联想 ThinkPad T14 G4 AMD 笔记本电脑评测：小巧的 ThinkPad 中的 Ryzen 功能
联想 Thinkpad T14 Gen 4 是一款面向大型企业客户的中端商务笔记本电脑。这类笔记本电脑买家看重的是长期稳定性、安全性和质量。当然，性能、电池续航时间和输入设备以及连接选项等方面也同样重要。
联想提供两种型号的 ThinkPad T14 G4：英特尔 13 代或 AMD Ryzen 7000。我们已经测试过英特尔型号的 T14 G4 。今天，轮到 AMD 变体了。
潜在的竞争对手比较
Rating | Date | Model | Weight | Height | Size | Resolution | Price |
|---|---|---|---|---|---|---|---|
| 90.4 % v7 (old) | 12 / 2023 | Lenovo ThinkPad T14 G4 21K4S02000 R7 PRO 7840U, Radeon 780M | 1.5 kg | 17.9 mm | 14.00" | 1920x1200 | |
| 88.5 % v7 (old) | 09 / 2023 | Lenovo ThinkPad T14 G4 21HD0043GE i5-1335U, Iris Xe G7 80EUs | 1.4 kg | 17.9 mm | 14.00" | 1920x1200 | |
| 90.5 % v7 (old) | 09 / 2023 | HP EliteBook 845 G10 5Z4X0ES R7 7840U, Radeon 780M | 1.5 kg | 17.9 mm | 14.00" | 1920x1200 | |
| 90.3 % v7 (old) | 07 / 2023 | Dell Latitude 7440 i5-1345U, Iris Xe G7 80EUs | 1.2 kg | 17.95 mm | 14.00" | 2560x1600 | |
| 88.8 % v7 (old) | 09 / 2022 | Lenovo ThinkPad T14 G3-21CF004NGE R7 PRO 6850U, Radeon 680M | 1.4 kg | 17.9 mm | 14.00" | 1920x1200 |
底盘：塑料外壳有点吱吱作响
联想采用了 联想 ThinkPad T14 第 3 代没有任何变化。从质量上看，深灰色的 ThinkPad T14 G4 的定位低于 ThinkPad T14s G4，但高于 ThinkPad L14 G4.整个外壳由塑料制成，表面有一层黑色磨砂涂层；内部有一个镁合金框架。这使得 ThinkPad 笔记本电脑非常坚固，但与全金属笔记本电脑相比，机身硬度较低。
这台设备有一个非常恼人的方面：设备右前角有一点吱吱作响。而同样结构的联想 ThinkPad T14 G4 Intel 却没有出现这种情况。联想应该能更好地控制这种质量差异。
质量较高的是带有银色金属盖的下拉式铰链，它们不会晃动。单手打开屏幕是不可能的。ThinkPad 的最大打开角度为 180 度。
联想 ThinkPad T14 G4 与惠普的 EliteBook 845 G10.与 戴尔Latitude 7440 和 ThinkPad T14s G4 相比 ，它的重量稍重。在尺寸方面，这四款商务机型不相上下，只有戴尔略微小巧一些。
连接性带 RJ45 接口的 ThinkPad 笔记本电脑
联想 ThinkPad T14 的一个显著特点是配备了 RJ45 以太网端口，这在目前的笔记本电脑上已是罕见的标准配置。这使该机型有别于 ThinkPad T14s G4的区别。与该系列相比，ThinkPad T14 G4 AMD 只配备了一个 USB4 端口。这与 ThinkPad T14 G4 英特尔一样，拥有两个 Thunderbolt 4 端口。
交流
联想使用高通 WCN685x 作为 AMD ThinkPads 的主要通信解决方案。这个 2x2 模块支持 WiFi 6E 标准，在 6 GHz 频谱下也能提供很高的传输速率。
作为 WiFi 的替代方案，还提供千兆以太网端口。此外，联想 ThinkPad T14 G4 还可选配 4G LTE。评测机可进行 WWAN 升级。
网络摄像头
联想将网络摄像头的分辨率从 1080p 升级到了 500 万像素。在理想的光线条件下，画面确实明显更清晰。在较暗的光线下，图像质量会迅速下降。智能手机的摄像头还是要好得多。
安全
企业笔记本电脑以其广泛的安全功能而闻名。联想 ThinkPad T14 G4 就是一个很好的例子：除了 Kensington 锁插槽外，评测设备还配备了专用的 TPM 2.0 芯片。为了实现快速、安全的登录，联想为 ThinkPad 配备了指纹识别器和用于 Windows Hello 的红外摄像头。此外，网络摄像头还配备了机械式隐私快门。
配件
除了 65 W USB C 充电器外，包装盒中没有其他设备。
维护
与其他类别的设备相比，商务笔记本电脑几乎总是更容易打开和维修。背面和侧面总共有七颗十字螺丝和几个夹子。拧松螺丝后，ThinkPad T14 Gen 4 的内部结构就显露出来了。遗憾的是，升级该机型的方法并不多。AMD 机型的内存始终焊接在下面，而英特尔机型则不同。WiFi 芯片也是板载的。只有固态硬盘可以升级，还有一个开放式的 M.2 2242 插槽，可用于选配 WWAN 模块。电池只需用螺丝拧紧，散热系统可以轻松清洁。
该机型还有一个如今很少见的特殊功能：用户可更换键盘。这是与其他更薄的 ThinkPad 的重要区别。键盘是一个消耗性部件，因此可以轻松更换是非常有用的。
保修
此次评测的笔记本电脑是一款专为学生设计的机型，保修期为三年，提供现场服务和顶级支持，内置电池的保修期也更长。保修期为三年，可选择升级到五年。此款德国机型仅在德国提供现场服务和顶级支持。在国际上，则提供上门服务。
输入设备没有缺陷的 ThinkPad
键盘
与上一代产品相比，联想没有改变输入设备。总的来说，这意味着带有 1.5 毫米行程和微凹按键的 Chiclet 键盘采用了 ThinkPad 的典型布局，并带有两级 LED 键灯。这种布局的好处之一是方向键间距适中。另一方面，FN/Ctrl 键的排列方式对许多用户来说并不常见。光滑按键的打字手感非常好，虽然不像以前那么豪华。尽管如此，它仍然是市场上最好的笔记本键盘之一。
触摸板
与键盘一样，触摸板和 TrackPoint 也没有变化。触摸板采用塑料表面，尺寸略低于平均水平，集成了点击机制，但实际上只有下半部可以点击。触摸板足够光滑，手指可以毫不费力地滑动，但也非常容易脏污。主观上的质量感觉与玻璃触摸板不太一样。不过点击机构非常出色，没有任何晃动。同样优质的还有红色的 TrackPoint，它可以与触摸板上方的专用鼠标键一起使用。用户只需按压橡胶盖即可轻松控制鼠标，专用按键既安静又顺滑。总而言之，这些都是非常出色的输入设备，能让用户获得愉悦的工作体验。
显示屏：众所周知的低功耗面板
当涉及到 ThinkPad 笔记本电脑的屏幕选项时，买家有很多选择。联想 ThinkPad T14 Gen 4 AMD 也是如此，有六种不同的面板可供选择。屏幕尺寸均为 14 英寸，格式为 16:10。
- WUXGA (1,920 x 1,200), IPS, 300 cd/m², 45 % NTSC, 雾面
- WUXGA（1,920 x 1,200），IPS，300 cd/m²，45 % NTSC，亚光，On-Cell 触摸屏
- WUXGA（1,920 x 1,200），IPS，400 cd/m²，72 % NTSC，亚光，低功耗
- WUXGA（1,920 x 1,200），IPS，500 cd/m²，72 % NTSC，亚光，On-Cell Touch，隐私保护装置
- 2.2K（2,240 x 1,400），IPS，300 cd/m²，72 % NTSC，哑光
- 2.8K（2,880 x 1,800），OLED，400 cd/m²，100 % DCI P3，半光泽，杜比视界
对于个人用户来说，我们评测的这款低功耗面板可能是最受欢迎、最全面的选择。该面板的平均亮度为 379 cd/m²，仅勉强达到 400 cd/m² 的目标。最高亮度为 398 cd/m²，几乎达到了要求。与其他商用笔记本电脑相比，只有 戴尔Latitude 7440的 WQXGA 屏幕亮度更高。
| |||||||||||||||||||||||||
Brightness Distribution: 90 %
Center on Battery: 398 cd/m²
Contrast: 1730:1 (Black: 0.23 cd/m²)
ΔE Color 1.3 | 0.5-29.43 Ø4.92, calibrated: 1.2
ΔE Greyscale 1.4 | 0.5-98 Ø5.2
69.4% AdobeRGB 1998 (Argyll 2.2.0 3D)
97.8% sRGB (Argyll 2.2.0 3D)
67.1% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.26
| Lenovo ThinkPad T14 G4 21K4S02000 MNE007JA1-1, IPS LED, 1920x1200, 14" | Lenovo ThinkPad T14 G4 21HD0043GE B140UAN02.1, IPS-AHVA LTPS wLED, 1920x1200, 14" | HP EliteBook 845 G10 5Z4X0ES CMN1435, IPS, 1920x1200, 14" | Dell Latitude 7440 AU Optronics B140QAX, IPS, 2560x1600, 14" | Lenovo ThinkPad T14 G3-21CF004NGE LP140WU1-SPB2, IPS, 1920x1200, 14" | |
|---|---|---|---|---|---|
| Display | 8% | 4% | 8% | 2% | |
| Display P3 Coverage | 67.1 | 74.8 11% | 70.6 5% | 75.4 12% | 69.2 3% |
| sRGB Coverage | 97.8 | 98.9 1% | 100 2% | 99.9 2% | 97.4 0% |
| AdobeRGB 1998 Coverage | 69.4 | 76.7 11% | 72.4 4% | 76.2 10% | 71.5 3% |
| Response Times | -28% | -29% | -35% | 8% | |
| Response Time Grey 50% / Grey 80% * | 38.4 ? | 48.3 ? -26% | 59.7 ? -55% | 56 ? -46% | 41.4 ? -8% |
| Response Time Black / White * | 25.1 ? | 32.6 ? -30% | 25.5 ? -2% | 30.8 ? -23% | 19.2 ? 24% |
| PWM Frequency | |||||
| Screen | -95% | -21% | -66% | -22% | |
| Brightness middle | 398 | 376 -6% | 409 3% | 517.3 30% | 451 13% |
| Brightness | 379 | 369 -3% | 391 3% | 488 29% | 435 15% |
| Brightness Distribution | 90 | 86 -4% | 92 2% | 88 -2% | 94 4% |
| Black Level * | 0.23 | 0.23 -0% | 0.27 -17% | 0.34 -48% | 0.21 9% |
| Contrast | 1730 | 1635 -5% | 1515 -12% | 1521 -12% | 2148 24% |
| Colorchecker dE 2000 * | 1.3 | 4.3 -231% | 2.3 -77% | 3.3 -154% | 2.4 -85% |
| Colorchecker dE 2000 max. * | 3.1 | 9.9 -219% | 4.4 -42% | 7.81 -152% | 4.1 -32% |
| Colorchecker dE 2000 calibrated * | 1.2 | 1.6 -33% | 0.9 25% | 1.02 15% | 1.3 -8% |
| Greyscale dE 2000 * | 1.4 | 6.4 -357% | 2.4 -71% | 5.6 -300% | 3.3 -136% |
| Gamma | 2.26 97% | 2.24 98% | 2.06 107% | 2.37 93% | 2.13 103% |
| CCT | 6448 101% | 6019 108% | 6293 103% | 6804 96% | 6848 95% |
| Total Average (Program / Settings) | -38% /
-64% | -15% /
-17% | -31% /
-46% | -4% /
-12% |
* ... smaller is better
出厂时，我们测得的 Colorchecker deltaE 值较低，为 1.3，这表明该面板的色彩准确度很高。在使用 X-Rite i1 Pro 3 和 X-Rite i1 Profiler 校准时，我们只能将其略微降至 1.2，正如我们的 Calman 测量结果所示。
联想 ThinkPad T14 G4 的低功耗面板几乎完全覆盖了 sRGB 色域，因此适用于简单的照片编辑。
在室外，联想笔记本电脑的屏幕非常好用。磨砂屏幕表面最大限度地减少了反光。加上良好的屏幕亮度，即使在明亮的环境中，用户也能看清显示的内容。只有阳光直射可能是个挑战。
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 25.1 ms ... rise ↗ and fall ↘ combined | ↗ 11.5 ms rise |  |
| ↘ 13.6 ms fall | ||
| The screen shows relatively slow response rates in our tests and may be too slow for gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 57 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (21 ms). | ||
| ↔ Response Time 50% Grey to 80% Grey | ||
| 38.4 ms ... rise ↗ and fall ↘ combined | ↗ 18 ms rise |  |
| ↘ 20.4 ms fall | ||
| The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.165 (minimum) to 636 (maximum) ms. » 54 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (32.9 ms). | ||
Screen Flickering / PWM (Pulse-Width Modulation)
| Screen flickering / PWM not detected |  | ||
In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8743 (minimum: 5 - maximum: 343500) Hz was measured. | |||
性能：Ryzen 在多核性能上击败酷睿 i 毫不费力
联想为 ThinkPad T14 Gen 4 AMD 提供了两种不同的 CPU 选择：这两款CPU AMD Ryzen Pro 5 7540U和 Ryzen Pro 7 7840U.根据所选 CPU 的不同，GPU 可以是 AMD Radeon 740M或 Radeon 780M.
这款 ThinkPad 机型的内存始终是焊接下来的。联想在板上安装了 8 GB LPDDR5-6400 或 16 至 32 GB LPDDRX-6400。对于单个 M.2 2280 SSD 插槽，出厂时的最大容量为 2 TB。
测试条件
与 ThinkPads 的一贯做法一样，联想使用内置的 Windows 电源管理解决方案来调节能源设置。这些设置会影响性能、功耗以及风扇噪音和温度等方面，因为它们设置了功率限制。这些是 CPU 的功耗限制。功率极限 1 (PL1) 代表持续负载下的功耗，而功率极限 2 (PL2) 则描述了短期提升性能时的最大功耗。
- 最佳电池寿命：PL1 12 瓦/PL2 12 瓦
- 平衡：PL1 24 瓦 / PL2 26.5 瓦
- 最佳性能：PL1 27.5 瓦 / PL2 32.5 瓦
处理器
......（英文 AMD Ryzen Pro 7 7840U是 AMD 代号为 Phoenix 的 2023 代 Zen 4 处理器。这款 Ryzen 芯片有 8 个内核和最多 16 个线程，时钟频率在 3.3 至 5.1 GHz 之间。要与其他 CPU 进行广泛比较，我们提供了 CPU 列表.
与前代产品的直接比较 联想 ThinkPad T14 第 3 代 AMD的直接对比显示，其性能明显提高了约 20%。更薄的 ThinkPad T14s G4与 T14 G4 AMD 相比并不尽如人意，但差距也不大，超薄机型的性能降低了 4%。惠普 惠普 EliteBook 845 G10与我们评测的笔记本电脑性能相当。在多核性能方面，英特尔absed机型远远落后，只有在单核性能方面具有竞争力。
在电池模式下，CPU 能够充分发挥其性能潜力，不会出现任何人为的节流现象。
Cinebench R15 multi sustained performance
Cinebench R23: Multi Core | Single Core
Cinebench R20: CPU (Multi Core) | CPU (Single Core)
Cinebench R15: CPU Multi 64Bit | CPU Single 64Bit
Blender: v2.79 BMW27 CPU
7-Zip 18.03: 7z b 4 | 7z b 4 -mmt1
Geekbench 5.5: Multi-Core | Single-Core
HWBOT x265 Benchmark v2.2: 4k Preset
LibreOffice : 20 Documents To PDF
R Benchmark 2.5: Overall mean
| CPU Performance Rating | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Average of class Office | |
| Cinebench R23 / Multi Core | |
| Average AMD Ryzen 7 PRO 7840U (10576 - 15142, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Dell Latitude 7440 | |
| Average of class Office (1577 - 15743, n=92, last 2 years) | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Cinebench R23 / Single Core | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Average AMD Ryzen 7 PRO 7840U (1703 - 1747, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average of class Office (618 - 1995, n=92, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Cinebench R20 / CPU (Multi Core) | |
| Average AMD Ryzen 7 PRO 7840U (4210 - 5981, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Dell Latitude 7440 | |
| Average of class Office (590 - 5980, n=92, last 2 years) | |
| Cinebench R20 / CPU (Single Core) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| Average AMD Ryzen 7 PRO 7840U (652 - 684, n=5) | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Dell Latitude 7440 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average of class Office (229 - 764, n=92, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Cinebench R15 / CPU Multi 64Bit | |
| Average AMD Ryzen 7 PRO 7840U (1590 - 2418, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Average of class Office (246 - 2642, n=93, last 2 years) | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Cinebench R15 / CPU Single 64Bit | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| Average AMD Ryzen 7 PRO 7840U (247 - 273, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Average of class Office (98 - 284, n=92, last 2 years) | |
| Blender / v2.79 BMW27 CPU | |
| Average of class Office (208 - 1956, n=93, last 2 years) | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| Average AMD Ryzen 7 PRO 7840U (217 - 380, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| 7-Zip 18.03 / 7z b 4 | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average AMD Ryzen 7 PRO 7840U (34490 - 62320, n=5) | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Dell Latitude 7440 | |
| Average of class Office (7532 - 65460, n=93, last 2 years) | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| 7-Zip 18.03 / 7z b 4 -mmt1 | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average AMD Ryzen 7 PRO 7840U (5633 - 5988, n=5) | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Dell Latitude 7440 | |
| Average of class Office (2972 - 6687, n=93, last 2 years) | |
| Geekbench 5.5 / Multi-Core | |
| Average AMD Ryzen 7 PRO 7840U (9663 - 10920, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Average of class Office (1018 - 11980, n=92, last 2 years) | |
| Geekbench 5.5 / Single-Core | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U (1740 - 1895, n=5) | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Average of class Office (510 - 1989, n=93, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| HWBOT x265 Benchmark v2.2 / 4k Preset | |
| Average AMD Ryzen 7 PRO 7840U (13.6 - 17.8, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Dell Latitude 7440 | |
| Average of class Office (1.72 - 18.7, n=91, last 2 years) | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| LibreOffice / 20 Documents To PDF | |
| Average of class Office (31.3 - 129.6, n=91, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Average AMD Ryzen 7 PRO 7840U (45.8 - 52, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
| Dell Latitude 7440 | |
| R Benchmark 2.5 / Overall mean | |
| Average of class Office (0.4244 - 1.135, n=90, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average AMD Ryzen 7 PRO 7840U (0.4658 - 0.4807, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Lenovo ThinkPad T14s G4-21F8002TGE | |
* ... smaller is better
AIDA64: FP32 Ray-Trace | FPU Julia | CPU SHA3 | CPU Queen | FPU SinJulia | FPU Mandel | CPU AES | CPU ZLib | FP64 Ray-Trace | CPU PhotoWorxx
| Performance Rating | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Average of class Office | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| AIDA64 / FP32 Ray-Trace | |
| Average AMD Ryzen 7 PRO 7840U (17604 - 23889, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Average of class Office (763 - 24250, n=92, last 2 years) | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| AIDA64 / FPU Julia | |
| Average AMD Ryzen 7 PRO 7840U (77578 - 100087, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Average of class Office (4113 - 102228, n=92, last 2 years) | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| AIDA64 / CPU SHA3 | |
| Average AMD Ryzen 7 PRO 7840U (3611 - 4394, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Dell Latitude 7440 | |
| Average of class Office (287 - 4551, n=92, last 2 years) | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| AIDA64 / CPU Queen | |
| Average AMD Ryzen 7 PRO 7840U (95020 - 110151, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Average of class Office (8185 - 115197, n=92, last 2 years) | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| AIDA64 / FPU SinJulia | |
| Average AMD Ryzen 7 PRO 7840U (12250 - 14151, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Average of class Office (404 - 14288, n=92, last 2 years) | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| AIDA64 / FPU Mandel | |
| Average AMD Ryzen 7 PRO 7840U (41143 - 53280, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Average of class Office (2075 - 54365, n=92, last 2 years) | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| AIDA64 / CPU AES | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U (66300 - 142329, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average of class Office (7860 - 155900, n=92, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| AIDA64 / CPU ZLib | |
| Average AMD Ryzen 7 PRO 7840U (777 - 1004, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Dell Latitude 7440 | |
| Average of class Office (78 - 1018, n=92, last 2 years) | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| AIDA64 / FP64 Ray-Trace | |
| Average AMD Ryzen 7 PRO 7840U (9494 - 12540, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Average of class Office (432 - 12755, n=92, last 2 years) | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| AIDA64 / CPU PhotoWorxx | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U (33564 - 38442, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average of class Office (4814 - 54971, n=92, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
系统性能
联想 ThinkPad T14 G4 AMD 在系统性能对比中名列前茅。在日常性能方面也毫无怨言。
CrossMark: Overall | Productivity | Creativity | Responsiveness
WebXPRT 3: Overall
WebXPRT 4: Overall
Mozilla Kraken 1.1: Total
| PCMark 10 / Score | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U, AMD Radeon 780M (6541 - 7012, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Average of class Office (2463 - 7344, n=86, last 2 years) | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| PCMark 10 / Essentials | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Dell Latitude 7440 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Average AMD Ryzen 7 PRO 7840U, AMD Radeon 780M (10055 - 10934, n=5) | |
| Average of class Office (5575 - 20841, n=86, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| PCMark 10 / Productivity | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average AMD Ryzen 7 PRO 7840U, AMD Radeon 780M (8921 - 9933, n=5) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Average of class Office (3041 - 10415, n=86, last 2 years) | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Dell Latitude 7440 | |
| PCMark 10 / Digital Content Creation | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U, AMD Radeon 780M (7806 - 8874, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Average of class Office (2126 - 9773, n=86, last 2 years) | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| CrossMark / Overall | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U, AMD Radeon 780M (1533 - 1669, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Average of class Office (348 - 1891, n=86, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| CrossMark / Productivity | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U, AMD Radeon 780M (1461 - 1624, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Average of class Office (393 - 1870, n=86, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| CrossMark / Creativity | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U, AMD Radeon 780M (1697 - 1824, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Average of class Office (340 - 1982, n=86, last 2 years) | |
| CrossMark / Responsiveness | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U, AMD Radeon 780M (1049 - 1499, n=5) | |
| Average of class Office (258 - 2017, n=86, last 2 years) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| WebXPRT 3 / Overall | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average AMD Ryzen 7 PRO 7840U, AMD Radeon 780M (259 - 317, n=5) | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Average of class Office (121 - 455, n=84, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| WebXPRT 4 / Overall | |
| Dell Latitude 7440 | |
| Average AMD Ryzen 7 PRO 7840U, AMD Radeon 780M (234 - 245, n=2) | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average of class Office (80 - 328, n=84, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Mozilla Kraken 1.1 / Total | |
| Average of class Office (404 - 1966, n=91, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average AMD Ryzen 7 PRO 7840U, AMD Radeon 780M (523 - 571, n=5) | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
* ... smaller is better
| PCMark 10 Score | 6973 points | |
Help | ||
| AIDA64 / Memory Copy | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U (66487 - 67856, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Dell Latitude 13 7340 i5-1345U | |
| Average of class Office (7158 - 108783, n=93, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| AIDA64 / Memory Read | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U (47725 - 50543, n=5) | |
| Average of class Office (7325 - 112436, n=93, last 2 years) | |
| Dell Latitude 13 7340 i5-1345U | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| AIDA64 / Memory Write | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Average AMD Ryzen 7 PRO 7840U (89477 - 94965, n=5) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Dell Latitude 13 7340 i5-1345U | |
| Average of class Office (7579 - 117935, n=93, last 2 years) | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| AIDA64 / Memory Latency | |
| Average AMD Ryzen 7 PRO 7840U (128.6 - 138.9, n=5) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Dell Latitude 13 7340 i5-1345U | |
| Average of class Office (8.3 - 185.2, n=93, last 2 years) | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
* ... smaller is better
DPC 延迟
联想 ThinkPad T14 G4 AMD 存在一些 DPC 延迟问题，但没有英特尔同款机型那么明显。对于实时音频/视频编辑来说，这仍然是一个问题。不过，这种情况随时可能因 BIOS 更新而发生变化。
| DPC Latencies / LatencyMon - interrupt to process latency (max), Web, Youtube, Prime95 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Dell Latitude 7440 | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
* ... smaller is better
大容量存储器
这里使用的三星 PM9A1a 固态硬盘性能卓越。M.2 2280 固态硬盘容量为 1 TB，通过快速 PCIe 4.0 NVMe 标准连接。
* ... smaller is better
Sustained load read: DiskSpd Read Loop, Queue Depth 8
GPU
迚ケ谿オ譎る俣 AMD Radeon 780M是 Windows 世界中速度最快的 iGPU 解决方案之一。与英特尔较早的 iGPU Xe GPU 的区别显而易见：AMD Radeon 780M 是目前 Windows 世界中速度最快的 iGPU 解决方案之一。 戴尔Latitude 7440在 3DMark 基准测试中得分降低了 46%。在游戏基准测试中也是如此。值得注意的是，老款 Radeon 680MRadeon 680M 在 Ryzen 6000 系列中的性能几乎没有下降，大约只有 4% 至 5%。
| 3DMark 11 Performance | 10734 points | |
| 3DMark Cloud Gate Standard Score | 32669 points | |
| 3DMark Fire Strike Score | 6665 points | |
| 3DMark Time Spy Score | 2847 points | |
Help | ||
| Performance Rating - Percent | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average of class Office | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| The Witcher 3 - 1920x1080 Ultra Graphics & Postprocessing (HBAO+) | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average of class Office (3.8 - 34, n=79, last 2 years) | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| GTA V - 1920x1080 Highest Settings possible AA:4xMSAA + FX AF:16x | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average of class Office (3.35 - 47.8, n=78, last 2 years) | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Final Fantasy XV Benchmark - 1920x1080 High Quality | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Dell Latitude 7440 | |
| Average of class Office (3.86 - 35.7, n=87, last 2 years) | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Strange Brigade - 1920x1080 ultra AA:ultra AF:16 | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Average of class Office (9.6 - 56.5, n=73, last 2 years) | |
| Dell Latitude 7440 | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
| Dota 2 Reborn - 1920x1080 ultra (3/3) best looking | |
| Lenovo ThinkPad T14 G4 21K4S02000 | |
| Lenovo ThinkPad T14 G3-21CF004NGE | |
| HP EliteBook 845 G10 5Z4X0ES | |
| Dell Latitude 7440 | |
| Average of class Office (13.4 - 121.2, n=94, last 2 years) | |
| Lenovo ThinkPad T14 G4 21HD0043GE | |
Witcher 3 FPS diagram
| low | med. | high | ultra | |
|---|---|---|---|---|
| GTA V (2015) | 141 | 134.3 | 58.7 | 25.1 |
| The Witcher 3 (2015) | 119.8 | 82 | 40.7 | 25.3 |
| Dota 2 Reborn (2015) | 118.1 | 94.3 | 76.9 | 67 |
| Final Fantasy XV Benchmark (2018) | 68.8 | 34.9 | 26.5 | |
| X-Plane 11.11 (2018) | 47.6 | 34.6 | 27.9 | |
| Strange Brigade (2018) | 145.7 | 60.8 | 51.5 | 44.6 |
| F1 23 (2023) | 75.4 | 65.9 | 45.6 | 9.63 |
排放：扬声器有点弱
噪音
ThinkPad 笔记本电脑在空转时非常安静。在负载情况下，它也比 ThinkPad T14 G4 Intel 更安静。但这还不足以使它在这一类别中胜出，因为更安静的 惠普 EliteBook 845 G10领先。
没有线圈啸叫，风扇也没有高音运转。
Noise Level
| Idle |
| 23.1 / 23.1 / 23.1 dB(A) |
| Load |
| 26.5 / 35.78 dB(A) |
 | ||
30 dB silent 40 dB(A) audible 50 dB(A) loud |
||
min:  , med:  , max:  Earthworks M23R, Arta (15 cm distance) environment noise: 23.1 dB(A) | ||
| Lenovo ThinkPad T14 G4 21K4S02000 Radeon 780M, R7 PRO 7840U, Samsung PM9A1a MZVL21T0HDLU | Lenovo ThinkPad T14 G4 21HD0043GE Iris Xe G7 80EUs, i5-1335U, Kioxia BG5 KBG5AZNV512G | HP EliteBook 845 G10 5Z4X0ES Radeon 780M, R7 7840U, WD PC SN740 512GB SDDPNQD-512G | Dell Latitude 13 7340 i5-1345U Iris Xe G7 80EUs, i5-1345U, Kioxia BG5 KBG50ZNS512G | Lenovo ThinkPad T14 G3-21CF004NGE Radeon 680M, R7 PRO 6850U, Kioxia BG5 KBG5AZNV512G | |
|---|---|---|---|---|---|
| Noise | -3% | 4% | -12% | -8% | |
| off / environment * | 23.1 | 23 -0% | 22.9 1% | 25.02 -8% | 24.2 -5% |
| Idle Minimum * | 23.1 | 23 -0% | 22.9 1% | 25.02 -8% | 24.2 -5% |
| Idle Average * | 23.1 | 23 -0% | 22.9 1% | 25.02 -8% | 24.2 -5% |
| Idle Maximum * | 23.1 | 24.9 -8% | 22.9 1% | 25.02 -8% | 25.8 -12% |
| Load Average * | 26.5 | 26.1 2% | 24.3 8% | 35.07 -32% | 32.2 -22% |
| Witcher 3 ultra * | 35.7 | 38.4 -8% | 32.4 9% | 34.1 4% | |
| Load Maximum * | 35.78 | 38.5 -8% | 33.9 5% | 38.2 -7% | 38.8 -8% |
* ... smaller is better
热量
虽然 ThinkPad 的运行声音比 EliteBook 稍大，但负载情况下的温度却较低。我们在底部热点测得的最高温度为 47.5 摄氏度/117 华氏度。ThinkPad 的前部和掌托都保持完全冷却。
在使用 Prime95 和 Furmark 进行压力测试时，即使同时运行这些工具一个小时，也没有出现节流现象。
(±) The maximum temperature on the upper side is 43.5 °C / 110 F, compared to the average of 34.3 °C / 94 F, ranging from 21.2 to 62.5 °C for the class Office.
(-) The bottom heats up to a maximum of 47.4 °C / 117 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 24.5 °C / 76 F, compared to the device average of 29.5 °C / 85 F.
(±) Playing The Witcher 3, the average temperature for the upper side is 33.7 °C / 93 F, compared to the device average of 29.5 °C / 85 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 28.3 °C / 82.9 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 27.7 °C / 81.9 F (-0.6 °C / -1 F).
| Lenovo ThinkPad T14 G4 21K4S02000 AMD Ryzen 7 PRO 7840U, AMD Radeon 780M | Lenovo ThinkPad T14 G4 21HD0043GE Intel Core i5-1335U, Intel Iris Xe Graphics G7 80EUs | HP EliteBook 845 G10 5Z4X0ES AMD Ryzen 7 7840U, AMD Radeon 780M | Dell Latitude 13 7340 i5-1345U Intel Core i5-1345U, Intel Iris Xe Graphics G7 80EUs | Lenovo ThinkPad T14 G3-21CF004NGE AMD Ryzen 7 PRO 6850U, AMD Radeon 680M | |
|---|---|---|---|---|---|
| Heat | -1% | -6% | 4% | -4% | |
| Maximum Upper Side * | 43.5 | 41.5 5% | 45.4 -4% | 34.3 21% | 48.2 -11% |
| Maximum Bottom * | 47.4 | 43 9% | 50.6 -7% | 37.6 21% | 52.8 -11% |
| Idle Upper Side * | 24.9 | 27.8 -12% | 26.8 -8% | 28.4 -14% | 24.4 2% |
| Idle Bottom * | 26 | 27.8 -7% | 26.8 -3% | 28.8 -11% | 24.5 6% |
* ... smaller is better
发言人
联想ThinkPad T14 AMD的扬声器与惠普EliteBook 845 G10的扬声器相似，质量有限。 HP EliteBook 845 G10.但有一个关键区别：ThinkPad 的扬声器位于键盘上方，声音要小得多。
Lenovo ThinkPad T14 G4 21K4S02000 audio analysis
(±) | speaker loudness is average but good (75.7 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 26% lower than median
(±) | linearity of bass is average (12.4% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 1.6% away from median
(+) | mids are linear (4.1% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.4% away from median
(+) | highs are linear (3.9% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (19.5% difference to median)
Compared to same class
» 35% of all tested devices in this class were better, 7% similar, 58% worse
» The best had a delta of 7%, average was 22%, worst was 53%
Compared to all devices tested
» 45% of all tested devices were better, 7% similar, 48% worse
» The best had a delta of 4%, average was 25%, worst was 134%
HP EliteBook 845 G10 818N0EA audio analysis
(+) | speakers can play relatively loud (83.2 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 19.5% lower than median
(±) | linearity of bass is average (13.3% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.4% away from median
(+) | mids are linear (2.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.2% away from median
(+) | highs are linear (3.6% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (14.2% difference to median)
Compared to same class
» 7% of all tested devices in this class were better, 3% similar, 89% worse
» The best had a delta of 7%, average was 22%, worst was 53%
Compared to all devices tested
» 15% of all tested devices were better, 4% similar, 82% worse
» The best had a delta of 4%, average was 25%, worst was 134%
能源管理：AMD 实现高效
耗电量
在功耗方面，联想 ThinkPad T14 G4 AMD 可以做得更好。空闲时，它的耗电量高于竞争对手，戴尔Latitude 7440 除外。不过，由于屏幕分辨率较高，该机型存在劣势。
51.8 瓦的最大功耗对于 65 瓦的充电器来说并非难事。
| Off / Standby | 0.4 / 0.8 Watt |
| Idle | 3.3 / 5.6 / 6.1 Watt |
| Load |
40.1 / 51.8 Watt |
   
| |
Key:
min: ,
med: ,
max: Metrahit Energy | |
| Lenovo ThinkPad T14 G4 21K4S02000 R7 PRO 7840U, Radeon 780M, Samsung PM9A1a MZVL21T0HDLU, IPS LED, 1920x1200, 14" | Lenovo ThinkPad T14 G4 21HD0043GE i5-1335U, Iris Xe G7 80EUs, Kioxia BG5 KBG5AZNV512G, IPS-AHVA LTPS wLED, 1920x1200, 14" | HP EliteBook 845 G10 5Z4X0ES R7 7840U, Radeon 780M, WD PC SN740 512GB SDDPNQD-512G, IPS, 1920x1200, 14" | Dell Latitude 7440 i5-1345U, Iris Xe G7 80EUs, Samsung MZ9L4512HBLU-00BMV, IPS, 2560x1600, 14" | Lenovo ThinkPad T14 G3-21CF004NGE R7 PRO 6850U, Radeon 680M, Kioxia BG5 KBG5AZNV512G, IPS, 1920x1200, 14" | Average AMD Radeon 780M | Average of class Office | |
|---|---|---|---|---|---|---|---|
| Power Consumption | 9% | 7% | -23% | 7% | -60% | -29% | |
| Idle Minimum * | 3.3 | 2.4 27% | 3.2 3% | 4.5 -36% | 2.4 27% | 6.2 ? -88% | 4.54 ? -38% |
| Idle Average * | 5.6 | 4.5 20% | 5.1 9% | 6.5 -16% | 5.3 5% | 8.44 ? -51% | 7.49 ? -34% |
| Idle Maximum * | 6.1 | 5.6 8% | 5.4 11% | 7.3 -20% | 5.6 8% | 10.8 ? -77% | 9.14 ? -50% |
| Load Average * | 40.1 | 29.5 26% | 39.1 2% | 52.5 -31% | 39.7 1% | 56.3 ? -40% | 42.8 ? -7% |
| Witcher 3 ultra * | 41.4 | 40.8 1% | 39.8 4% | 46.2 -12% | 42.8 -3% | ||
| Load Maximum * | 51.8 | 67.2 -30% | 46.6 10% | 63 -22% | 50.6 2% | 75.3 ? -45% | 61.3 ? -18% |
* ... smaller is better
Power consumption Witcher 3 / stress test
Power consumption with an external monitor
电池寿命
尽管空闲时的耗电量略高，但联想从 ThinkPad T14 G4 AMD 内部 52.5 Wh 电池中获得的电池续航时间还是不错的。在 WiFi 测试（150 cd/m²）中，ThinkPad 的续航时间略高于 12 小时，而在全亮度运行的相同测试中，ThinkPad 的续航时间为 8.5 小时，这使它成为了一款持久的日常伴侣。
| Lenovo ThinkPad T14 G4 21K4S02000 R7 PRO 7840U, Radeon 780M, 52.5 Wh | Lenovo ThinkPad T14 G4 21HD0043GE i5-1335U, Iris Xe G7 80EUs, 52.5 Wh | HP EliteBook 845 G10 5Z4X0ES R7 7840U, Radeon 780M, 51 Wh | Dell Latitude 7440 i5-1345U, Iris Xe G7 80EUs, 57 Wh | Lenovo ThinkPad T14 G3-21CF004NGE R7 PRO 6850U, Radeon 680M, 52.5 Wh | Average of class Office | |
|---|---|---|---|---|---|---|
| Battery Runtime | -8% | -6% | 36% | -9% | 1% | |
| WiFi v1.3 | 729 | 666 -9% | 779 7% | 781 7% | 772 6% | 602 ? -17% |
| Load | 100 | 94 -6% | 81 -19% | 164 64% | 76 -24% | 118.1 ? 18% |
Pros
Cons
结论：ThinkPad T14 第 4 代 AMD 版优于英特尔版
联想再次推出了一款 ThinkPad 笔记本电脑，ThinkPad T14 Gen 4 AMD 获得了我们 "非常好 "的评价。总的来说，它是一款出色的工作工具。但它也并非没有弱点。
其中之一就是：机箱有轻微的吱吱声，这确实降低了设计的主观质量。昂贵的商务笔记本电脑不应该出现这种情况，即使这款笔记本电脑在制造过程中使用的塑料多于金属。与惠普的 EliteBook 845 G10 相比，焊接内存也是一个缺点，就像扬声器声音太小一样。
除此之外，我们还非常喜欢这款笔记本电脑。它有很多端口，RJ45 以太网是其一大特色。WWAN 可以升级，以获得最大的灵活性，ThinkPad 还有许多安全功能。使用 ThinkPad 的输入设备非常有趣，联想还提供了实用的低功耗面板。AMD Ryzen 7 Pro 7840U 性能出色，电池消耗也不快。风扇噪音和温度并无特别之处，但也远非糟糕。通过用户可更换键盘，ThinkPad T14 Gen 4 拥有了大多数现代笔记本电脑少有的特殊功能。
联想 ThinkPad T14 Gen 4 AMD 是企业用户的理想之选。不过，它也有一些弱点。
尤其是这项功能和 RJ45 端口，是与其他采用这种 CPU 的笔记本电脑相比的重要区别。竞争激烈：HP EliteBook 845 G10 扬声器的音量更大，机箱和内存插槽更高档，但缺少用户可更换键盘和 RJ45。同样，Lenovo ThinkPad T14s G4 AMD 也缺少这些功能，但它的设计更轻巧、更高档。
定价和可用性
此次评测的 21K4S02000 版本是德国联想校园计划的一部分，仅面向学生提供。它的价格为 1,300 欧元（含教育退款）。亚马逊网站提供的不同配置的 ThinkPad T14 第 4 代 AMD价格约为 1,270 美元。
Lenovo ThinkPad T14 G4 21K4S02000
- 12/22/2023 v7 (old)
Benjamin Herzig
Transparency
The selection of devices to be reviewed is made by our editorial team. The test sample was provided to the author as a loan by the manufacturer or retailer for the purpose of this review. The lender had no influence on this review, nor did the manufacturer receive a copy of this review before publication. There was no obligation to publish this review. We never accept compensation or payment in return for our reviews. As an independent media company, Notebookcheck is not subjected to the authority of manufacturers, retailers or publishers.
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