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Magyar联想ThinkPad L14第二代AMD笔记本电脑评测。可升级性符合AMD Ryzen 5000
在公众印象中，联想的ThinkPad L系列在某种程度上被其他ThinkPad系列掩盖了。这并不是巧合。经济型的ThinkPad L系列主要是为大型企业客户设计的；消费者用户在这里显然只是次要的。因此，第二个预算系列，即ThinkPad E系列，是私人客户的首选。如果想要更高的质量，受欢迎的联想ThinkPad T系列是这种情况下的明显选择。
然而，这并不意味着ThinkPad L系列完全没有兴趣。特别是现在，联想在T系列上部分焊接了内存，而且L系列也可以使用AMD Ryzen CPU，ThinkPad L15和我们现在的评测单元--联想ThinkPad L14 Gen 2 AMD，正在吸引更多的关注。ThinkPad L14 Gen 2也是我们可以评测的首批配备Zen 3 CPU（Cezanne）的2021款ThinkPad之一。
Possible contenders in comparison
Rating | Date | Model | Weight | Height | Size | Resolution | Price |
|---|---|---|---|---|---|---|---|
| 86.1 % v7 (old) | 08 / 2021 | Lenovo ThinkPad L14 G2 AMD R7 PRO 5850U, Vega 8 | 1.7 kg | 20.4 mm | 14.00" | 1920x1080 | |
| 85 % v7 (old) | Lenovo ThinkPad L14-20U50003GE R5 4500U, Vega 6 | 1.7 kg | 20.4 mm | 14.00" | 1920x1080 | ||
| 88.1 % v7 (old) | Lenovo ThinkPad T14 Gen2-20W1S00000 i7-1165G7, GeForce MX450 | 1.5 kg | 17.9 mm | 14.00" | 1920x1080 | ||
| 86.7 % v7 (old) | 08 / 2021 | Lenovo ThinkPad E14 G3-20Y7003SGE R5 5500U, Vega 7 | 1.6 kg | 17.9 mm | 14.00" | 1920x1080 | |
| 82.6 % v7 (old) | 02 / 2021 | Dell Latitude 14 5411-WJ40N i7-10850H, GeForce MX250 | 1.5 kg | 21 mm | 14.00" | 1920x1080 | |
| 83.3 % v7 (old) | 06 / 2021 | HP ProBook 440 G8-2W1G4EA i7-1165G7, Iris Xe G7 96EUs | 1.4 kg | 19 mm | 14.00" | 1920x1080 |
外壳：ThinkPad L14第二代，采用镁合金强化塑料
自2015年的ThinkPad L450，配备14英寸显示屏的ThinkPad L系列的外部设计，大体上只做了些许修改。联想ThinkPad L14第二代与L14 2020 ；它是一款传统的ThinkPad，贯穿始终。黑色的盒子上有银色的金属铰链，盖子和掌托上有银色的ThinkPad标志，键盘上有红色的TrackPoint--以及TrackPoint按钮上的红色条纹。
ThinkPad L14第二代在结构和材料方面也是一个经典。L系列的外壳传统上是由简单的PC/ABS塑料制成的，ThinkPad L14 Gen 2也是如此。与老款L型ThinkPad相比，有一些新的东西。盖子和掌托都有涂层。你仍然可以在底面和显示屏边框上找到粗糙的塑料。
从L14 Gen 1开始，ThinkPad的内部已经集成了一个镁质框架。过去，这种加固的外壳一直是T系列的专利。仍然有一个区别。在L14中，只有机箱的后三分之二是用镁加固的；掌托并没有用镁支撑。幸运的是，它无论如何都不能被压住，就像键盘一样。基本单元也很难被扭动--但不幸的是，塑料显示屏盖可以。甚至当你打开它时，也有明显的弯曲。
铰链也不是弱点。虽然你不能用一根手指打开显示器，但它可以折回到180度的开放角度。塑料盖子只有在有振动的情况下才会轻微晃动。
对于联想ThinkPad L系列来说，这绝对是一个必须要做的权衡。在目前所有的14英寸ThinkPad中，L14 Gen 2是机箱最厚、最重的型号。此外，它比T系列和E系列ThinkPad的长度和宽度都很小--LCD下面的显示屏边框在L14上是巨大的。与戴尔Latitude 5411 和惠普ProBook 440 G8 相比，这种差异更加明显。无论如何，最大的移动性并不是ThinkPad L14第二代的重点。
ThinkPad L14第二代AMD的连接性：广泛的端口和良好的可维护性
L14和L15 Gen 2是首批配备Thunderbolt 4的L系列机型--但不是AMD的变种。我们的ThinkPad L14 Gen 2不得不使用普通的USB-C端口。除此之外，还有广泛的连接，几乎所有今天仍然需要的传统端口都有。我们唯一希望看到的是一个全尺寸的SD卡读卡器。端口的位置值得批评--左边的RJ45端口和右边的3.5毫米输出口被放在相当远的前面。
SD卡阅读器
联想放在ThinkPad L14第二代左侧的microSD读卡器在使用AV Pro V60参考卡时取得了平均成绩。戴尔用Latitude 5411展示了如何做得更好，作为该领域唯一的商务笔记本电脑，它的速度比平均水平快。
| SD Card Reader | |
| average JPG Copy Test (av. of 3 runs) | |
| Dell Latitude 14 5411-WJ40N (Toshiba Exceria Pro M501 microSDXC 64GB) | |
| HP ProBook 440 G8-2W1G4EA (AV PRO microSD 128 GB V60) | |
| Lenovo ThinkPad L14-20U50003GE (Toshiba Exceria Pro M501 64 GB UHS-II) | |
| Lenovo ThinkPad L14 G2 AMD (AV Pro V60) | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 (AV Pro V60) | |
| Average of class Office (22.7 - 198.5, n=35, last 2 years) | |
| maximum AS SSD Seq Read Test (1GB) | |
| Dell Latitude 14 5411-WJ40N (Toshiba Exceria Pro M501 microSDXC 64GB) | |
| HP ProBook 440 G8-2W1G4EA (AV PRO microSD 128 GB V60) | |
| Lenovo ThinkPad L14 G2 AMD (AV Pro V60) | |
| Lenovo ThinkPad L14-20U50003GE (Toshiba Exceria Pro M501 64 GB UHS-II) | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 (AV Pro V60) | |
| Average of class Office (25 - 249, n=32, last 2 years) | |
沟通
在某些情况下，你可能会忘记ThinkPad L系列是为预算领域准备的。Wi-Fi不是一个例子；我们的测试模型包括一个来自Realtek的Wi-Fi解决方案。与目前的英特尔AX芯片相比，2x2 RTL8852AE卡取得的结果很弱，最大速度为855 MB/s。与旧的AC卡相比，其优势是微不足道的；至少支持蓝牙5.2。
除了Wi-Fi模块，ThinkPad L14第二代还有一个千兆以太网芯片，也来自Realtek。此外，我们的测试设备中还安装了一个来自Quectel的WWAN模块，它支持LTE-A标准。
| Networking | |
| iperf3 transmit AX12 | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Lenovo ThinkPad L14-20U50003GE | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Average RealTek Semiconductor RTL8852AE (424 - 928, n=20) | |
| Lenovo ThinkPad L14 G2 AMD | |
| HP ProBook 440 G8-2W1G4EA | |
| iperf3 receive AX12 | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad L14-20U50003GE | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Lenovo ThinkPad L14 G2 AMD | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Average RealTek Semiconductor RTL8852AE (621 - 877, n=20) | |
| HP ProBook 440 G8-2W1G4EA | |
网络摄像头
联想ThinkPad笔记本电脑的720p网络摄像头产生的图像模糊，颜色不准确。对于视频通话来说，这已经足够好了。
安全问题
除了对WWAN的支持，安全功能是与同样价格低廉的ThinkPad E系列相比的最大区别之一。联想为L系列提供了你在ThinkPad T14中也能找到的全部待遇：智能卡读卡器、Kensington锁、指纹识别器、红外相机、ThinkShutter相机盖--商务客户在这里可能只会错过一些东西。
辅料
除了带有USB-C插头的65瓦充电器外，联想ThinkPad L14第二代的包装盒中没有其他配件。
维护
ThinkPad L14第二代是目前所有14英寸ThinkPad中拥有最多模块化设计的笔记本电脑。除了处理器之外，所有的重要部件都没有焊接--WWAN、Wi-Fi、M.2-2280固态硬盘和两个SO-DIMM内存插槽，所有的东西都是不连接的，可以升级。为了进入联想ThinkPad的内部，你显然必须先卸下底盖，这需要卸下九颗螺丝；这些螺丝仍然卡在机箱内，所以不会丢失。此外，还有一些塑料夹子，最好用塑料铲子工具一个一个地小心打开。
虽然这并不那么容易，但拆卸键盘却再容易不过了。你必须拧开底部的两颗螺丝，然后就可以拆下内部键盘。这不仅允许在该区域进行维修，而且还可以切换到其他键盘布局（例如QWERTY）。
担保
节省成本的措施：与ThinkPad T系列不同，ThinkPad L系列在销售时总是默认只提供一年的自带服务保修。延长到三到五年是可能的，还有现场服务和意外保护等附加服务--需要额外收费。
输入设备。联想笔记本电脑的强大键盘
键盘
就在去年，联想修改了ThinkPad L系列，使其拥有1.5毫米的键程。ThinkPad L14第二代的背光键盘具有完整的标准宽度，可以与ThinkPad X1 Carbon第七代或X1 Carbon第八代的键盘进行最好的比较--减少了键程，但仍是旧的键高。总的来说，这款键盘符合我们对ThinkPad键盘的高度期望。经常打字的用户会喜欢L14 Gen 2--也是因为键盘不会弯曲。镁合金的加固是绝对明显的。
触摸板
触摸板位于键盘下方，而且没有专用按钮。其表面由塑料制成--在这方面，ThinkPad L、T和E系列之间没有区别。触控板的尺寸为10×7厘米（约3.9×2.8英寸），虽然不是很宽裕，但也有足够的尺寸。总的来说，触控板可以作为下部区域的ClickPad使用，它以对鼠标指针的精确控制和高质量、有缓冲的点击机制而令人信服。触摸板也能顺利地实现手势。
联想将标志性的红色TrackPoint放在G/H/B键之间的显要位置。触摸板和键盘之间的三个按钮也属于它。按下TrackPoint可以精确而快速地移动鼠标光标，而不必将手从键盘上移开。TrackPoint优于触摸板，特别是在拖放动作方面。
联想笔记本电脑的整个显示屏很弱
与针对高端市场的昂贵的ThinkPad X1系列不同，ThinkPad L系列保留了 "旧的"、更窄的16：9格式。联想ThinkPad L14第二代的14英寸显示屏有两种不同的分辨率。所有的显示屏都是哑光的。
- 1366x768（高清），220 cd/m²，45% NTSC，TN
- 1920x1080（全高清），250 cd/m²，45 % NTSC，IPS
- 1920x1080 (Full HD), 300 cd/m², 45% NTSC, IPS, touch
- 1920x1080 (Full HD), 400 cd/m², 72% NTSC, IPS, 低功耗
安装在这个测试设备中的显示器没有辜负广告中的亮度值，因为我们测量到255 cd/m²的平均最大值。这符合经济型商务笔记本电脑的等级，与高端的T系列相比，显示出明显的差异。如果可能的话，应该选择400cd/m²的低功耗显示屏。
| |||||||||||||||||||||||||
Brightness Distribution: 86 %
Center on Battery: 278 cd/m²
Contrast: 842:1 (Black: 0.33 cd/m²)
ΔE Color 5.9 | 0.5-29.43 Ø4.93, calibrated: 4.5
ΔE Greyscale 4.1 | 0.5-98 Ø5.2
38.7% AdobeRGB 1998 (Argyll 2.2.0 3D)
56.3% sRGB (Argyll 2.2.0 3D)
37.5% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.15
| Lenovo ThinkPad L14 G2 AMD B140HAN04.0, IPS LED, 1920x1080, 14" | Lenovo ThinkPad L14-20U50003GE N140HCA-EAC, IPS, 1920x1080, 14" | Lenovo ThinkPad T14 Gen2-20W1S00000 LP140WF9-SPF2, IPS LED, 1920x1080, 14" | Lenovo ThinkPad E14 G3-20Y7003SGE NVM140FHM-N4V, IPS, 1920x1080, 14" | Dell Latitude 14 5411-WJ40N AU Optronics AUO463D, IPS, 1920x1080, 14" | HP ProBook 440 G8-2W1G4EA AU Optronics AUO818B, VA, 1920x1080, 14" | |
|---|---|---|---|---|---|---|
| Display | 12% | 70% | 7% | 0% | -1% | |
| Display P3 Coverage | 37.5 | 41.96 12% | 64.3 71% | 40.3 7% | 37.43 0% | 37.02 -1% |
| sRGB Coverage | 56.3 | 63 12% | 95.4 69% | 59.5 6% | 56.2 0% | 55.6 -1% |
| AdobeRGB 1998 Coverage | 38.7 | 43.37 12% | 65.5 69% | 41.7 8% | 38.67 0% | 38.25 -1% |
| Response Times | -16% | -31% | 10% | 30% | -14% | |
| Response Time Grey 50% / Grey 80% * | 36 ? | 42 ? -17% | 57.2 ? -59% | 35.2 ? 2% | 31 ? 14% | 43 ? -19% |
| Response Time Black / White * | 26 ? | 29.6 ? -14% | 26.4 ? -2% | 21.6 ? 17% | 14 ? 46% | 28 ? -8% |
| PWM Frequency | ||||||
| Screen | 22% | 56% | 23% | 6% | 3% | |
| Brightness middle | 278 | 259 -7% | 382 37% | 341 23% | 256 -8% | 253 -9% |
| Brightness | 255 | 244 -4% | 367 44% | 327 28% | 236 -7% | 230 -10% |
| Brightness Distribution | 86 | 92 7% | 88 2% | 90 5% | 86 0% | 82 -5% |
| Black Level * | 0.33 | 0.21 36% | 0.14 58% | 0.26 21% | 0.23 30% | 0.29 12% |
| Contrast | 842 | 1233 46% | 2729 224% | 1312 56% | 1113 32% | 872 4% |
| Colorchecker dE 2000 * | 5.9 | 4.3 27% | 4.2 29% | 5.1 14% | 5.76 2% | 5.35 9% |
| Colorchecker dE 2000 max. * | 20.2 | 17.7 12% | 7.9 61% | 17.6 13% | 20.65 -2% | 17.08 15% |
| Colorchecker dE 2000 calibrated * | 4.5 | 3.8 16% | 0.9 80% | 4.4 2% | ||
| Greyscale dE 2000 * | 4.1 | 1.5 63% | 5.4 -32% | 2.1 49% | 4 2% | 3.75 9% |
| Gamma | 2.15 102% | 2.04 108% | 2.31 95% | 2.11 104% | 2.52 87% | 2.48 89% |
| CCT | 7224 90% | 6609 98% | 7499 87% | 6755 96% | 6182 105% | 6446 101% |
| Color Space (Percent of AdobeRGB 1998) | 40 | 60.6 | 36 | 35 | ||
| Color Space (Percent of sRGB) | 62.9 | 95.4 | 56 | 55 | ||
| Total Average (Program / Settings) | 6% /
14% | 32% /
47% | 13% /
18% | 12% /
8% | -4% /
-0% |
* ... smaller is better
在我们测试过的所有经济型商务笔记本电脑中，L14 Gen 2的显示器的对比度值最低。我们用CalMAN和X-Rite i1 Pro 2测量了显示器，还用CalMAN客户端对其进行了校准。开箱后的颜色有点太冷，我们能够通过校准来改变。然而，即使在校准后，颜色也不是完全准确的，这可能是由于色彩空间覆盖率非常差。在不到60%的sRGB下，你可以忘记用ThinkPad L14 Gen 2的面板进行任何形式的图像编辑。
在户外，ThinkPad L14 2021的显示器得益于哑光表面。尽管如此，亮度并不高，实际上在非常明亮的环境中能够舒适地工作。
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 26 ms ... rise ↗ and fall ↘ combined | ↗ 15 ms rise |  |
| ↘ 11 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. » 59 % 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 | ||
| 36 ms ... rise ↗ and fall ↘ combined | ↗ 19 ms rise |  |
| ↘ 17 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. » 46 % of all devices are better. This means that the measured response time is similar to 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 8774 (minimum: 5 - maximum: 343500) Hz was measured. | |||
说到联想笔记本电脑的IPS显示屏的视角稳定性，没有什么可抱怨的。
AMD Ryzen 5000 CPU性能占优势
联想的规格表列出了ThinkPad L14第二代AMD笔记本电脑的五种处理器。AMD Ryzen 3 5400U 和Pro 5450U，Ryzen 5 5600U和Pro 5650U，以及 AMD Ryzen 7 Pro 5850U。有了这些，你可以确信，当你购买这款联想笔记本电脑时，你得到的是基于塞尚/Zen 3的处理器。Ryzen 3有四个核心，Ryzen 5有六个，而Ryzen 7有八个CPU核心。Pro "变体的设计是为了与英特尔的vPro竞争，特别为大型企业客户准备的。
集成的AMD解决方案在所有情况下都充当联想ThinkPad L14 Gen 2的GPU。L系列的一大优势。通过两个SO-DIMMs，RAM完全可以升级和替换；最大支持64GB的DDR4-3200。L14第二代AMD总是配备一个NVMe PCIe 3.0固态硬盘，格式为2242或2280。
处理器
AMD Ryzen 7 Pro 5850U是Ryzen Pro系列中用于笔记本电脑的最快处理器。Cezanne U芯片基于Zen 3架构，它具有八个内核（16个线程）。这款CPU的典型TDP为15瓦，时钟速率高达4.4GHz。你可以使用我们的CPU基准测试文章 ，将这款处理器与无数其他CPU进行比较。
凭借两根铜质热管，联想为AMD处理器分配的TDP为25瓦。该处理器可以持续保持这一消耗，所有八个核心都达到2.8GHz左右。在多核性能方面，ThinkPad L14第二代很难被击败--与Ryzen 7 Pro 4750U ，其直接前身CPU相比，这一学科的差异很小，但较新的CPU的单核性能反倒大大提升。说到单核。Tiger Lake U系列的最新英特尔CPU只在这一领域有小的优势。
没有发现CPU在电池电量上的性能下降。
Cinebench R15 Multi endurance test
Cinebench R23: Single Core | Multi Core
Cinebench R15: CPU Single 64Bit | CPU Multi 64Bit
Blender: v2.79 BMW27 CPU
7-Zip 18.03: 7z b 4 -mmt1 | 7z b 4
Geekbench 5.5: Single-Core | Multi-Core
HWBOT x265 Benchmark v2.2: 4k Preset
LibreOffice : 20 Documents To PDF
R Benchmark 2.5: Overall mean
| Cinebench R20 / CPU (Single Core) | |
| Average of class Office (229 - 764, n=101, last 2 years) | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| HP ProBook 440 G8-2W1G4EA | |
| Average AMD Ryzen 7 PRO 5850U (543 - 558, n=3) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Lenovo ThinkPad T14s-20UJS00K00 | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad L14-20U50003GE | |
| Cinebench R20 / CPU (Multi Core) | |
| Average of class Office (590 - 5980, n=101, last 2 years) | |
| Average AMD Ryzen 7 PRO 5850U (3184 - 3523, n=3) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Lenovo ThinkPad T14s-20UJS00K00 | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad L14-20U50003GE | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| HP ProBook 440 G8-2W1G4EA | |
| Cinebench R23 / Single Core | |
| Average of class Office (618 - 1995, n=101, last 2 years) | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Average AMD Ryzen 7 PRO 5850U (1401 - 1431, n=3) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Cinebench R23 / Multi Core | |
| Average of class Office (1577 - 15743, n=101, last 2 years) | |
| Average AMD Ryzen 7 PRO 5850U (8201 - 9111, n=3) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Cinebench R15 / CPU Single 64Bit | |
| Lenovo ThinkPad L14 G2 AMD | |
| Average AMD Ryzen 7 PRO 5850U (225 - 227, n=3) | |
| Average of class Office (98 - 284, n=101, last 2 years) | |
| HP ProBook 440 G8-2W1G4EA | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad T14s-20UJS00K00 | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad L14-20U50003GE | |
| Cinebench R15 / CPU Multi 64Bit | |
| Average of class Office (242 - 2642, n=102, last 2 years) | |
| Average AMD Ryzen 7 PRO 5850U (1398 - 1527, n=3) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Lenovo ThinkPad T14s-20UJS00K00 | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Lenovo ThinkPad L14-20U50003GE | |
| HP ProBook 440 G8-2W1G4EA | |
| Blender / v2.79 BMW27 CPU | |
| HP ProBook 440 G8-2W1G4EA | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Lenovo ThinkPad L14-20U50003GE | |
| Average of class Office (208 - 2248, n=103, last 2 years) | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Lenovo ThinkPad T14s-20UJS00K00 | |
| Lenovo ThinkPad L14 G2 AMD | |
| Average AMD Ryzen 7 PRO 5850U (331 - 364, n=3) | |
| 7-Zip 18.03 / 7z b 4 -mmt1 | |
| HP ProBook 440 G8-2W1G4EA | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Dell Latitude 14 5411-WJ40N | |
| Average AMD Ryzen 7 PRO 5850U (5050 - 5300, n=3) | |
| Average of class Office (2769 - 6687, n=103, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Lenovo ThinkPad T14s-20UJS00K00 | |
| Lenovo ThinkPad L14-20U50003GE | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| 7-Zip 18.03 / 7z b 4 | |
| Average AMD Ryzen 7 PRO 5850U (38553 - 45543, n=3) | |
| Lenovo ThinkPad T14s-20UJS00K00 | |
| Lenovo ThinkPad L14 G2 AMD | |
| Average of class Office (7212 - 65460, n=103, last 2 years) | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad L14-20U50003GE | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| HP ProBook 440 G8-2W1G4EA | |
| Geekbench 5.5 / Single-Core | |
| Average of class Office (510 - 1989, n=103, last 2 years) | |
| HP ProBook 440 G8-2W1G4EA | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Average AMD Ryzen 7 PRO 5850U (1354 - 1448, n=3) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Lenovo ThinkPad T14s-20UJS00K00 | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad L14-20U50003GE | |
| Geekbench 5.5 / Multi-Core | |
| Average of class Office (1018 - 11980, n=102, last 2 years) | |
| Lenovo ThinkPad T14s-20UJS00K00 | |
| Average AMD Ryzen 7 PRO 5850U (5137 - 7039, n=3) | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad L14 G2 AMD | |
| HP ProBook 440 G8-2W1G4EA | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Lenovo ThinkPad L14-20U50003GE | |
| HWBOT x265 Benchmark v2.2 / 4k Preset | |
| Average AMD Ryzen 7 PRO 5850U (9.89 - 11.6, n=3) | |
| Average of class Office (1.55 - 18.7, n=101, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Lenovo ThinkPad T14s-20UJS00K00 | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Lenovo ThinkPad L14-20U50003GE | |
| HP ProBook 440 G8-2W1G4EA | |
| LibreOffice / 20 Documents To PDF | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad L14-20U50003GE | |
| Lenovo ThinkPad T14s-20UJS00K00 | |
| HP ProBook 440 G8-2W1G4EA | |
| Average of class Office (31.3 - 129.6, n=101, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Average AMD Ryzen 7 PRO 5850U (49.1 - 51.9, n=3) | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| R Benchmark 2.5 / Overall mean | |
| Lenovo ThinkPad L14-20U50003GE | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad T14s-20UJS00K00 | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad X1 Extreme Gen3-20TLS0UV00 | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| HP ProBook 440 G8-2W1G4EA | |
| Average of class Office (0.4244 - 1.192, n=100, last 2 years) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Average AMD Ryzen 7 PRO 5850U (0.536 - 0.557, n=3) | |
* ... smaller is better
系统性能
联想ThinkPad L14第二代在PCMark 10中表现突出，这也与我们在日常使用中的印象一致。这是一款非常强大的联想笔记本电脑。
| PCMark 10 / Score | |
| Average AMD Ryzen 7 PRO 5850U, AMD Radeon RX Vega 8 (Ryzen 4000/5000) (5491 - 5933, n=3) | |
| Lenovo ThinkPad L14 G2 AMD | |
| Average of class Office (2463 - 7344, n=93, last 2 years) | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Dell Latitude 14 5411-WJ40N | |
| HP ProBook 440 G8-2W1G4EA | |
| Lenovo ThinkPad L14-20U50003GE | |
| PCMark 10 / Essentials | |
| Lenovo ThinkPad L14 G2 AMD | |
| Average of class Office (5575 - 20841, n=93, last 2 years) | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Average AMD Ryzen 7 PRO 5850U, AMD Radeon RX Vega 8 (Ryzen 4000/5000) (8772 - 10331, n=3) | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| HP ProBook 440 G8-2W1G4EA | |
| Lenovo ThinkPad L14-20U50003GE | |
| PCMark 10 / Productivity | |
| Lenovo ThinkPad L14 G2 AMD | |
| Average AMD Ryzen 7 PRO 5850U, AMD Radeon RX Vega 8 (Ryzen 4000/5000) (8967 - 9512, n=3) | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Average of class Office (3041 - 10415, n=93, last 2 years) | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad L14-20U50003GE | |
| HP ProBook 440 G8-2W1G4EA | |
| PCMark 10 / Digital Content Creation | |
| Average of class Office (1912 - 9773, n=93, last 2 years) | |
| Average AMD Ryzen 7 PRO 5850U, AMD Radeon RX Vega 8 (Ryzen 4000/5000) (5141 - 5938, n=3) | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Lenovo ThinkPad L14 G2 AMD | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| HP ProBook 440 G8-2W1G4EA | |
| Lenovo ThinkPad L14-20U50003GE | |
| Dell Latitude 14 5411-WJ40N | |
| PCMark 10 Score | 5690 points | |
Help | ||
DPC延迟
ThinkPad L14第二代没有DPC延迟的问题，因此它也可以用于实时音频应用。
| DPC Latencies / LatencyMon - interrupt to process latency (max), Web, Youtube, Prime95 | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| HP ProBook 440 G8-2W1G4EA | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad L14 G2 AMD | |
* ... smaller is better
储存
联想ThinkPad L14第二代中的SSD容量为512GB。这块M.2280固态硬盘由西部数据生产。这是一款NVMe PCIe 3.0固态硬盘，性能不错--即使有更快的固态硬盘，比如ThinkPad T14 Gen 2中的三星PM981a 。
| Lenovo ThinkPad L14 G2 AMD WDC PC SN730 SDBQNTY-512GB | Lenovo ThinkPad T14 Gen2-20W1S00000 Samsung PM981a MZVLB1T0HBLR | Lenovo ThinkPad E14 G3-20Y7003SGE SK Hynix BC711 HFM512GD3HX015N | Dell Latitude 14 5411-WJ40N SK Hynix PC611 512GB | HP ProBook 440 G8-2W1G4EA Lite-On CL1-8D512 | Lenovo ThinkPad L14-20U50003GE WDC PC SN730 SDBQNTY-512GB | Average WDC PC SN730 SDBQNTY-512GB | |
|---|---|---|---|---|---|---|---|
| AS SSD | 48% | 12% | 2% | -94% | -2% | -5% | |
| Seq Read | 2693 | 2099 -22% | 2596 -4% | 2681 0% | 1681 -38% | 2247 -17% | 2506 ? -7% |
| Seq Write | 1456 | 2485 71% | 1460 0% | 1430 -2% | 210.1 -86% | 1079 -26% | 1655 ? 14% |
| 4K Read | 41.67 | 67 61% | 48.62 17% | 49.22 18% | 24.86 -40% | 42.52 2% | 42.2 ? 1% |
| 4K Write | 138.4 | 206.1 49% | 113.4 -18% | 118 -15% | 73.6 -47% | 129.1 -7% | 127.5 ? -8% |
| 4K-64 Read | 940 | 2029 116% | 1419 51% | 1139 21% | 291.5 -69% | 1316 40% | 1061 ? 13% |
| 4K-64 Write | 1933 | 2073 7% | 1840 -5% | 1488 -23% | 135.2 -93% | 1332 -31% | 1480 ? -23% |
| Access Time Read * | 0.114 | 0.039 66% | 0.049 57% | 0.057 50% | 0.078 32% | 0.086 25% | 0.1012 ? 11% |
| Access Time Write * | 0.027 | 0.018 33% | 0.032 -19% | 0.031 -15% | 0.152 -463% | 0.029 -7% | 0.03833 ? -42% |
| Score Read | 1251 | 2306 84% | 1727 38% | 1456 16% | 484 -61% | 1583 27% | 1354 ? 8% |
| Score Write | 2217 | 2527 14% | 2099 -5% | 1749 -21% | 230 -90% | 1569 -29% | 1772 ? -20% |
| Score Total | 4052 | 6039 49% | 4658 15% | 3895 -4% | 895 -78% | 3907 -4% | 3781 ? -7% |
* ... smaller is better
Continuous load read: DiskSpd Read Loop, Queue Depth 8
图形卡
一个Vega图形芯片被集成到AMD处理器中；在这种情况下，它是AMD Radeon RX Vega 。然而，在这种情况下，AMD的GPU不能使用其全部马力。这是由内存配置造成的。由于只有一个SO-DIMM模块，RAM只能以单通道模式运行。由于iGPU没有自己的内存，它完全依赖于系统内存--单通道模式在这种情况下牺牲了很多性能。在3DMark测试中，RX Vega 8的平均性能高出14%至19%。
幸运的是，你可以通过简单地添加第二个内存模块来大幅提高性能。这也应该能稍微提高游戏性能。然而，即使使用双通道内存，AMD的GPU仍然继续是一个低端的性能。现代游戏最多只能在最低细节设置下进行。
当电源适配器没有连接时，GPU性能不会被扼杀。
| 3DMark 11 - 1280x720 Performance GPU | |
| Average of class Office (1468 - 13132, n=94, last 2 years) | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Average AMD Radeon RX Vega 8 (Ryzen 4000/5000) (3459 - 7591, n=54) | |
| HP ProBook 440 G8-2W1G4EA | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad L14 G2 AMD | |
| Lenovo ThinkPad L14-20U50003GE | |
| 3DMark | |
| 1920x1080 Fire Strike Graphics | |
| Average of class Office (712 - 9375, n=97, last 2 years) | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Dell Latitude 14 5411-WJ40N | |
| Average AMD Radeon RX Vega 8 (Ryzen 4000/5000) (1694 - 5041, n=54) | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| HP ProBook 440 G8-2W1G4EA | |
| Lenovo ThinkPad L14 G2 AMD | |
| Lenovo ThinkPad L14-20U50003GE | |
| 2560x1440 Time Spy Graphics | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Average of class Office (242 - 4109, n=97, last 2 years) | |
| Dell Latitude 14 5411-WJ40N | |
| Average AMD Radeon RX Vega 8 (Ryzen 4000/5000) (540 - 1557, n=54) | |
| HP ProBook 440 G8-2W1G4EA | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad L14 G2 AMD | |
| The Witcher 3 - 1366x768 Medium Graphics & Postprocessing | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Average of class Office (7.82 - 106.3, n=74, last 2 years) | |
| Average AMD Radeon RX Vega 8 (Ryzen 4000/5000) (19.6 - 55.2, n=35) | |
| Dell Latitude 14 5411-WJ40N | |
| HP ProBook 440 G8-2W1G4EA | |
| Lenovo ThinkPad L14 G2 AMD | |
| Dota 2 Reborn - 1366x768 med (1/3) | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Dell Latitude 14 5411-WJ40N | |
| Average AMD Radeon RX Vega 8 (Ryzen 4000/5000) (49.9 - 122.3, n=57) | |
| Average of class Office (16.4 - 146.2, n=104, last 2 years) | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad L14-20U50003GE | |
| Lenovo ThinkPad L14 G2 AMD | |
| HP ProBook 440 G8-2W1G4EA | |
| X-Plane 11.11 - 1920x1080 med (fps_test=2) | |
| Dell Latitude 14 5411-WJ40N | |
| Lenovo ThinkPad T14 Gen2-20W1S00000 | |
| Average AMD Radeon RX Vega 8 (Ryzen 4000/5000) (21.1 - 49.6, n=57) | |
| Average of class Office (10.1 - 115.3, n=101, last 2 years) | |
| Lenovo ThinkPad E14 G3-20Y7003SGE | |
| Lenovo ThinkPad L14 G2 AMD | |
| Lenovo ThinkPad L14-20U50003GE | |
| HP ProBook 440 G8-2W1G4EA | |
| 3DMark 11 Performance | 4386 points | |
| 3DMark Fire Strike Score | 2278 points | |
| 3DMark Time Spy Score | 917 points | |
Help | ||
| low | med. | high | ultra | |
|---|---|---|---|---|
| GTA V (2015) | 53.6 | 47.1 | 14.3 | 6.64 |
| The Witcher 3 (2015) | 40.5 | 25.1 | 12.5 | |
| Dota 2 Reborn (2015) | 97.5 | 66.7 | 33.5 | 31.4 |
| Final Fantasy XV Benchmark (2018) | 22.7 | 12.2 | 7.74 | |
| X-Plane 11.11 (2018) | 38.7 | 28.7 | 25.8 | |
| Strange Brigade (2018) | 45.3 | 17.6 | 15.3 | 13.3 |
| F1 2020 (2020) | 60.1 | 27.6 | 21.9 | 15.6 |
排放。Ryzen 5000保持温度和风扇噪音低
噪声排放
风扇在空闲使用时保持沉默。在中等负荷下，我们用3DMark 06进行模拟，风扇几乎听不到，只有26.81dB(A)。只有在用Prime95和FurMark进行的最大负载测试中，风扇才最终转速达到近38 dB(A)，这显然是可以听到的。然而，联想ThinkPad L14第二代的风扇需要一段时间才能达到这个音量，因为主动冷却是在数分钟内逐渐增加的。总而言之，ThinkPad笔记本电脑的噪音是非常克制的。
我们没能在L14 Gen 2中检测到线圈的啸叫。
Noise Level
| Idle |
| 25.08 / 25.08 / 25.08 dB(A) |
| Load |
| 26.81 / 37.99 dB(A) |
 | ||
30 dB silent 40 dB(A) audible 50 dB(A) loud |
||
min:  , med:  , max:  Earthworks M23R, Arta (15 cm distance) environment noise: 25.08 dB(A) | ||
温度
联想ThinkPad L14第二代外箱的温度在底部中心达到最高45.2 °C（约113 °F）。这很温暖，但并不关键。掌托始终保持凉爽，这意味着在使用联想笔记本电脑工作时不会出现手汗。
在CPU/GPU压力测试中，处理器可以持续消耗22瓦的功率。CPU温度持续在65℃（约149°F），有2.8GHz的CPU时钟速率。节流在ThinkPad L14第二代中是绝对没有问题的。
(±) The maximum temperature on the upper side is 42.1 °C / 108 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 45.2 °C / 113 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 26.5 °C / 80 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 °C / 84.2 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 (-1.3 °C / -2.3 F).
发言人
与ThinkPad T14 Gen 2 ，ThinkPad L14 Gen 2的扬声器仍然在底部。立体声扬声器对于听音乐来说相当糟糕；无论是低音还是整体音量都不足，而且高音也不是很均衡。即使是T14的扬声器，也确实不是很好，但仍有优势。
使用功能完善的3.5毫米输出口，可以达到相当好的效果。
Lenovo ThinkPad L14 G2 AMD audio analysis
(-) | not very loud speakers (70.1 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 24.5% lower than median
(±) | linearity of bass is average (11.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | reduced mids - on average 6.1% lower than median
(±) | linearity of mids is average (7.4% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 4.4% away from median
(±) | linearity of highs is average (7.3% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (27% difference to median)
Compared to same class
» 82% of all tested devices in this class were better, 6% similar, 12% worse
» The best had a delta of 7%, average was 22%, worst was 53%
Compared to all devices tested
» 80% of all tested devices were better, 4% similar, 16% worse
» The best had a delta of 4%, average was 25%, worst was 134%
Lenovo ThinkPad T14 Gen2-20W1S00000 audio analysis
(±) | speaker loudness is average but good (77.9 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 14% lower than median
(±) | linearity of bass is average (13.5% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.2% away from median
(±) | linearity of mids is average (7% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.1% away from median
(+) | highs are linear (3.9% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (13.2% difference to median)
Compared to same class
» 4% of all tested devices in this class were better, 2% similar, 94% worse
» The best had a delta of 7%, average was 22%, worst was 53%
Compared to all devices tested
» 11% of all tested devices were better, 3% similar, 86% worse
» The best had a delta of 4%, average was 25%, worst was 134%
能源管理。电池寿命是联想ThinkPad L14第二代的一个薄弱点
能源消耗
我们发现，特别是在空闲使用时，耗电率有点太高，不符合我们的口味。联想应该通过ThinkPad L14第二代的固件更新在这方面做出改进。
USB-C电源适配器可提供65瓦的功率，这远远超过了42瓦的最大消耗量。
| Off / Standby | 0.53 / 0.88 Watt |
| Idle | 5.44 / 8.06 / 9.4 Watt |
| Load |
36.06 / 42.26 Watt |
   
| |
Key:
min: ,
med: ,
max: Metrahit Energy | |
| Lenovo ThinkPad L14 G2 AMD R7 PRO 5850U, Vega 8, WDC PC SN730 SDBQNTY-512GB, IPS LED, 1920x1080, 14" | Lenovo ThinkPad L14-20U50003GE R5 4500U, Vega 6, WDC PC SN730 SDBQNTY-512GB, IPS, 1920x1080, 14" | Lenovo ThinkPad T14 Gen2-20W1S00000 i7-1165G7, GeForce MX450, Samsung PM981a MZVLB1T0HBLR, IPS LED, 1920x1080, 14" | Lenovo ThinkPad E14 G3-20Y7003SGE R5 5500U, Vega 7, SK Hynix BC711 HFM512GD3HX015N, IPS, 1920x1080, 14" | Dell Latitude 14 5411-WJ40N i7-10850H, GeForce MX250, SK Hynix PC611 512GB, IPS, 1920x1080, 14" | HP ProBook 440 G8-2W1G4EA i7-1165G7, Iris Xe G7 96EUs, Lite-On CL1-8D512, VA, 1920x1080, 14" | Average AMD Radeon RX Vega 8 (Ryzen 4000/5000) | Average of class Office | |
|---|---|---|---|---|---|---|---|---|
| Power Consumption | -1% | -28% | -11% | -53% | 19% | -12% | -7% | |
| Idle Minimum * | 5.44 | 4.4 19% | 3.8 30% | 3.5 36% | 3.1 43% | 4 26% | 5.26 ? 3% | 4.51 ? 17% |
| Idle Average * | 8.06 | 7.7 4% | 7.3 9% | 7.5 7% | 5.4 33% | 6.2 23% | 7.78 ? 3% | 7.47 ? 7% |
| Idle Maximum * | 9.4 | 8.9 5% | 11.2 -19% | 8.7 7% | 9 4% | 7.5 20% | 9.18 ? 2% | 9.11 ? 3% |
| Load Average * | 36.06 | 31.3 13% | 61.2 -70% | 43.6 -21% | 84 -133% | 34.7 4% | 44.9 ? -25% | 42.4 ? -18% |
| Witcher 3 ultra * | 26.1 | 33 -26% | 41.2 -58% | 42.2 -62% | ||||
| Load Maximum * | 42.26 | 50.6 -20% | 67.5 -60% | 55 -30% | 131 -210% | 34 20% | 59.4 ? -41% | 60.5 ? -43% |
* ... smaller is better
Energy consumption during The Witcher 3 / stress test
电池寿命
仅从容量上就可以看出：电池寿命并不是ThinkPad L14第二代的强项。内部电池的容量为45Wh，是目前14英寸ThinkPad中容量最低的一个。在Wi-Fi测试中，不到8小时的时间是一个略低于平均水平的结果，这是低容量的结果；只有惠普ProBook 440 G8使用同样大小的电池时表现得略差。
| Lenovo ThinkPad L14 G2 AMD R7 PRO 5850U, Vega 8, 45 Wh | Lenovo ThinkPad T14 Gen2-20W1S00000 i7-1165G7, GeForce MX450, 50 Wh | Lenovo ThinkPad E14 G3-20Y7003SGE R5 5500U, Vega 7, 57 Wh | Dell Latitude 14 5411-WJ40N i7-10850H, GeForce MX250, 68 Wh | HP ProBook 440 G8-2W1G4EA i7-1165G7, Iris Xe G7 96EUs, 45 Wh | Lenovo ThinkPad L14-20U50003GE R5 4500U, Vega 6, 45 Wh | Average of class Office | |
|---|---|---|---|---|---|---|---|
| Battery Runtime | 21% | 27% | 9% | 85% | 26% | 34% | |
| H.264 | 574 | 839 46% | 827 44% | 495 -14% | 703 ? 22% | ||
| WiFi v1.3 | 469 | 538 15% | 680 45% | 510 9% | 450 -4% | 487 4% | 598 ? 28% |
| Load | 77 | 78 1% | 71 -8% | 211 174% | 145 88% | 117.1 ? 52% |
Pros
Cons
结论：L14第二代AMD是一个伟大的工作设备，但液晶显示器不佳
多年来，ThinkPad L系列有了明显的改进，而联想ThinkPad L14第二代AMD是这种进步的一个典型例子。
然而，这个过程还没有结束。例如，你可以从薄弱的显示屏中看到这一点，它适合办公室工作，但在其他方面未能满足我们的期望。在Wi-Fi模块、扬声器和网络摄像头以及电池容量方面，联想也走了不少弯路。由于电池太小，L14第二代并不像更昂贵的ThinkPad T系列或ThinkPad E14第三代那样适合移动使用。 ThinkPad E14第3代.此外，L14 Gen 2是14英寸商务笔记本电脑中重量最重的。
除了AMD Ryzen 7处理器的卓越性能，稳定的外壳与出色的输入设备，以及全面的连接性（在我们的评测样本中还包括LTE），还有另一个有利的一面。可维护性和可升级性。目前没有任何一款14英寸的ThinkPad可以进行更广泛的升级，其中两个SO-DIMM插槽和可更换的键盘尤其突出。
总体来说不错，CPU性能和可升级性非常强，但在多媒体质量和移动性方面存在不足。联想ThinkPad L14第二代AMD。
如果你选择ThinkPad L系列，你仍然要面对价格较低带来的妥协。然而，我们可以给ThinkPad L14 Gen 2 AMD一个推荐，因为它的优点超过了缺点，至少当它主要用于静止模式时--但要注意的是，如果可能的话，你应该选择具有更好的400 cd/m²低功耗显示屏的型号。这种型号可以成为更实惠的家庭办公笔记本电脑的真正好选择。
一个强有力的内部竞争者是 ThinkPad E14第三代虽然它的模块化程度较低。惠普 惠普ProBook 440或445 G8在这方面也差不了多少。不过，在商务功能方面，后者更适合E14，因为它缺乏LTE等功能。
价格和可用性
在撰写本文时，ThinkPad L14第二代AMD在联想的网站上被正式列为列为 "即将推出"。另外，你也可以等待该设备在Amazon上出售或newegg，比如说。
Lenovo ThinkPad L14 G2 AMD
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07/29/2021 v7 (old)
Benjamin Herzig
Price comparison
