联想 ThinkPad L14 4 代英特尔评测：不再符合标准
ThinkPad L 系列是联想商务笔记本电脑的入门级产品。价格更实惠的只有联想 ThinkPad E 系列，该系列缺少 WWAN 和智能卡读卡器等功能，因此更适合消费者或小型企业使用。ThinkPad L14 是 L 系列中最受欢迎的机型之一--今天，我们将评测配备英特尔 CPU 的联想 ThinkPad L14 Gen 4。我们已经对 AMD 版本的 联想 ThinkPad L14 G4此外，我们还将对后继型号 ThinkPad L14 G5 进行评测。
潜在的竞争对手比较
Rating | Date | Model | Weight | Height | Size | Resolution | Price |
|---|---|---|---|---|---|---|---|
| 83.1 % | 06 / 2024 | Lenovo ThinkPad L14 G4 21H1003DGE i5-1335U, Iris Xe G7 80EUs | 1.6 kg | 23 mm | 14.00" | 1920x1080 | |
| 88.6 % v7 (old) | 08 / 2023 | Lenovo ThinkPad L14 G4 21H6S00900 R5 7530U, Vega 7 | 1.5 kg | 19.83 mm | 14.00" | 1920x1080 | |
| 84.6 % v7 (old) | 10 / 2023 | HP ProBook 445 G10 R5 7530U, Vega 7 | 1.3 kg | 20 mm | 14.00" | 1920x1080 | |
| 85.3 % v7 (old) | 06 / 2023 | Dell Latitude 3440 i5-1345U, Iris Xe G7 80EUs | 1.5 kg | 19.4 mm | 14.00" | 1920x1080 | |
| 82 % v7 (old) | 05 / 2024 | SCHENKER Work 14 Base i5-1235U, Iris Xe G7 80EUs | 1.3 kg | 20.2 mm | 14.00" | 1920x1080 |
底盘与连接：众所周知的 ThinkPad L 塑料设计
该机箱与我们已经测试过的 联想 ThinkPad L14 第 4 代 AMD.从外观上看，笔记本电脑由灰色哑光塑料制成。屏幕和掌托表面涂有光滑的油漆，底部和显示屏边框则有粗糙的纹理--这种纹理并不十分讨人喜欢，但也能起到一定的作用。尽管 L ThinkPad 没有采用镁合金防滚架，因此比 T 系列更灵活一些，但我们对其稳定性并无太大不满。尤其是左下角可以稍微扭动一下。带金属盖的银色铰链能牢牢固定屏幕，但无法单手打开。最大打开角度为 180 度。
与 AMD 版的 ThinkPad L14 G4 相比，英特尔版的 L14 G4 增加了一个雷电 4 端口，而 Ryzen 版则没有。该机型的一大特色是配备了 microSD 读卡器，这是近期大多数 ThinkPad 笔记本电脑都没有的功能。读卡器的速度一般。Wi-Fi 解决方案有点受限，联想采用了老式的英特尔 AX201。它能完成任务，但只支持 Wi-Fi 6，不支持更现代的 Wi-Fi 6E 或 7 标准。
ThinkPad L14 Gen 4 的升级能力不错。ThinkPad 有两个 SO-DIMM 插槽，可容纳过时的 DDR4 标准模块。最大容量可达 64 GB。固态硬盘也是模块化的，但令人遗憾的是，联想使用了较小的 M.2 2242 尺寸。因此，最大容量受到了限制。一个 M.2 2242 插槽是开放的。在这里，可以放入可选的 WWAN 卡，相应的天线已经就位。非常值得称赞的是用户可更换键盘，这是目前大多数现代笔记本电脑所缺乏的。
| SD Card Reader | |
| average JPG Copy Test (av. of 3 runs) | |
| SCHENKER Work 14 Base (Angelbird AV Pro V60) | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Average of class Office (22.7 - 198.5, n=35, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H1003DGE (AV Pro V60) | |
| maximum AS SSD Seq Read Test (1GB) | |
| Lenovo ThinkPad L14 G4 21H1003DGE (AV Pro V60) | |
| Lenovo ThinkPad L14 G4 21H6S00900 (AV Pro V60) | |
| SCHENKER Work 14 Base (Angelbird AV Pro V60) | |
| Average of class Office (25 - 249, n=31, last 2 years) | |
输入设备：经济实惠的 ThinkPad，出色的键盘和鼠标替代品
我们评测设备的输入设备与 ThinkPad L14 Gen 4 AMD 完全相同。触摸板、键盘和典型的红色 ThinkPad TrackPoint 都非常出色，尤其是对于一款相当便宜的笔记本电脑而言。无论是书写长篇文字还是使用鼠标导航，联想 ThinkPad L14 G4 Intel 都能轻松胜任，使用起来非常舒适。
显示器：简单的显示器，16:9 宽高比是其弱点
ThinkPad L14 Gen 4 是最后一款采用 16:9 宽屏格式的 14 英寸 ThinkPad，甚至还提供基于过时的 TN 技术的高清面板：
- 高清（1,366 x 768），TN，220 cd/m²，45% NTSC，哑光
- FHD（1,920 x 1,080），IPS，250 cd/m²，45 % NTSC，哑光
- 全高清（1,920 x 1,080），IPS，300 cd/m²，45 % NTSC，雾面，On-Cell 触摸屏
- 全高清（1,920 x 1,080），IPS，400 cd/m²，72 % NTSC，哑光，低功耗
该屏幕的质量足以满足办公室的日常使用，但也仅此而已。低于 300 cd/m² 的亮度低于平均水平。此外，背光出血现象也比较严重。
| |||||||||||||||||||||||||
Brightness Distribution: 88 %
Center on Battery: 286 cd/m²
Contrast: 1100:1 (Black: 0.26 cd/m²)
ΔE Color 7.2 | 0.5-29.43 Ø4.91, calibrated: 4.7
ΔE Greyscale 7.2 | 0.5-98 Ø5.2
44.7% AdobeRGB 1998 (Argyll 2.2.0 3D)
64.2% sRGB (Argyll 2.2.0 3D)
43.1% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.04
| Lenovo ThinkPad L14 G4 21H1003DGE N140HCA-E5B, IPS LED, 1920x1080, 14" | Lenovo ThinkPad L14 G4 21H6S00900 B140HAN06.9, IPS LED, 1920x1080, 14" | HP ProBook 445 G10 AUO2FA6, IPS, 1920x1080, 14" | Dell Latitude 3440 BOE NE140FH, IPS, 1920x1080, 14" | SCHENKER Work 14 Base B140HAN06.8, IPS, 1920x1080, 14" | |
|---|---|---|---|---|---|
| Display | 63% | 55% | -6% | 63% | |
| Display P3 Coverage | 43.1 | 73.2 70% | 68.4 59% | 40.4 -6% | 72.4 68% |
| sRGB Coverage | 64.2 | 98.9 54% | 95.2 48% | 60.7 -5% | 99.8 55% |
| AdobeRGB 1998 Coverage | 44.7 | 73.9 65% | 70.6 58% | 41.8 -6% | 73.8 65% |
| Response Times | -77% | -42% | -31% | -84% | |
| Response Time Grey 50% / Grey 80% * | 30.1 ? | 58.1 ? -93% | 53.4 ? -77% | 35.3 ? -17% | 60 ? -99% |
| Response Time Black / White * | 20.5 ? | 32.7 ? -60% | 21.8 ? -6% | 29.8 ? -45% | 34.7 ? -69% |
| PWM Frequency | |||||
| Screen | 42% | 53% | 26% | 60% | |
| Brightness middle | 286 | 430 50% | 501 75% | 292.6 2% | 402 41% |
| Brightness | 270 | 409 51% | 464 72% | 270 0% | 404 50% |
| Brightness Distribution | 88 | 88 0% | 87 -1% | 88 0% | 89 1% |
| Black Level * | 0.26 | 0.31 -19% | 0.26 -0% | 0.19 27% | 0.16 38% |
| Contrast | 1100 | 1387 26% | 1927 75% | 1540 40% | 2513 128% |
| Colorchecker dE 2000 * | 7.2 | 2.4 67% | 2.64 63% | 4.63 36% | 2.2 69% |
| Colorchecker dE 2000 max. * | 21.7 | 4.7 78% | 5.06 77% | 17.1 21% | 4.2 81% |
| Colorchecker dE 2000 calibrated * | 4.7 | 1.4 70% | 1.57 67% | 2.13 55% | 1.3 72% |
| Greyscale dE 2000 * | 7.2 | 3 58% | 3.8 47% | 3.2 56% | 3 58% |
| Gamma | 2.04 108% | 2.3 96% | 2.103 105% | 2.34 94% | 2.18 101% |
| CCT | 6118 106% | 6489 100% | 6562 99% | 7184 90% | 6801 96% |
| Total Average (Program / Settings) | 9% /
30% | 22% /
40% | -4% /
11% | 13% /
40% |
* ... smaller is better
这种廉价面板的另一个弱点是色域覆盖率低。这种屏幕不适合处理色彩，也不适合用于多媒体，因为色彩也缺乏深度。
LED 背光也不是特别强，因此 ThinkPad L14 G4 不适合户外使用。
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 20.5 ms ... rise ↗ and fall ↘ combined | ↗ 11.4 ms rise |  |
| ↘ 9.1 ms fall | ||
| The screen shows good response rates in our tests, but may be too slow for competitive gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 42 % of all devices are better. This means that the measured response time is similar to the average of all tested devices (20.9 ms). | ||
| ↔ Response Time 50% Grey to 80% Grey | ||
| 30.1 ms ... rise ↗ and fall ↘ combined | ↗ 14.2 ms rise |  |
| ↘ 15.9 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. » 37 % of all devices are better. This means that the measured response time is similar to the average of all tested devices (32.8 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 8706 (minimum: 5 - maximum: 343500) Hz was measured. | |||
性能：办公室战士速度不快
联想提供了多种不同的处理器选择，它们都源自 Raptor Lake 处理器。与 T 系列不同的是，用户可以选择经济实惠的选项，如 英特尔 U300以及 i3 CPU。 英特尔酷睿 i7-1370P是最顶级的选择。有了 英特尔酷睿 3 100U，英特尔酷睿 1 系列 CPU 已进入 L14 G4，但该芯片也基于 Raptor Lake。
至于 GPU，选择就比较有限了，因为大部分都是同一英特尔 iGPU 的不同版本： 英特尔UHD Graphics, Iris Xe（80EUs） 和 Iris Xe (96EUs)以及 英特尔图形酷睿 3 100U 的英特尔图形处理器都属于这一类。Nvidia 英伟达GeForce MX550是一种可选的专用图形处理器，但不在欧洲市场销售。
M.2 2242 SSD 最大存储容量为 2 TB。在内存方面，上限为 64 GB DDR4-3200，提供两个 SO-DIMM。
测试条件
通过 Windows 设置可以设置以下不同功率限制的性能模式（PL1 = 负载下的性能，PL2 = 短时间内的性能）：
- 最佳电池使用时间：PL1 10 W / PL2 20 W
- 平衡：12.5 W / 35 W
- 最佳性能：PL1 15 W / PL2 45 W
处理器
英特尔 英特尔酷睿 i5-1335U是一款拥有十个内核的处理器，其中两个 P 内核的时钟频率在 1.3 至 4.6 GHz 之间，八个 E 内核的时钟频率在 0.9 至 3.4 GHz 之间。作为 Raptor Lake U 芯片，英特尔计划将该芯片的 TDP 控制在 15 到 30 W 之间。 CPU 列表可用于详细的性能比较。
在低功耗限制下，联想 ThinkPad L14 Gen 4 的性能在预期范围内。它足以满足办公需求，但这款机型并不是性能冠军。搭载 AMD Ryzen 5 Pro 7530U 的 AMD 版 ThinkPad 在多核负载下速度更快，但在单核基准测试中表现不佳。
在电池模式下，联想限制了 CPU 的性能。在 Cinebench R23 多核测试中，ThinkPad 仅达到 6000 分，而不是 9000 分。
Cinebench R15 Multi loop
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 6.3: Multi-Core | Single-Core
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 | |
| Average of class Office | |
| Average Intel Core i5-1335U | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Lenovo ThinkPad L14 G4 21H6S00900 -2! | |
| Dell Latitude 3440 -2! | |
| HP ProBook 445 G10 | |
| SCHENKER Work 14 Base | |
| Cinebench R23 / Multi Core | |
| Average of class Office (1577 - 15743, n=92, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average Intel Core i5-1335U (6957 - 9438, n=12) | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| HP ProBook 445 G10 | |
| Dell Latitude 3440 | |
| SCHENKER Work 14 Base | |
| Cinebench R23 / Single Core | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average Intel Core i5-1335U (1532 - 1733, n=12) | |
| SCHENKER Work 14 Base | |
| Average of class Office (618 - 1995, n=92, last 2 years) | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Cinebench R20 / CPU (Multi Core) | |
| Average of class Office (590 - 5980, n=91, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Average Intel Core i5-1335U (2602 - 3849, n=11) | |
| HP ProBook 445 G10 | |
| Dell Latitude 3440 | |
| SCHENKER Work 14 Base | |
| Cinebench R20 / CPU (Single Core) | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average Intel Core i5-1335U (593 - 663, n=11) | |
| SCHENKER Work 14 Base | |
| Average of class Office (229 - 766, n=91, last 2 years) | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Cinebench R15 / CPU Multi 64Bit | |
| Average of class Office (246 - 2642, n=94, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average Intel Core i5-1335U (1109 - 1547, n=11) | |
| HP ProBook 445 G10 | |
| Dell Latitude 3440 | |
| SCHENKER Work 14 Base | |
| Cinebench R15 / CPU Single 64Bit | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Dell Latitude 3440 | |
| Average Intel Core i5-1335U (222 - 248, n=11) | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Average of class Office (98 - 284, n=93, last 2 years) | |
| SCHENKER Work 14 Base | |
| Blender / v2.79 BMW27 CPU | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| Average Intel Core i5-1335U (340 - 786, n=12) | |
| Average of class Office (208 - 1956, n=93, last 2 years) | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| HP ProBook 445 G10 | |
| 7-Zip 18.03 / 7z b 4 | |
| Average of class Office (7532 - 65460, n=94, last 2 years) | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average Intel Core i5-1335U (25012 - 38513, n=11) | |
| SCHENKER Work 14 Base | |
| 7-Zip 18.03 / 7z b 4 -mmt1 | |
| Dell Latitude 3440 | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Average of class Office (2972 - 6687, n=93, last 2 years) | |
| SCHENKER Work 14 Base | |
| Average Intel Core i5-1335U (4872 - 5545, n=11) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Geekbench 6.3 / Multi-Core | |
| Average of class Office (662 - 14767, n=66, last 2 years) | |
| Average Intel Core i5-1335U (6604 - 9282, n=8) | |
| SCHENKER Work 14 Base | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| HP ProBook 445 G10 | |
| Geekbench 6.3 / Single-Core | |
| Average Intel Core i5-1335U (2236 - 2379, n=7) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average of class Office (457 - 2769, n=65, last 2 years) | |
| SCHENKER Work 14 Base | |
| HP ProBook 445 G10 | |
| Geekbench 5.5 / Multi-Core | |
| Average of class Office (1018 - 11980, n=93, last 2 years) | |
| Average Intel Core i5-1335U (5459 - 8618, n=11) | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Geekbench 5.5 / Single-Core | |
| Dell Latitude 3440 | |
| Average Intel Core i5-1335U (1506 - 1700, n=11) | |
| SCHENKER Work 14 Base | |
| Average of class Office (510 - 1995, n=94, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| HWBOT x265 Benchmark v2.2 / 4k Preset | |
| Average of class Office (1.72 - 18.7, n=91, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| HP ProBook 445 G10 | |
| Average Intel Core i5-1335U (6.55 - 10.7, n=11) | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| LibreOffice / 20 Documents To PDF | |
| HP ProBook 445 G10 | |
| Average of class Office (31.3 - 129.6, n=91, last 2 years) | |
| Average Intel Core i5-1335U (45 - 58.7, n=11) | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| R Benchmark 2.5 / Overall mean | |
| Average of class Office (0.4244 - 1.135, n=90, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| Average Intel Core i5-1335U (0.4892 - 0.524, n=10) | |
| Dell Latitude 3440 | |
* ... 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 | |
| Average of class Office | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| HP ProBook 445 G10 | |
| Average Intel Core i5-1335U | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| AIDA64 / FP32 Ray-Trace | |
| Average of class Office (763 - 24250, n=92, last 2 years) | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Dell Latitude 3440 | |
| Average Intel Core i5-1335U (5661 - 7809, n=11) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| AIDA64 / FPU Julia | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| HP ProBook 445 G10 | |
| Average of class Office (4113 - 102228, n=92, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average Intel Core i5-1335U (29483 - 43636, n=11) | |
| Dell Latitude 3440 | |
| SCHENKER Work 14 Base | |
| AIDA64 / CPU SHA3 | |
| Average of class Office (287 - 4551, n=92, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| HP ProBook 445 G10 | |
| Dell Latitude 3440 | |
| Average Intel Core i5-1335U (1515 - 2278, n=11) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| AIDA64 / CPU Queen | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| HP ProBook 445 G10 | |
| Average of class Office (8185 - 115197, n=92, last 2 years) | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average Intel Core i5-1335U (53839 - 60992, n=11) | |
| SCHENKER Work 14 Base | |
| AIDA64 / FPU SinJulia | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Average of class Office (404 - 14288, n=92, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Dell Latitude 3440 | |
| Average Intel Core i5-1335U (3873 - 5008, n=11) | |
| SCHENKER Work 14 Base | |
| AIDA64 / FPU Mandel | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| HP ProBook 445 G10 | |
| Average of class Office (2075 - 54365, n=92, last 2 years) | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average Intel Core i5-1335U (14376 - 20553, n=11) | |
| SCHENKER Work 14 Base | |
| AIDA64 / CPU AES | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Average of class Office (7254 - 155900, n=92, last 2 years) | |
| Average Intel Core i5-1335U (31154 - 65997, n=11) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Dell Latitude 3440 | |
| HP ProBook 445 G10 | |
| SCHENKER Work 14 Base | |
| AIDA64 / CPU ZLib | |
| Average of class Office (78 - 1018, n=92, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Dell Latitude 3440 | |
| Average Intel Core i5-1335U (378 - 676, n=11) | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| SCHENKER Work 14 Base | |
| AIDA64 / FP64 Ray-Trace | |
| Average of class Office (432 - 12755, n=92, last 2 years) | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average Intel Core i5-1335U (2878 - 4214, n=11) | |
| SCHENKER Work 14 Base | |
| AIDA64 / CPU PhotoWorxx | |
| Average Intel Core i5-1335U (13584 - 41123, n=11) | |
| Average of class Office (4814 - 54971, n=92, last 2 years) | |
| SCHENKER Work 14 Base | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
系统性能
对于日常使用或合成基准测试中的系统性能，我们没有什么可批评的。
CrossMark: Overall | Productivity | Creativity | Responsiveness
WebXPRT 3: Overall
WebXPRT 4: Overall
Mozilla Kraken 1.1: Total
| PCMark 10 / Score | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| HP ProBook 445 G10 | |
| Average of class Office (2463 - 7344, n=85, last 2 years) | |
| Average Intel Core i5-1335U, Intel Iris Xe Graphics G7 80EUs (5068 - 5600, n=11) | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| PCMark 10 / Essentials | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Dell Latitude 3440 | |
| Average Intel Core i5-1335U, Intel Iris Xe Graphics G7 80EUs (9828 - 11912, n=11) | |
| HP ProBook 445 G10 | |
| Average of class Office (5575 - 20841, n=85, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| PCMark 10 / Productivity | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Average of class Office (3041 - 10415, n=85, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average Intel Core i5-1335U, Intel Iris Xe Graphics G7 80EUs (6196 - 7261, n=11) | |
| Dell Latitude 3440 | |
| SCHENKER Work 14 Base | |
| PCMark 10 / Digital Content Creation | |
| Average of class Office (2049 - 9773, n=85, last 2 years) | |
| Average Intel Core i5-1335U, Intel Iris Xe Graphics G7 80EUs (5361 - 6164, n=11) | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| HP ProBook 445 G10 | |
| CrossMark / Overall | |
| Average Intel Core i5-1335U, Intel Iris Xe Graphics G7 80EUs (1339 - 1599, n=11) | |
| Dell Latitude 3440 | |
| Average of class Office (348 - 1891, n=87, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| CrossMark / Productivity | |
| Average Intel Core i5-1335U, Intel Iris Xe Graphics G7 80EUs (1337 - 1638, n=11) | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average of class Office (393 - 1870, n=87, last 2 years) | |
| SCHENKER Work 14 Base | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| CrossMark / Creativity | |
| Average Intel Core i5-1335U, Intel Iris Xe Graphics G7 80EUs (1315 - 1620, n=11) | |
| Dell Latitude 3440 | |
| Average of class Office (340 - 1982, n=87, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| CrossMark / Responsiveness | |
| Average Intel Core i5-1335U, Intel Iris Xe Graphics G7 80EUs (1023 - 1868, n=11) | |
| Average of class Office (258 - 2017, n=87, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Dell Latitude 3440 | |
| SCHENKER Work 14 Base | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| WebXPRT 3 / Overall | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average of class Office (121 - 455, n=85, last 2 years) | |
| Average Intel Core i5-1335U, Intel Iris Xe Graphics G7 80EUs (212 - 270, n=9) | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| SCHENKER Work 14 Base | |
| WebXPRT 4 / Overall | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Average Intel Core i5-1335U, Intel Iris Xe Graphics G7 80EUs (195.6 - 238, n=7) | |
| Average of class Office (80 - 328, n=85, last 2 years) | |
| SCHENKER Work 14 Base | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Mozilla Kraken 1.1 / Total | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Average of class Office (404 - 1966, n=93, last 2 years) | |
| Average Intel Core i5-1335U, Intel Iris Xe Graphics G7 80EUs (545 - 1914, n=12) | |
| SCHENKER Work 14 Base | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Dell Latitude 3440 | |
* ... smaller is better
| PCMark 10 Score | 5147 points | |
Help | ||
| AIDA64 / Memory Copy | |
| Average of class Office (7158 - 108783, n=93, last 2 years) | |
| Average Intel Core i5-1335U (22417 - 60884, n=11) | |
| SCHENKER Work 14 Base | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| AIDA64 / Memory Read | |
| Average of class Office (7325 - 127282, n=93, last 2 years) | |
| SCHENKER Work 14 Base | |
| Average Intel Core i5-1335U (23104 - 61555, n=11) | |
| Dell Latitude 3440 | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| AIDA64 / Memory Write | |
| Average of class Office (7579 - 117935, n=93, last 2 years) | |
| Average Intel Core i5-1335U (22936 - 72584, n=11) | |
| SCHENKER Work 14 Base | |
| Dell Latitude 3440 | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| AIDA64 / Memory Latency | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Average of class Office (6.9 - 185.2, n=92, last 2 years) | |
| Average Intel Core i5-1335U (78.6 - 112.8, n=11) | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| SCHENKER Work 14 Base | |
| Dell Latitude 3440 | |
* ... smaller is better
DPC 延迟
DPC 延迟时间低于竞争对手。尽管如此，联想 ThinkPad L14 Gen 4 英特尔版在使用音频时还是存在一些问题。联想可以通过更新驱动程序轻松解决这个问题。
| DPC Latencies / LatencyMon - interrupt to process latency (max), Web, Youtube, Prime95 | |
| SCHENKER Work 14 Base | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
* ... smaller is better
存储
西部数据的 M.2 2242 SSD 容量为 512 GB。在性能对比中，这款 PCIe NVMe 4.0 闪存是速度较快的闪存之一，这有助于联想 ThinkPad L14 Gen 4 Intel 在日常使用中实现不错的速度。
* ... smaller is better
Sustained performance loop read: DiskSpd Read Loop, Queue Depth 8
GPU
在 GPU 基准测试中，联想 ThinkPad L14 Gen 4 只能获得低于平均水平的性能分数，这并不奇怪。无论如何，这台笔记本电脑配备的 80 EU iGPU Iris Xe 并不是最快的 GPU，而且还受到单通道内存的限制。对于简单的办公任务来说，GPU 的速度已经足够快了。其他工作最好使用其他设备。对于长时间工作后的游戏，L14 G4 Intel 绝对不是一款合适的笔记本电脑。
| 3DMark Performance Rating - Percent | |
| Average of class Office | |
| Average Intel Iris Xe Graphics G7 80EUs | |
| SCHENKER Work 14 Base -1! | |
| Dell Latitude 3440 -1! | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| HP ProBook 445 G10 -1! | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| 3DMark 11 Performance | 4989 points | |
| 3DMark Cloud Gate Standard Score | 15150 points | |
| 3DMark Fire Strike Score | 2487 points | |
| 3DMark Time Spy Score | 1086 points | |
Help | ||
* ... smaller is better
| Performance Rating - Percent | |
| Average of class Office | |
| Dell Latitude 3440 | |
| SCHENKER Work 14 Base | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H1003DGE -1! | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| The Witcher 3 - 1920x1080 Ultra Graphics & Postprocessing (HBAO+) | |
| Average of class Office (3.8 - 34, n=73, last 2 years) | |
| HP ProBook 445 G10 | |
| Dell Latitude 3440 | |
| SCHENKER Work 14 Base | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| GTA V - 1920x1080 Highest Settings possible AA:4xMSAA + FX AF:16x | |
| Average of class Office (3.35 - 47.8, n=78, last 2 years) | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| SCHENKER Work 14 Base | |
| HP ProBook 445 G10 | |
| Dell Latitude 3440 | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| Final Fantasy XV Benchmark - 1920x1080 High Quality | |
| Average of class Office (4.18 - 35.7, n=86, last 2 years) | |
| Dell Latitude 3440 | |
| SCHENKER Work 14 Base | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Strange Brigade - 1920x1080 ultra AA:ultra AF:16 | |
| Average of class Office (9.6 - 56.5, n=70, last 2 years) | |
| Dell Latitude 3440 | |
| SCHENKER Work 14 Base | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| Dota 2 Reborn - 1920x1080 ultra (3/3) best looking | |
| Average of class Office (13.4 - 121.2, n=94, last 2 years) | |
| Dell Latitude 3440 | |
| SCHENKER Work 14 Base | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| X-Plane 11.11 - 1920x1080 high (fps_test=3) | |
| Average of class Office (8.88 - 92.6, n=90, last 2 years) | |
| Dell Latitude 3440 | |
| HP ProBook 445 G10 | |
| Lenovo ThinkPad L14 G4 21H6S00900 | |
| SCHENKER Work 14 Base | |
| Lenovo ThinkPad L14 G4 21H1003DGE | |
Witcher 3 FPS diagram
| low | med. | high | ultra | |
|---|---|---|---|---|
| GTA V (2015) | 57.5 | 50.5 | 9.85 | 4.33 |
| The Witcher 3 (2015) | 55 | 34.5 | 16.7 | 8.55 |
| Dota 2 Reborn (2015) | 92.4 | 64.1 | 39.7 | 36.8 |
| Final Fantasy XV Benchmark (2018) | 24.7 | 13.5 | 9.59 | |
| X-Plane 11.11 (2018) | 31.5 | 22 | 20.6 | |
| F1 23 (2023) | 24.8 | 22.8 | 16.3 | |
| Baldur's Gate 3 (2023) | 12.3 | 9.41 | 8.17 | 7.96 |
| Cyberpunk 2077 2.1 Phantom Liberty (2023) | 11.5 | 9.32 | 7.59 | 6.65 |
排放与能源：ThinkPad L14 G4 大部分时间保持静音
噪音
ThinkPad 在空转或平均负载（配置文件：平衡）时保持安静。只有在压力测试期间的性能模式（配置文件：最佳性能）下，L14 G4 Intel 的风扇才会打开。即使在这种情况下，它的声音也不会特别大，只有 32 分贝（a）。
我们确实检测到了一些线圈啸叫。但几乎听不到，只有将耳朵贴在键盘上时才能听到。
Noise Level
| Idle |
| 24.1 / 24.1 / 24.1 dB(A) |
| Load |
| 24.1 / 32.8 dB(A) |
 | ||
30 dB silent 40 dB(A) audible 50 dB(A) loud |
||
min:  , med:  , max:  Earthworks M23R, Arta (15 cm distance) environment noise: 24.1 dB(A) | ||
| Lenovo ThinkPad L14 G4 21H1003DGE Iris Xe G7 80EUs, i5-1335U, WD PC SN740 512GB SDDQMQD-512G | Lenovo ThinkPad L14 G4 21H6S00900 Vega 7, R5 7530U, Kioxia BG5 KBG5AZNT512G | HP ProBook 445 G10 Vega 7, R5 7530U, Kioxia BG5 KBG50ZNS512G | Dell Latitude 3440 Iris Xe G7 80EUs, i5-1345U, Samsung PM9A1 MZVL2512HCJQ | SCHENKER Work 14 Base Iris Xe G7 80EUs, i5-1235U, Samsung SSD 980 500GB (MZ-V8V500BW) | |
|---|---|---|---|---|---|
| Noise | -13% | -12% | -15% | -12% | |
| off / environment * | 24.1 | 25.2 -5% | 24 -0% | 23.9 1% | 23.6 2% |
| Idle Minimum * | 24.1 | 25.2 -5% | 24 -0% | 24.4 -1% | 23.6 2% |
| Idle Average * | 24.1 | 25.2 -5% | 25 -4% | 24.4 -1% | 23.6 2% |
| Idle Maximum * | 24.1 | 27.3 -13% | 28 -16% | 24.4 -1% | 24.8 -3% |
| Load Average * | 24.1 | 32.1 -33% | 33 -37% | 37.1 -54% | 34.2 -42% |
| Witcher 3 ultra * | 30.8 | 35.7 -16% | 36 -17% | 38.2 -24% | 34.2 -11% |
| Load Maximum * | 32.8 | 38.3 -17% | 36 -10% | 40.2 -23% | 42.9 -31% |
* ... smaller is better
热量
ThinkPad 笔记本电脑的性能并不出色。好的一面是，发热量得到了控制。最高温度为 45.5 摄氏度/114 华氏度，机箱温度并不高。
在 Prime95 和 FurMark 的压力测试中，我们没有发现任何节流现象。
(+) The maximum temperature on the upper side is 39.8 °C / 104 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 45.5 °C / 114 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 25.8 °C / 78 F, compared to the device average of 29.5 °C / 85 F.
(+) Playing The Witcher 3, the average temperature for the upper side is 31.3 °C / 88 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 29.3 °C / 84.7 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 27.6 °C / 81.7 F (-1.7 °C / -3 F).
| Lenovo ThinkPad L14 G4 21H1003DGE Intel Core i5-1335U, Intel Iris Xe Graphics G7 80EUs | Lenovo ThinkPad L14 G4 21H6S00900 AMD Ryzen 5 7530U, AMD Radeon RX Vega 7 | HP ProBook 445 G10 AMD Ryzen 5 7530U, AMD Radeon RX Vega 7 | Dell Latitude 3440 Intel Core i5-1345U, Intel Iris Xe Graphics G7 80EUs | SCHENKER Work 14 Base Intel Core i5-1235U, Intel Iris Xe Graphics G7 80EUs | |
|---|---|---|---|---|---|
| Heat | -9% | -7% | -1% | 7% | |
| Maximum Upper Side * | 39.8 | 39 2% | 43 -8% | 35.2 12% | 39.2 2% |
| Maximum Bottom * | 45.5 | 46.3 -2% | 51 -12% | 41 10% | 40.4 11% |
| Idle Upper Side * | 27.1 | 26.3 3% | 27 -0% | 29.8 -10% | 25.3 7% |
| Idle Bottom * | 27.4 | 37.5 -37% | 30 -9% | 32 -17% | 25.8 6% |
* ... smaller is better
发言人
联想 ThinkPad L14 Gen 4 的立体声扬声器面向用户，因为联想将其置于键盘上方。但它们的声音仍然太小，而且缺乏底座，因此外置扬声器和耳机很容易成为选择。
Lenovo ThinkPad L14 G4 21H1003DGE audio analysis
(±) | speaker loudness is average but good (75.6 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 21.2% lower than median
(±) | linearity of bass is average (10.6% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 5.4% higher than median
(±) | linearity of mids is average (7% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 1.5% away from median
(+) | highs are linear (4.2% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (19.5% difference to median)
Compared to same class
» 36% of all tested devices in this class were better, 7% similar, 57% worse
» The best had a delta of 7%, average was 21%, 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 ProBook 445 G10 audio analysis
(±) | speaker loudness is average but good (76 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 28.2% lower than median
(±) | linearity of bass is average (10.9% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.3% away from median
(+) | mids are linear (5.3% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.6% higher than median
(+) | highs are linear (4.8% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (23.9% difference to median)
Compared to same class
» 66% of all tested devices in this class were better, 10% similar, 24% worse
» The best had a delta of 7%, average was 21%, worst was 53%
Compared to all devices tested
» 69% of all tested devices were better, 7% similar, 24% worse
» The best had a delta of 4%, average was 25%, worst was 134%
耗电量
对于像联想 ThinkPad L14 Gen 4 Intel 这样的办公系统来说，4.1 W 的最低功耗太高了。通常情况下，使用节能 CPU 且没有 dGPU 或高分辨率屏幕等功能的机型应该更加高效。
由于充电器的输出功率高达 65 W，68.3 W 的最大耗电量可能是个问题。不过，由于耗电量下降很快，在使用设备时电池应该不会放电。
| Off / Standby | 0.37 / 0.7 Watt |
| Idle | 4.1 / 5.9 / 6.8 Watt |
| Load |
41.3 / 68.3 Watt |
   
| |
Key:
min: ,
med: ,
max: Metrahit Energy | |
Power consumption Witcher 3 / stress test
Power consumption with external monitor
电池寿命
由于耗电量大，联想 ThinkPad L14 G4 Intel 的电池续航时间低于平均水平并不令人感到意外。不过，令人失望的是，在 Wi-Fi 测试（150 cd/m²）中，联想的 57 Wh 电池的续航时间未能超过 8 小时。
| Lenovo ThinkPad L14 G4 21H1003DGE i5-1335U, Iris Xe G7 80EUs, 57 Wh | Lenovo ThinkPad L14 G4 21H6S00900 R5 7530U, Vega 7, 57 Wh | HP ProBook 445 G10 R5 7530U, Vega 7, 42 Wh | Dell Latitude 3440 i5-1345U, Iris Xe G7 80EUs, 54 Wh | SCHENKER Work 14 Base i5-1235U, Iris Xe G7 80EUs, 49 Wh | Average of class Office | |
|---|---|---|---|---|---|---|
| Battery Runtime | 9% | 9% | 2% | -12% | 6% | |
| WiFi v1.3 | 520 | 814 57% | 568 9% | 528 2% | 458 -12% | 611 ? 18% |
| Load | 125 | 76 -39% | 116.7 ? -7% |
Pros
Cons
结论：ThinkPad L14 G4 是一款可靠但过时的办公设备
联想 ThinkPad L14 Gen 4 是典型办公人员的可靠选择，但仅此而已。从很多方面都可以看出，无论是设计还是组件，这款系统都不是最新的硬件。
对我们来说，这与处理器的关系不大，而更多的是与屏幕等方面有关。16:9 的屏幕格式在笔记本电脑中已经过时，屏幕质量也低于平均水平。此外，电池续航时间令人失望，性能也没有什么特别之处。至少，输入设备非常好，连接选项也很不错，而且设备工作时没有很大的风扇噪音。
ThinkPad L14 G4 英特尔版在两个方面堪称猛禽：它使用的是 Raptor Lake，而且在屏幕格式方面是个 "恐龙"。硬件的过时确实给这款原本性能稳定的办公笔记本电脑带来了负面影响。
如果 ThinkPad L14 G4 英特尔版有较大折扣，那么这款设备可以成为一款可靠的办公笔记本电脑，尤其是对于学生而言。否则，最好还是换一款笔记本电脑--也许是配备 AMD CPU 的联想 ThinkPad L14 G5，我们将很快对其进行测试。惠普 HP ProBook 445 G10也是不错的选择。
定价和可用性
联想 ThinkPad L14 Gen 4 Intel 在德国的售价为 762 欧元。亚马逊在美国的售价为 1,200 美元。
Lenovo ThinkPad L14 G4 21H1003DGE
- 06/24/2024 v8
Benjamin Herzig
Total Sustainability Score: 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.
This is how Notebookcheck is testing
Every year, Notebookcheck independently reviews hundreds of laptops and smartphones using standardized procedures to ensure that all results are comparable. We have continuously developed our test methods for around 20 years and set industry standards in the process. In our test labs, high-quality measuring equipment is utilized by experienced technicians and editors. These tests involve a multi-stage validation process. Our complex rating system is based on hundreds of well-founded measurements and benchmarks, which maintains objectivity. Further information on our test methods can be found here.
Price comparison
