Test: Lenovo ThinkPad T550 (sammanfattning)
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LEN40B4 / N156HGE-EA2 tested with X-Rite i1Pro 2
Max: 312 cd/m² (Nits) Medel: 287.1 cd/m²Distribution av ljusstyrkan: 83 %
Mitt på batteriet: 300 cd/m²
Kontrast: 330:1 (Svärta: 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 poäng | |
| PCMark 8 Home Score Accelerated v2 | 2988 poäng | |
| PCMark 8 Creative Score Accelerated v2 | 3261 poäng | |
| PCMark 8 Work Score Accelerated v2 | 4193 poäng | |
Hjälp | ||
| 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 poäng | |
| 3DMark Ice Storm Standard Score | 38487 poäng | |
| 3DMark Cloud Gate Standard Score | 4601 poäng | |
Hjälp | ||
| låg | med. | hög | 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 |
Ljudnivå
| Låg belastning |
| 29 / 29 / 29 dB(A) |
| Hög belastning |
| 32.6 / 32.6 dB(A) |
 | ||
30 dB tyst 40 dB(A) hörbar 50 dB(A) högt ljud |
||
min:  , med:  , max:  Voltcraft SL-451 (15 cm avstånd) | ||
(+) 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).
Strömförbrukning
| Av/Standby | 0 / 0.1 Watt |
| Låg belastning | 3 / 6 / 6.8 Watt |
| Hög belastning |
24.3 / 30.4 Watt |
   
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Förklaring:
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% |
Totalt sett uppfyller T550 de höga förväntningarna och motiverar sitt pris. Vi har att göra med en relativt lätt, robust och välbyggd, men inte särskilt underhållsvänlig företagslaptop som övertygar med tyst och sval design. LTE gör datorn mer flexibel än modeller måste klara sig på Wi-Fi. Säkerhetspaketet är helt tillfredsställande, tangentbordet och pekplattan är i toppklass och alla gränssnitt som målgruppen kan tänkas behöva finns med.
Även om prestandan klarar alla standardprogram lämnar den strypta processorklockfrekvensen en bitter eftersmak. TN-panelen, som visserligen är ljusstark, matchar inte priset. Den största fördelen med T550 är tveklöst den fantastiska batteritiden, som gör den bärbara datorn särskilt intressant för användare som tillbringar långa perioder utan eluttag.
Köpare som behöver lite mindre prestanda eller en bättre skärm kan i teorin hitta ett stort urval av T550-modeller lever upp till alla önskemål. Det är dock tveksamt om alla kommer att finnas tillgängliga på butikshyllorna.
Price comparison
