戴尔 Latitude 14 E7450 超极本简短评测
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AUO B140HAN tested with X-Rite i1Pro 2
Maximum: 293 cd/m² (Nits) Average: 257.3 cd/m²Brightness Distribution: 75 %
Center on Battery: 280 cd/m²
Contrast: 933:1 (Black: 0.3 cd/m²)
ΔE Color 3.45 | 0.5-29.43 Ø4.91
ΔE Greyscale 3.35 | 0.5-98 Ø5.2
92% sRGB (Argyll 1.6.3 3D)
60% AdobeRGB 1998 (Argyll 1.6.3 3D)
67.7% AdobeRGB 1998 (Argyll 2.2.0 3D)
92.4% sRGB (Argyll 2.2.0 3D)
66.6% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.37
| Dell Latitude E7450 | Lenovo ThinkPad T440s 20AQ006BGE | HP EliteBook 840 G1 | |
|---|---|---|---|
| Display | -4% | -35% | |
| Display P3 Coverage | 66.6 | 68.2 2% | 41.65 -37% |
| sRGB Coverage | 92.4 | 86.4 -6% | 62.3 -33% |
| AdobeRGB 1998 Coverage | 67.7 | 63.2 -7% | 43.08 -36% |
| Screen | 4% | -71% | |
| Brightness middle | 280 | 304 9% | 280 0% |
| Brightness | 257 | 293 14% | 280 9% |
| Brightness Distribution | 75 | 86 15% | 87 16% |
| Black Level * | 0.3 | 0.36 -20% | 0.69 -130% |
| Contrast | 933 | 844 -10% | 406 -56% |
| Colorchecker dE 2000 * | 3.45 | 3.45 -0% | 9.41 -173% |
| Greyscale dE 2000 * | 3.35 | 1.94 42% | 10.19 -204% |
| Gamma | 2.37 93% | 2.58 85% | 2.49 88% |
| CCT | 6940 94% | 6399 102% | 12671 51% |
| Color Space (Percent of AdobeRGB 1998) | 60 | 51 -15% | 40 -33% |
| Color Space (Percent of sRGB) | 92 | ||
| Total Average (Program / Settings) | 0% /
2% | -53% /
-62% |
* ... smaller is better
| Cinebench R11.5 | |
| CPU Single 64Bit (sort by value) | |
| Intel Core i5-5300U | |
| Intel Core i7-4600U | |
| Intel Core i7-4650U | |
| Intel Core i5-4300U | |
| Intel Core i5-4200U | |
| CPU Multi 64Bit (sort by value) | |
| Intel Core i5-5300U | |
| Intel Core i7-4600U | |
| Intel Core i7-4650U | |
| Intel Core i5-4300U | |
| Intel Core i5-4200U | |
| Cinebench R15 | |
| CPU Single 64Bit (sort by value) | |
| Intel Core i5-5300U | |
| Intel Core i7-4600U | |
| Intel Core i7-4650U | |
| Intel Core i5-4300U | |
| CPU Multi 64Bit (sort by value) | |
| Intel Core i5-5300U | |
| Intel Core i7-4600U | |
| Intel Core i7-4650U | |
| Intel Core i5-4300U | |
| X264 HD Benchmark 4.0 | |
| Pass 1 (sort by value) | |
| Intel Core i5-5300U | |
| Intel Core i7-4650U | |
| Intel Core i5-4200U | |
| Pass 2 (sort by value) | |
| Intel Core i5-5300U | |
| Intel Core i7-4650U | |
| Intel Core i5-4200U | |
Samsung SSD PM851 mSATA 128 GB
Transfer Rate Minimum:
133.5 MB/s
Transfer Rate Maximum:
436.3 MB/s
Transfer Rate Average:
363.2 MB/s
Access Time:
0.1 ms
Burst Rate:
37.7 MB/s
CPU Usage:
3.3 %
| PCMark 7 - Score (sort by value) | |
| Dell Latitude E7450 | |
| Lenovo Thinkpad T440s 20AQ0069GE | |
| Dell Latitude E7440 | |
| HP EliteBook 840 G1 | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| PCMark 8 - Home Score Accelerated v2 (sort by value) | |
| Dell Latitude E7450 | |
| HP EliteBook 840 G1 | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| PCMark 7 Score | 4650 points | |
| PCMark 8 Home Score Accelerated v2 | 2932 points | |
| PCMark 8 Creative Score Accelerated v2 | 3459 points | |
| PCMark 8 Work Score Accelerated v2 | 4002 points | |
Help | ||
| 3DMark 11 - 1280x720 Performance GPU (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| HP EliteBook 840 G1 | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| Acer Aspire E1-772G 54208G1TMnsk | |
| 3DMark | |
| 1280x720 Cloud Gate Standard Graphics (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| HP EliteBook 840 G1 | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| Acer Aspire E1-772G 54208G1TMnsk | |
| 1920x1080 Fire Strike Graphics (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| HP EliteBook 840 G1 | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| Acer Aspire E1-772G 54208G1TMnsk | |
| 3DMark Vantage - 1280x1024 P GPU no PhysX (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| HP EliteBook 840 G1 | |
| Acer Aspire E1-772G 54208G1TMnsk | |
| 3DMark 06 Standard Score | 6143 points | |
| 3DMark Vantage P Result | 4095 points | |
| 3DMark 11 Performance | 1023 points | |
| 3DMark Ice Storm Standard Score | 43346 points | |
| 3DMark Cloud Gate Standard Score | 4655 points | |
| 3DMark Fire Strike Score | 619 points | |
| 3DMark Fire Strike Extreme Score | 283 points | |
Help | ||
Tomb Raider | Dota 2 | Diablo III | Counter-Strike: GO | Thief | Sims 4 | Fifa 15 | Middle-earth: Shadow of Mordor | Alien: Isolation | F1 2014
| Tomb Raider | |
| 1024x768 Low Preset (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| HP EliteBook 840 G1 | |
| Sony Vaio Duo 13 SVD1321M2E | |
| 1366x768 Normal Preset AA:FX AF:4x (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| HP EliteBook 840 G1 | |
| Sony Vaio Duo 13 SVD1321M2E | |
| 1366x768 High Preset AA:FX AF:8x (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| HP EliteBook 840 G1 | |
| Sony Vaio Duo 13 SVD1321M2E | |
| Dota 2 | |
| 1024x768 Low / Off, Render Quality: 40 % (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| HP EliteBook 840 G1 | |
| 1366x768 Medium / On, Render Quality: 70 % (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| HP EliteBook 840 G1 | |
| 1920x1080 High / On, Render Quality: 100 % (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| Diablo III | |
| 1024x768 Low / off (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Sony Vaio Duo 13 SVD1321M2E | |
| 1366x768 Medium / low (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Sony Vaio Duo 13 SVD1321M2E | |
| 1366x768 High AA:on (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Counter-Strike: GO | |
| 1024x768 (Very) Low (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Sony Vaio Duo 13 SVD1321M2E | |
| 1366x768 Medium (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Sony Vaio Duo 13 SVD1321M2E | |
| 1366x768 High AA:2x MS AF:4x (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Sony Vaio Duo 13 SVD1321M2E | |
| Thief | |
| 1024x768 Very Low Preset (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| 1366x768 Normal Preset AA:FX (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| 1366x768 High Preset AA:FXAA & Low SS AF:4x (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Sims 4 | |
| 1024x768 Low Preset (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| 1366x768 Medium Preset (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| 1920x1080 High Preset (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| Fifa 15 | |
| 1280x720 Low Preset (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| 1366x768 High Preset AA:2x MS (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| 1920x1080 High Preset AA:4x MS (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| Middle-earth: Shadow of Mordor | |
| 1280x720 Lowest Preset (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| 1344x756 Medium Preset (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| 1920x1080 High Preset (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| Alien: Isolation | |
| 1024x768 (Very) Low, Off, Shadow Map 512 AF:1x (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| 1366x768 Medium, On (AA & SSAO Off), Shadow Map 1024 AF:4x (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| 1920x1080 High, On, Shadow Map 1536, Standard SSAO AA:FX AF:8x (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| F1 2014 | |
| 1024x768 Ultra Low Preset (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| 1366x768 Medium Preset (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| 1920x1080 High Preset (sort by value) | |
| Dell Latitude E7450 | |
| Dell Latitude E7450 | |
| Lenovo ThinkPad T440s 20AQ-0069GE | |
| Asus ASUSPRO Advanced BU401LA-CZ020G | |
| low | med. | high | ultra | |
|---|---|---|---|---|
| The Elder Scrolls V: Skyrim (2011) | 28.5 | 14.6 | 9.3 | 4.8 |
| Anno 2070 (2011) | 57.1 | 28.4 | 17 | 8.4 |
| Diablo III (2012) | 52.8 | 34.8 | 27.8 | 16.9 |
| Counter-Strike: GO (2012) | 71 | 51.3 | 36.2 | 19.7 |
| Crysis 3 (2013) | 15.7 | 10.5 | 7.2 | 2.8 |
| Tomb Raider (2013) | 45 | 22.9 | 14.5 | 7.3 |
| BioShock Infinite (2013) | 31.4 | 18.3 | 14.9 | 4.6 |
| Metro: Last Light (2013) | 15.6 | 11.8 | 9 | 4.5 |
| Company of Heroes 2 (2013) | 16.9 | 13.4 | 7.4 | 3 |
| Dota 2 (2013) | 54.4 | 31.9 | 14.4 | |
| Battlefield 4 (2013) | 20.8 | 15.2 | 10.3 | 3.7 |
| Thief (2014) | 13.3 | 9 | 7.3 | 3.6 |
| GRID: Autosport (2014) | 67.3 | 25.3 | 14.6 | 12.5 |
| Sims 4 (2014) | 129.4 | 31.7 | 15.8 | 10.2 |
| Fifa 15 (2014) | 34.6 | 26.6 | 15.5 | |
| Middle-earth: Shadow of Mordor (2014) | 17.6 | 11.6 | 6.3 | 4.9 |
| Alien: Isolation (2014) | 26.6 | 18.3 | 9.8 | 8 |
| Ryse: Son of Rome (2014) | 11.4 | 7.5 | 4 | 3.8 |
| The Evil Within (2014) | 14.4 | 10.3 | 5.6 | |
| F1 2014 (2014) | 42 | 28 | 18 | 12 |
| Civilization: Beyond Earth (2014) | 34.3 | 16.3 | 9.4 | 8 |
| Far Cry 4 (2014) | 13.8 | 10 | 5.2 | |
| The Crew (2014) | 14.2 | 10.4 | 6 | 2.8 |
Noise Level
| Idle |
| 29.1 / 29.1 / 30 dB(A) |
| Load |
| 36.4 / 37.8 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 30.4 °C / 87 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 41.6 °C / 107 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 37.1 °C / 99 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 25.8 °C / 78 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 28.5 °C / 83.3 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 (-0.9 °C / -1.6 F).
(±) The maximum temperature on the upper side is 41.6 °C / 107 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 37.1 °C / 99 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 25.8 °C / 78 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 28.5 °C / 83.3 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 (-0.9 °C / -1.6 F).
Power Consumption
| Off / Standby | 0 / 0.1 Watt |
| Idle | 4 / 7.8 / 9 Watt |
| Load |
31.6 / 29.6 Watt |
   
| |
Key:
min: ,
med: ,
max: Extech Power Analyzer 380803 | |
| Dell Latitude E7450 HD Graphics 5500, 5300U, Samsung SSD PM851 mSATA 128 GB | Lenovo ThinkPad T440s 20AQ006BGE GeForce GT 730M, 4600U, Samsung SSD 840 250GB MZ7TD256HAFV | 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 | |
|---|---|---|---|---|
| Battery Runtime | -17% | -13% | -16% | |
| Reader / Idle | 714 | 856 20% | 778 9% | 699 -2% |
| H.264 | 452 | 307 -32% | 296 -35% | 296 -35% |
| WiFi | 459 | 306 -33% | 364 -21% | 310 -32% |
| WiFi v1.3 | 422 | |||
| Load | 115 | 87 -24% | 112 -3% | 120 4% |
你不需要每次都发明一种新的轮子——一点点地改进已有产品也是个好主意。戴尔就采用了这种方式，并没有完全改变Latitude E7450的设计，但相对前作E7440在许多方面有了小改进。
许多优化都只有在你把这两款设备放在一起比较时才能察觉到。它的机身比之前薄了一点点，而尽管重量相同电池的容量却增加了。在负载下的风扇噪音获得了进一步的减弱，同时处理器和显卡的性能由于采用全新Broadwell芯片而有了提升。它采用了与前作相似的高质量输入设备和一块非常出色的全高清屏幕，给人以非常全面的整体印象，我们的最终评分为88%——非常优秀。
而ThinkPad T440s尽管部件较旧却多得到了两分，主要源于一些小细节，如可选的96瓦时电池，或相对更低的噪音。不过这也证明了Haswell架构笔记本电脑在2015年也不至于过时。在同样价位下新一代产品当然更物有所值，但许多已经停产的型号如Latitude E7440在未来几周内可能会有更低更诱人的售价。这也是我们对E7450有所不满的一点：在一月底近1600欧元（约11426人民币）的售价对于一台搭配Core i5处理器和128GB固态硬盘的笔记本来说有些过高。不过，即将上市的ThinkPad T450s和EliteBook 840 G2的价位应该也会非常接近——这也是由于现在欧元较弱的汇率所致。
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。
