联想 ThinkPad T550 笔记本电脑简短评测
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LEN40B4 / N156HGE-EA2 tested with X-Rite i1Pro 2
Maximum: 312 cd/m² (Nits) Average: 287.1 cd/m²Brightness Distribution: 83 %
Center on Battery: 300 cd/m²
Contrast: 330:1 (Black: 0.9 cd/m²)
ΔE Color 8.74 | 0.5-29.43 Ø4.91
ΔE Greyscale 9.31 | 0.5-98 Ø5.2
50.8% AdobeRGB 1998 (Argyll 1.6.3 3D)
54.8% AdobeRGB 1998 (Argyll 2.2.0 3D)
79.9% sRGB (Argyll 2.2.0 3D)
53.2% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.42
| Lenovo ThinkPad T550 HD Graphics 5500, 5600U, Samsung SSD PM851 256 GB MZ7TE256HMHP | Toshiba Tecra Z50 A-12K HD Graphics 4400, 4600U, Toshiba THNSNJ256GMCT | Dell Latitude E5550 HD Graphics 4400, 4310U, Lite-On LCS-128L9S | HP EliteBook 850 G1-H5G34ET HD Graphics 4400, 4200U, Hitachi Travelstar Z7K500 HTS725050A7E630 | |
|---|---|---|---|---|
| Display | 11% | 25% | -1% | |
| Display P3 Coverage | 53.2 | 64.7 22% | 67.8 27% | 53.5 1% |
| sRGB Coverage | 79.9 | 81.8 2% | 97.5 22% | 76.2 -5% |
| AdobeRGB 1998 Coverage | 54.8 | 59.8 9% | 69.8 27% | 54.8 0% |
| Screen | 35% | 54% | -0% | |
| Brightness middle | 297 | 270 -9% | 343 15% | 297 0% |
| Brightness | 287 | 285 -1% | 320 11% | 292 2% |
| Brightness Distribution | 83 | 86 4% | 88 6% | 75 -10% |
| Black Level * | 0.9 | 0.36 60% | 0.36 60% | 0.73 19% |
| Contrast | 330 | 750 127% | 953 189% | 407 23% |
| Colorchecker dE 2000 * | 8.74 | 4.85 45% | 3.15 64% | 9.83 -12% |
| Greyscale dE 2000 * | 9.31 | 4.67 50% | 3.65 61% | 11.52 -24% |
| Gamma | 2.42 91% | 2.58 85% | 2.62 84% | 2.59 85% |
| CCT | 10649 61% | 6016 108% | 7101 92% | 10627 61% |
| Color Space (Percent of AdobeRGB 1998) | 50.8 | 54 6% | 63.3 25% | 51 0% |
| Color Space (Percent of sRGB) | 97.4 | |||
| Total Average (Program / Settings) | 23% /
29% | 40% /
46% | -1% /
-1% |
* ... smaller is better
| Cinebench R15 | |
| CPU Multi 64Bit (sort by value) | |
| Lenovo ThinkPad T550 | |
| Toshiba Tecra Z50 A-12K | |
| Dell Latitude E5550 | |
| HP EliteBook 850 G1-H5G34ET | |
| CPU Single 64Bit (sort by value) | |
| Lenovo ThinkPad T550 | |
| Toshiba Tecra Z50 A-12K | |
| Dell Latitude E5550 | |
| HP EliteBook 850 G1-H5G34ET | |
| Cinebench R11.5 | |
| CPU Multi 64Bit (sort by value) | |
| Lenovo ThinkPad T550 | |
| Toshiba Tecra Z50 A-12K | |
| Dell Latitude E5550 | |
| HP EliteBook 850 G1-H5G34ET | |
| CPU Single 64Bit (sort by value) | |
| Lenovo ThinkPad T550 | |
| Toshiba Tecra Z50 A-12K | |
| Dell Latitude E5550 | |
| HP EliteBook 850 G1-H5G34ET | |
| PCMark 8 | |
| Work Score Accelerated v2 (sort by value) | |
| Lenovo ThinkPad T550 | |
| Toshiba Tecra Z50 A-12K | |
| Dell Latitude E5550 | |
| HP EliteBook 850 G1-H5G34ET | |
| Home Score Accelerated v2 (sort by value) | |
| Lenovo ThinkPad T550 | |
| Toshiba Tecra Z50 A-12K | |
| Dell Latitude E5550 | |
| HP EliteBook 850 G1-H5G34ET | |
| PCMark 7 - Score (sort by value) | |
| Lenovo ThinkPad T550 | |
| Toshiba Tecra Z50 A-12K | |
| Dell Latitude E5550 | |
| HP EliteBook 850 G1-H5G34ET | |
| PCMark 7 Score | 4518 points | |
| PCMark 8 Home Score Accelerated v2 | 2988 points | |
| PCMark 8 Creative Score Accelerated v2 | 3261 points | |
| PCMark 8 Work Score Accelerated v2 | 4193 points | |
Help | ||
| Lenovo ThinkPad T550 HD Graphics 5500, 5600U, Samsung SSD PM851 256 GB MZ7TE256HMHP | Toshiba Tecra Z50 A-12K HD Graphics 4400, 4600U, Toshiba THNSNJ256GMCT | Dell Latitude E5550 HD Graphics 4400, 4310U, Lite-On LCS-128L9S | HP EliteBook 850 G1-H5G34ET HD Graphics 4400, 4200U, Hitachi Travelstar Z7K500 HTS725050A7E630 | |
|---|---|---|---|---|
| AS SSD | -2% | -2% | ||
| Seq Read | 493.3 | 509 3% | 474 -4% | |
| 4K Read | 32.47 | 22 -32% | 24 -26% | |
| 4K-64 Read | 333.9 | 359 8% | 365 9% | |
| Score Write | 307 | 343 12% | 352 15% | |
| CrystalDiskMark 3.0 | -92% | |||
| Read Seq | 528 | 122.6 -77% | ||
| Read 4k | 36.61 | 0.6 -98% | ||
| Read 4k QD32 | 296.1 | 1.432 -100% | ||
| Total Average (Program / Settings) | -2% /
-2% | -2% /
-2% | -92% /
-92% |
Samsung SSD PM851 256 GB MZ7TE256HMHP
Sequential Read:
528 MB/s
Sequential Write:
241.1 MB/s
512K Read:
454.6 MB/s
512K Write:
239.8 MB/s
4K Read:
36.61 MB/s
4K Write:
124 MB/s
4K QD32 Read:
296.1 MB/s
4K QD32 Write:
241.3 MB/s
| 3DMark 11 - 1280x720 Performance GPU (sort by value) | |
| Lenovo ThinkPad T550 | |
| Toshiba Tecra Z50 A-12K | |
| Dell Latitude E5550 | |
| HP EliteBook 850 G1-H5G34ET | |
| 3DMark | |
| 1280x720 Ice Storm Standard Graphics (sort by value) | |
| Lenovo ThinkPad T550 | |
| Toshiba Tecra Z50 A-12K | |
| Dell Latitude E5550 | |
| HP EliteBook 850 G1-H5G34ET | |
| 1280x720 Cloud Gate Standard Graphics (sort by value) | |
| Lenovo ThinkPad T550 | |
| Toshiba Tecra Z50 A-12K | |
| Dell Latitude E5550 | |
| HP EliteBook 850 G1-H5G34ET | |
| 3DMark 11 Performance | 992 points | |
| 3DMark Ice Storm Standard Score | 38487 points | |
| 3DMark Cloud Gate Standard Score | 4601 points | |
Help | ||
| low | med. | high | ultra | |
|---|---|---|---|---|
| The Elder Scrolls V: Skyrim (2011) | 28.7 | 14.8 | ||
| Anno 2070 (2011) | 57.1 | 27.6 | 16.3 | |
| GRID: Autosport (2014) | 63.1 | 25.6 | 14.6 |
Noise Level
| Idle |
| 29 / 29 / 29 dB(A) |
| Load |
| 32.6 / 32.6 dB(A) |
 | ||
30 dB silent 40 dB(A) audible 50 dB(A) loud |
||
min:  , med:  , max:  Voltcraft SL-451 (15 cm distance) | ||
(+) The average temperature for the upper side under maximal load is 27.8 °C / 82 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 30.7 °C / 87 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 39.6 °C / 103 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 24.8 °C / 77 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 26.4 °C / 79.5 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 / 2.2 F).
(+) The maximum temperature on the upper side is 30.7 °C / 87 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 39.6 °C / 103 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 24.8 °C / 77 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 26.4 °C / 79.5 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 / 2.2 F).
Power Consumption
| Off / Standby | 0 / 0.1 Watt |
| Idle | 3 / 6 / 6.8 Watt |
| Load |
24.3 / 30.4 Watt |
   
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Key:
min: ,
med: ,
max: Extech Power Analyzer 380803 | |
| Lenovo ThinkPad T550 HD Graphics 5500, 5600U, Samsung SSD PM851 256 GB MZ7TE256HMHP | Toshiba Tecra Z50 A-12K HD Graphics 4400, 4600U, Toshiba THNSNJ256GMCT | Dell Latitude E5550 HD Graphics 4400, 4310U, Lite-On LCS-128L9S | HP EliteBook 850 G1-H5G34ET HD Graphics 4400, 4200U, Hitachi Travelstar Z7K500 HTS725050A7E630 | |
|---|---|---|---|---|
| Battery Runtime | -38% | -54% | -44% | |
| Reader / Idle | 1264 | 769 -39% | 523 -59% | 502 -60% |
| WiFi | 677 | 434 -36% | 365 -46% | 371 -45% |
| Load | 177 | 106 -40% | 78 -56% | 127 -28% |
整体上，T550可以符合T系列的高端定位，相对它的售价物有所值。这是一款相对较轻，坚固而做工精良的商务笔记本，尽管不便于维护升级，但在运行中十分安静且可以保持清凉。LTE让它相比仅支持Wi-Fi的机型有了更大的灵活度。它的安全功能绝对让人满意，键盘和触控板也拥有顶级品质，而所有目标用户群所需的接口也应有尽有。
尽管它的性能对于商务用途的常见软件来说绰绰有余，但处理器在负载下的降频问题让人略感遗憾。它的TN屏幕，虽然还算明亮，但与它的售价不太相称。T550最大的优势无疑是超长的电池续航时间，对于需要长时间使用笔记本而无法连接电源充电的用户来说会十分有吸引力。需要更强性能、更优秀屏幕的用户应该可以在T550众多的配置机型中找到适合的一款。不过，问题在于这类机型是否会走进零售市场。
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。
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