联想 ThinkPad L440 20AT004QGE 笔记本电脑简短评测 更新
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Lenovo B140R102 V1 / N140FGE-EA2 tested with X-Rite i1Pro 2
Maximum: 259 cd/m² (Nits) Average: 233 cd/m²Brightness Distribution: 81 %
Center on Battery: 259 cd/m²
Contrast: 199:1 (Black: 1.3 cd/m²)
ΔE ColorChecker Calman: 11.83 | ∀{0.5-29.43 Ø4.79}
ΔE Greyscale Calman: 6.24 | ∀{0.09-98 Ø5}
40% AdobeRGB 1998 (Argyll 1.6.3 3D)
41.68% AdobeRGB 1998 (Argyll 3D)
59.6% sRGB (Argyll 3D)
40.23% Display P3 (Argyll 3D)
Gamma: 2.3
CCT: 5429 K
| Lenovo ThinkPad L440 20AT004QGE HD Graphics 4600, 4300M, Intel SSD 520 Series SSDSC2BW180A3L | Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB | HP ProBook 640 G1 H5G66ET HD Graphics 4600, 4200M, Hitachi Travelstar Z7K500 HTS725050A7E630 | Lenovo Thinkpad L440 HD Graphics 4600, 4330M, 500 GB - 5400 rpm | |
|---|---|---|---|---|
| Display | 0% | -2% | -2% | |
| Display P3 Coverage (%) | 40.23 | 40.29 0% | 39.85 -1% | 39.79 -1% |
| sRGB Coverage (%) | 59.6 | 60 1% | 58.7 -2% | 58.7 -2% |
| AdobeRGB 1998 Coverage (%) | 41.68 | 41.71 0% | 40.99 -2% | 40.86 -2% |
| Screen | 25% | 21% | 26% | |
| Brightness middle (cd/m²) | 259 | 342 32% | 267 3% | 212 -18% |
| Brightness (cd/m²) | 233 | 320 37% | 272 17% | 204 -12% |
| Brightness Distribution (%) | 81 | 86 6% | 91 12% | 92 14% |
| Black Level * (cd/m²) | 1.3 | 0.78 40% | 0.54 58% | 0.3236 75% |
| Contrast (:1) | 199 | 438 120% | 494 148% | 655 229% |
| Colorchecker dE 2000 * | 11.83 | 8.96 24% | 10.39 12% | 10.83 8% |
| Greyscale dE 2000 * | 6.24 | 9.64 -54% | 11.13 -78% | 11.42 -83% |
| Gamma | 2.3 96% | 2.26 97% | 2.29 96% | 2.68 82% |
| CCT | 5429 120% | 11592 56% | 13721 47% | 13243 49% |
| Color Space (Percent of AdobeRGB 1998) (%) | 40 | 38.34 -4% | 37.4 -6% | 37.84 -5% |
| Total Average (Program / Settings) | 13% /
18% | 10% /
15% | 12% /
18% |
* ... smaller is better
| Cinebench R15 | |
| CPU Single 64Bit (sort by value) | |
| Lenovo ThinkPad L440 20AT004QGE | |
| Dell Latitude 3440 | |
| HP ProBook 640 G1 H5G66ET | |
| CPU Multi 64Bit (sort by value) | |
| Lenovo ThinkPad L440 20AT004QGE | |
| Dell Latitude 3440 | |
| HP ProBook 640 G1 H5G66ET | |
| PCMark 8 | |
| Work Score Accelerated v2 (sort by value) | |
| Lenovo ThinkPad L440 20AT004QGE | |
| HP ProBook 640 G1 H5G66ET | |
| Home Score Accelerated v2 (sort by value) | |
| Lenovo ThinkPad L440 20AT004QGE | |
| HP ProBook 640 G1 H5G66ET | |
| PCMark 8 Home Score Accelerated v2 | 2590 points | |
| PCMark 8 Work Score Accelerated v2 | 3951 points | |
Help | ||
| Lenovo ThinkPad L440 20AT004QGE | Dell Latitude 3440 | HP ProBook 640 G1 H5G66ET | Lenovo Thinkpad L440 | |
|---|---|---|---|---|
| PCMark 8 | ||||
| Storage Score (Points) | 4899 | 2339 -52% | 2246 -54% | |
| CrystalDiskMark 3.0 | -83% | -75% | -76% | |
| Read 4k (MB/s) | 24.05 | 0.326 -99% | 0.466 -98% | 0.506 -98% |
| Write 4k (MB/s) | 85.8 | 0.707 -99% | 1.039 -99% | 1.123 -99% |
| Read Seq (MB/s) | 455.7 | 82.3 -82% | 120.1 -74% | 121.5 -73% |
| Write Seq (MB/s) | 165.2 | 80.7 -51% | 118.6 -28% | 112.9 -32% |
| Total Average (Program / Settings) | -83% /
-83% | -64% /
-70% | -65% /
-71% |
Intel SSD 520 Series SSDSC2BW180A3L
Sequential Read:
455.7 MB/s
Sequential Write:
165.2 MB/s
512K Read:
368 MB/s
512K Write:
158.6 MB/s
4K Read:
24.05 MB/s
4K Write:
85.8 MB/s
4K QD32 Read:
223.2 MB/s
4K QD32 Write:
174.7 MB/s
| 3DMark | |
| 1280x720 Cloud Gate Standard Score (sort by value) | |
| Lenovo ThinkPad L440 20AT004QGE | |
| Dell Latitude 3440 | |
| HP ProBook 640 G1 H5G66ET | |
| 1280x720 Cloud Gate Standard Graphics (sort by value) | |
| Lenovo ThinkPad L440 20AT004QGE | |
| Dell Latitude 3440 | |
| HP ProBook 640 G1 H5G66ET | |
| 1280x720 Cloud Gate Standard Physics (sort by value) | |
| Lenovo ThinkPad L440 20AT004QGE | |
| Dell Latitude 3440 | |
| HP ProBook 640 G1 H5G66ET | |
| 3DMark 11 Performance | 853 points | |
| 3DMark Cloud Gate Standard Score | 4325 points | |
Help | ||
| low | med. | high | ultra | |
|---|---|---|---|---|
| Hitman: Absolution (2012) | 19.4 | 13 | 9.2 | |
| Tomb Raider (2013) | 41.6 | 20.1 | 12.3 | |
| Thief (2014) | 13.7 | 8 |
| Tomb Raider | |
| 1024x768 Low Preset (sort by value) | |
| Lenovo ThinkPad L440 20AT004QGE | |
| Dell Latitude 3440 | |
| Lenovo Thinkpad L440 | |
| 1366x768 Normal Preset AA:FX AF:4x (sort by value) | |
| Lenovo ThinkPad L440 20AT004QGE | |
| Dell Latitude 3440 | |
| Lenovo Thinkpad L440 | |
Noise level
| Idle |
| 30 / 30 / 36.2 dB(A) |
| DVD |
| 37.5 / dB(A) |
| Load |
| 36.8 / 38.8 dB(A) |
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30 dB silent 40 dB(A) audible 50 dB(A) loud |
||
min:  , med:  , max:  Voltcraft sl-320 (15 cm distance) | ||
(+) The average temperature for the upper side under maximal load is 29.6 °C / 85 F, compared to the average of 29.5 °C / 85 F for the devices in the class Office.
(+) The maximum temperature on the upper side is 36.5 °C / 98 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 36.8 °C / 98 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 26.4 °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 28.8 °C / 83.8 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 (-1.2 °C / -2.1 F).
(+) The maximum temperature on the upper side is 36.5 °C / 98 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 36.8 °C / 98 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 26.4 °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 28.8 °C / 83.8 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 (-1.2 °C / -2.1 F).
| Lenovo ThinkPad L440 20AT004QGE | Dell Latitude 3440 | HP ProBook 640 G1 H5G66ET | Lenovo Thinkpad L440 | |
|---|---|---|---|---|
| Power Consumption | 4% | -4% | -46% | |
| Idle Minimum * (Watt) | 3.9 | 5.4 -38% | 8.6 -121% | |
| Idle Average * (Watt) | 7.7 | 7.5 3% | 7.9 -3% | 11.8 -53% |
| Idle Maximum * (Watt) | 8.5 | 8.3 2% | 8 6% | 12.7 -49% |
| Load Average * (Watt) | 46.5 | 43.6 6% | 39 16% | 48.1 -3% |
| Load Maximum * (Watt) | 52.2 | 49.3 6% | 52.5 -1% | 53.4 -2% |
* ... smaller is better
Power Consumption
| Off / Standby | 0.1 / 0.1 Watt |
| Idle | 3.9 / 7.7 / 8.5 Watt |
| Load |
46.5 / 52.2 Watt |
   
| |
Key:
min: ,
med: ,
max: Voltcraft VC 960 | |
| Battery runtime | |
| Reader / Idle (sort by value) | |
| Lenovo ThinkPad L440 20AT004QGE | |
| HP ProBook 640 G1 H5G66ET | |
| Lenovo Thinkpad L440 | |
| WiFi (sort by value) | |
| Lenovo ThinkPad L440 20AT004QGE | |
| Dell Latitude 3440 | |
| HP ProBook 640 G1 H5G66ET | |
| Lenovo Thinkpad L440 | |
联想为型号为20AT004QGE的ThinkPad L440配备了更强的HD+屏幕和固态硬盘。不过，这仍然无法让它算是一款实惠型高端专业笔记本。这块屏幕仅200:1的对比度十分惨淡，而它的DeltaE色差指数也非常高。配备HD+屏幕的竞争对手，Latitude 3440和ProBook 640 G1相比之下屏幕质量都更高（对比度）。配备固态硬盘的ProBook售价仅高出50欧元（约382人民币），而Latitude 3440尽管专业功能（输入设备，接口，机身）更少，它配备GT 740M显卡的型号售价仅670欧元（约5129人民币）。
不论如何，我们的测试机在应用程序性能上领先于其他用于对比的机型，由于它们都采用了传统硬盘(Latitude 3440, ProBook 640 G1)，其中有一些采用了较弱的低电压版本处理器(Latitude 3440)。它的处理器可以发挥全部的加速性能，而不会有过热降频的问题。对于注重性能的用户，除了用于游戏用途外，配备固态硬盘的ThinkPad L440都是个完美的选择。
注：本文是基于完整评测的缩减版本，阅读完整的英文评测，请点击这里。
