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Första intrycken: Lenovo ThinkPad T450s

Jobbar med detaljerna. Lenovos ThinkPad T450s har mycket att leva upp till. Förväntningarna är höga på efterföljaren till framgångsrika T440s. Faktum är att T450s visar sig vara en försiktigt utvecklad perfektionist, som nu ska utmana konkurrenterna från HP, Dell m.fl.
340 mm 235 mm 24 mm 1.6 kg339 mm 237 mm 21 mm 1.8 kg337 mm 232 mm 20.4 mm 1.6 kg331 mm 226 mm 20.7 mm 1.6 kg
271
cd/m²
262
cd/m²
282
cd/m²
271
cd/m²
272
cd/m²
272
cd/m²
263
cd/m²
256
cd/m²
267
cd/m²
Distribution av ljusstyrkan
LP140WF3-SPD1
X-Rite i1Pro 2
Max: 282 cd/m² Medel: 268.4 cd/m²
Distribution av ljusstyrkan: 91 %
Mitt på batteriet: 273 cd/m²
Kontrast: 1110:1 (Svärta: 0.245 cd/m²)
ΔE Color 4.35 | 0.6-29.43 Ø5.7
ΔE Greyscale 3.7 | 0.64-98 Ø5.9
83.5% sRGB (Argyll 3D) 54.7% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.68
Lenovo ThinkPad T450s-20BWS03F00
HD Graphics 5500, 5600U, Intel SSD Pro 2500 Series SSDSC2BF360A5L
Dell Latitude E7450
HD Graphics 5500, 5300U, Samsung SSD PM851 mSATA 128 GB
HP EliteBook 840 G1
HD Graphics 4400, 4600U, Intel SSD Pro 1500 Series SSDSC2BF180A4H
Asus ASUSPRO Advanced BU401LA-CZ020G
HD Graphics 5000, 4650U, Liteonit LCS-256M6S
Toshiba Tecra Z40 A-147
HD Graphics 4400, 4200U, Hitachi Travelstar Z7K500 HTS725050A7E630
Screen
-1%
-70%
-63%
-119%
Brightness middle
272
280
3%
280
3%
216
-21%
256
-6%
Brightness
268
257
-4%
280
4%
209
-22%
251
-6%
Brightness Distribution
91
75
-18%
87
-4%
89
-2%
87
-4%
Black Level *
0.245
0.3
-22%
0.69
-182%
0.436
-78%
1.36
-455%
Contrast
1110
933
-16%
406
-63%
495
-55%
188
-83%
Colorchecker DeltaE2000 *
4.35
3.45
21%
9.41
-116%
9.63
-121%
10.86
-150%
Greyscale DeltaE2000 *
3.7
3.35
9%
10.19
-175%
10.72
-190%
11.71
-216%
Gamma
2.68 82%
2.37 93%
2.49 88%
2.49 88%
2.16 102%
CCT
6076 107%
6940 94%
12671 51%
12873 50%
12518 52%
Color Space (Percent of AdobeRGB 1998)
54.7
60
10%
40
-27%
44.8
-18%
38
-31%
Color Space (Percent of sRGB)
83.5
92
10%

* ... smaller is better

Cinebench R11.5
CPU Single 64Bit (sort by value)
Lenovo ThinkPad T450s-20BWS03F00
1.51 Points ∼48%
Dell Latitude E7450
1.35 Points ∼43% -11%
HP EliteBook 840 G1
1.46 Points ∼46% -3%
Asus ASUSPRO Advanced BU401LA-CZ020G
1.42 Points ∼45% -6%
Toshiba Tecra Z40 A-147
1.11 Points ∼35% -26%
CPU Multi 64Bit (sort by value)
Lenovo ThinkPad T450s-20BWS03F00
3.31 Points ∼7%
Dell Latitude E7450
3.07 Points ∼6% -7%
HP EliteBook 840 G1
2.92 Points ∼6% -12%
Asus ASUSPRO Advanced BU401LA-CZ020G
2.9 Points ∼6% -12%
Toshiba Tecra Z40 A-147
2.49 Points ∼5% -25%
Cinebench R15
CPU Single 64Bit (sort by value)
Lenovo ThinkPad T450s-20BWS03F00
130 Points ∼48%
Dell Latitude E7450
117 Points ∼43% -10%
HP EliteBook 840 G1
126 Points ∼46% -3%
Asus ASUSPRO Advanced BU401LA-CZ020G
124 Points ∼46% -5%
Toshiba Tecra Z40 A-147
100 Points ∼37% -23%
CPU Multi 64Bit (sort by value)
Lenovo ThinkPad T450s-20BWS03F00
302 Points ∼7%
Dell Latitude E7450
280 Points ∼6% -7%
HP EliteBook 840 G1
272 Points ∼6% -10%
Asus ASUSPRO Advanced BU401LA-CZ020G
271 Points ∼6% -10%
Toshiba Tecra Z40 A-147
231 Points ∼5% -24%
X264 HD Benchmark 4.0
Pass 2 (sort by value)
Lenovo ThinkPad T450s-20BWS03F00
18.72 fps ∼8%
Dell Latitude E7450
17.51 fps ∼8% -6%
HP EliteBook 840 G1
16.68 fps ∼8% -11%
Asus ASUSPRO Advanced BU401LA-CZ020G
18.37 fps ∼8% -2%
Pass 1 (sort by value)
Lenovo ThinkPad T450s-20BWS03F00
102.36 fps ∼30%
Dell Latitude E7450
92.11 fps ∼27% -10%
HP EliteBook 840 G1
95.19 fps ∼28% -7%
Asus ASUSPRO Advanced BU401LA-CZ020G
95.5 fps ∼28% -7%
3DMark 11
1280x720 Performance GPU (sort by value)
Lenovo ThinkPad T450s-20BWS03F00
1117 Points ∼2%
Dell Latitude E7450
927 Points ∼2% -17%
HP EliteBook 840 G1
868 Points ∼1% -22%
Asus ASUSPRO Advanced BU401LA-CZ020G
1032 Points ∼2% -8%
Toshiba Tecra Z40 A-147
703 Points ∼1% -37%
1280x720 Performance (sort by value)
Lenovo ThinkPad T450s-20BWS03F00
1251 Points ∼3%
Dell Latitude E7450
1023 Points ∼2% -18%
HP EliteBook 840 G1
988 Points ∼2% -21%
Asus ASUSPRO Advanced BU401LA-CZ020G
1120 Points ∼3% -10%
Toshiba Tecra Z40 A-147
782 Points ∼2% -37%
3DMark
1920x1080 Fire Strike Score (sort by value)
Lenovo ThinkPad T450s-20BWS03F00
753 Points ∼2%
Dell Latitude E7450
619 Points ∼2% -18%
HP EliteBook 840 G1
632 Points ∼2% -16%
Asus ASUSPRO Advanced BU401LA-CZ020G
644 Points ∼2% -14%
Toshiba Tecra Z40 A-147
500 Points ∼1% -34%
1280x720 Cloud Gate Standard Score (sort by value)
Lenovo ThinkPad T450s-20BWS03F00
5782 Points ∼8%
Dell Latitude E7450
4655 Points ∼6% -19%
HP EliteBook 840 G1
4778 Points ∼6% -17%
Asus ASUSPRO Advanced BU401LA-CZ020G
4565 Points ∼6% -21%
Toshiba Tecra Z40 A-147
3789 Points ∼5% -34%
1280x720 Ice Storm Standard Score (sort by value)
Lenovo ThinkPad T450s-20BWS03F00
55793 Points ∼5%
Dell Latitude E7450
43346 Points ∼4% -22%
HP EliteBook 840 G1
40658 Points ∼4% -27%
Asus ASUSPRO Advanced BU401LA-CZ020G
45548 Points ∼4% -18%
Toshiba Tecra Z40 A-147
28516 Points ∼3% -49%

Legend

 
Lenovo ThinkPad T450s-20BWS03F00 Intel Core i7-5600U, Intel HD Graphics 5500, Intel SSD Pro 2500 Series SSDSC2BF360A5L
 
Dell Latitude E7450 Intel Core i5-5300U, Intel HD Graphics 5500, Samsung SSD PM851 mSATA 128 GB
 
HP EliteBook 840 G1 Intel Core i7-4600U, Intel HD Graphics 4400, Intel SSD Pro 1500 Series SSDSC2BF180A4H
 
Asus ASUSPRO Advanced BU401LA-CZ020G Intel Core i7-4650U, Intel HD Graphics 5000, Liteonit LCS-256M6S
 
Toshiba Tecra Z40 A-147 Intel Core i5-4200U, Intel HD Graphics 4400, Hitachi Travelstar Z7K500 HTS725050A7E630

Ljudnivå

Låg belastning
29.1 / 29.1 / 29.1 dB(A)
Hög belastning
34.3 / 34.8 dB(A)
  red to green bar
 
 
30 dB
tyst
40 dB(A)
hörbar
50 dB(A)
högt ljud
 
min: dark, med: mid, max: light   Voltcraft SL-451 (15 cm avstånd)
Låg belastning
 24.2 °C24.7 °C26.4 °C 
 24.7 °C25.2 °C25.4 °C 
 24 °C24.5 °C25 °C 
Max: 26.4 °C
Medel: 24.9 °C
26.9 °C25.9 °C28 °C
26.2 °C26.9 °C24.8 °C
25.1 °C25 °C24.1 °C
Max: 28 °C
Medel: 25.9 °C
Strömförsörjning (max.)  28.6 °C | Rumstemperatur 20 °C | Fluke 62 Max
(+) The average temperature for the upper side under maximal load is 30 °C / 86 F, compared to the average of 29.4 °C / 85 F for the devices in the class Office.
(+) The maximum temperature on the upper side is 35.1 °C / 95 F, compared to the average of 34 °C / 93 F, ranging from 21.2 to 62.5 °C for the class Office.
(+) The bottom heats up to a maximum of 36.6 °C / 98 F, compared to the average of 36.5 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 24.9 °C / 77 F, compared to the device average of 29.4 °C / 85 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 29.5 °C / 85.1 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 28 °C / 82.4 F (-1.5 °C / -2.7 F).
Strömförbrukning
Av/Standbydarklight 0 / 0.1 Watt
Låg belastningdarkmidlight 2.9 / 6.6 / 7.9 Watt
Hög belastning midlight 30.8 / 48.8 Watt
 color bar
Förklaring: min: dark, med: mid, max: light        Extech Power Analyzer 380803
Lenovo ThinkPad T450s
Lenovo ThinkPad T450s

ThinkPad T440s har dominerat vår kontorsdator-topplista i ett år nu och den nya T450s har goda chanser att ta över topplaceringen. Återigen har kontorsklassikern positiva egenskaper, inklusive hög byggkvalitet, ett bra tangentbord, en imponerande låg ljudnivå och låga temperaturer. Framförallt har den knappt några större brister. 

Vi skulle naturligtvis, uppskatta ytterligare en digital videoutgång och en andra RAM-plats, och kanske ett något större standardbatteri. Men det är inga allvarliga brister, särskilt eftersom Lenovo har (delvis) eliminerat ett av de största problemen med föregångaren – den mindre ergonomiska pekplattan. 

Därför är vi nyfikna på om Dells Latitude E7450 eller HP:s Elitebook 840 G1 (test av 840 G2 kommer snart) har en chans mot T450s. 

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Till Schönborn, 2015-02-22 (Update: 2015-02-22)