联想 ThinkPad E450 笔记本电脑简短评测

Name: Lenovo ThinkPad E450 20DDS01E00
Brand: Lenovo

E为入门。 14寸设备又重新流行起来了吗？这家生产商为我们带来了一款内外兼修的设备，独立显卡，全高清屏幕，固态硬盘，和一颗Broadwell Core i5处理器，售价也十分诱人。它可以成为大学学习和游戏的最佳选择吗？

Sebastian Jentsch, ✓ Tanja Hinum (translated by Yuchen Wang), Published 07/19/2015 🇺🇸 🇩🇪 ...

Broadwell Windows Laptop / Notebook Business

Test device courtesy of campuspoint.de

Download your licensed rating image as PNG / SVG

Lenovo ThinkPad E450 20DDS01E00

Processor

Intel Core i5-5200U 2 x 2.2 - 2.7 GHz, Broadwell

Graphics adapter

AMD Radeon R7 M260 - 2048 MB VRAM, Core: 900 MHz, RAM: 1000 MHz, DDR3, 14.301.1002.1005 WHQL, Enduro

Memory

8 GB

, 单通道 PC3-12800

Display

14.00 inch 16:9, 1920 x 1080 pixel, HB140FH1 401, TN, glossy: no

Mainboard

Intel Broadwell-U PCH-LP (Baseline)

Storage

Samsung CM871 MZ7LF192HCGS, 192 GB

, 105 GB free

Soundcard

Intel Broadwell PCH-LP - High Definition Audio Controller

Connections

1 USB 2.0, 2 USB 3.0 / 3.1 Gen1, 1 HDMI, 1 Kensington Lock, 1 Docking Station Port, Audio Connections: 麦克风和耳机, Card Reader: MMC, SD, SDHC, SDXC, OneLink 拓展坞接口

Networking

Intel Ethernet Connection I218-V (10/100/1000MBit/s), Intel Dual Band Wireless-AC 3160 (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5/), Bluetooth 4.0

Size

height x width x depth (in mm): 24 x 339 x 239

Battery

47 Wh Lithium-Ion, 6 芯, Battery runtime (according to manufacturer): 9 h

Camera

Webcam: 720p 高清(90万像素)

Additional features

Speakers: 立体声, Keyboard Light: no, 12 Months Warranty

Weight

1.843 kg, Power Supply: 297 g

Sold in

DACH

Links

Lenovo homepage

Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

see all specifications

Right: 2 x USB 3.0, HDMI, RJ45 Ethernet, power adapter & OneLink docking port (below cover)

Left: Kensington lock, USB 2.0 Sleep & Charge, microphone-headphones combination

Front: 4-in-1 card reader (MMC, SD, SDHC, SDXC)


226 cd/m²	216 cd/m²	227 cd/m²
198 cd/m²	218 cd/m²	221 cd/m²
173 cd/m²	197 cd/m²	219 cd/m²

Distribution of brightness

HB140FH1 401 tested with X-Rite i1Pro 2

Maximum: 227 cd/m² (Nits) Average: 210.6 cd/m²
Brightness Distribution: 76 %
Center on Battery: 176 cd/m²
Contrast: 411:1 (Black: 0.53 cd/m²)
ΔE Color 11.16 | 0.5-29.43 Ø4.91
ΔE Greyscale 12.58 | 0.5-98 Ø5.2
61% sRGB (Argyll 1.6.3 3D)
39% AdobeRGB 1998 (Argyll 1.6.3 3D)
41.71% AdobeRGB 1998 (Argyll 2.2.0 3D)
60.8% sRGB (Argyll 2.2.0 3D)
40.37% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.34

Download ICC File (X-Rite i1Pro 2)

	Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB
Display		58%	-3%	-0%
Display P3 Coverage	40.37	66.7 65%	39.24 -3%	40.29 0%
sRGB Coverage	60.8	90.8 49%	58.9 -3%	60 -1%
AdobeRGB 1998 Coverage	41.71	66.5 59%	40.56 -3%	41.71 0%
Screen		51%	19%	15%
Brightness middle	218	331 52%	206 -6%	342 57%
Brightness	211	309 46%	202 -4%	320 52%
Brightness Distribution	76	82 8%	91 20%	86 13%
Black Level *	0.53	0.4 25%	0.39 26%	0.78 -47%
Contrast	411	828 101%	528 28%	438 7%
Colorchecker dE 2000 *	11.16	4.07 64%	6.63 41%	8.96 20%
Greyscale dE 2000 *	12.58	4.86 61%	6.29 50%	9.64 23%
Gamma	2.34 ^94%	2.49 ^88%	2.48 ^89%	2.26 ^97%
CCT	14940 ^44%	6109 ^106%	5823 ^112%	11592 ^56%
Color Space (Percent of AdobeRGB 1998)	39	59 51%	37.3 -4%	38.34 -2%
Color Space (Percent of sRGB)	61	90.6 49%
Total Average (Program / Settings)		55% / 53%	8% / 13%	8% / 11%

* ... smaller is better

Cinebench R11.5 | Cinebench R15

Cinebench R11.5
CPU Single 64Bit (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	1.23 Points
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	1.04 Points -15%
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	1.34 Points +9%
CPU Multi 64Bit (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	2.79 Points
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	2.5 Points -10%
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	3.01 Points +8%

Cinebench R15
CPU Single 64Bit (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	97 Points
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	91 Points -6%
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	115 Points +19%
Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB	100 Points +3%
CPU Multi 64Bit (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	250 Points
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	250 Points 0%
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	270 Points +8%
Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB	231 Points -8%

Cinebench R10 Rendering Single 32Bit

4059

Cinebench R11.5 CPU Single 64Bit

1.23 Points

Cinebench R11.5 CPU Multi 64Bit

2.79 Points

Cinebench R11.5 OpenGL 64Bit

37.1 fps

Cinebench R15 CPU Single 64Bit

97 Points

Cinebench R15 CPU Multi 64Bit

250 Points

Cinebench R15 OpenGL 64Bit

36.19 fps

Cinebench R15 Ref. Match 64Bit

98 %

Help

... in comparison

	Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB
PCMark 7		-16%	-48%	-64%
Productivity	3871	3353 -13%	1669 -57%	1354 -65%
Computation	13993	9125 -35%	9964 -29%	5020 -64%
Score	4797	4046 -16%	2753 -43%	2077 -57%
System Storage	5062	5161 2%	1920 -62%	1454 -71%
PCMark 8		-12%	-15%
Work Score Accelerated v2	4186	3698 -12%	3704 -12%
Home Score Accelerated v2	3299	2919 -12%	2708 -18%
Total Average (Program / Settings)		-14% / -14%	-32% / -37%	-64% / -64%

PCMark 7 Score		4797 points
PCMark 8 Home Score Accelerated v2		3299 points
PCMark 8 Work Score Accelerated v2		4186 points
Help

... in comparison

	Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB
CrystalDiskMark 3.0		69%	-84%	-89%
Write Seq	178.4	343.2 92%	113 -37%	80.7 -55%
Read 512	320.8	336.8 5%	34.03 -89%	27.07 -92%
Write 512	169.1	346.8 105%	53.2 -69%	33.62 -80%
Read 4k	19.49	28.73 47%	0.366 -98%	0.326 -98%
Write 4k	37.27	66.4 78%	0.653 -98%	0.707 -98%
Read 4k QD32	96.1	91.6 -5%	0.721 -99%	0.661 -99%
Write 4k QD32	36.91	95.7 159%	0.661 -98%	0.705 -98%
AS SSD		143%
Score Read	155	277 79%
Score Write	73	260 256%
Score Total	299	682 128%
4K Read	17.98	31.82 77%
4K Write	33.71	58 72%
Seq Read	496.8	502 1%
Seq Write	166.2	324.6 95%
4K-64 Read	87.5	194.7 123%
4K-64 Write	23.12	169.2 632%
Access Time Read *	0.189	0.106 44%
Access Time Write *	0.176	0.062 65%
Total Average (Program / Settings)		106% / 114%	-84% / -84%	-89% / -89%

* ... smaller is better

CrystalDiskMark 3.0

AS SSD

Samsung CM871 MZ7LF192HCGS

Sequential Read: 507 MB/s

Sequential Write: 178.4 MB/s

512K Read: 320.8 MB/s

512K Write: 169.1 MB/s

4K Read: 19.49 MB/s

4K Write: 37.27 MB/s

4K QD32 Read: 96.1 MB/s

4K QD32 Write: 36.91 MB/s

3DMark 11 | 3DMark

3DMark 11
1280x720 Performance (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	2042 Points
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	1183 Points -42%
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	910 Points -55%
Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB	1929 Points -6%
HP Pavilion 15-p151ng Radeon R7 M260, A10-5745M, Seagate ST1000LM014 Solid State Hybrid Drive	1904 Points -7%
Toshiba Satellite Pro C70-B-111 Radeon R7 M260, 4200U, TOSHIBA MQ01ABD075	1966 Points -4%
1280x720 Performance GPU (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	1956 Points
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	1084 Points -45%
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	835 Points -57%
Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB	1847 Points -6%
HP Pavilion 15-p151ng Radeon R7 M260, A10-5745M, Seagate ST1000LM014 Solid State Hybrid Drive	1937 Points -1%
Toshiba Satellite Pro C70-B-111 Radeon R7 M260, 4200U, TOSHIBA MQ01ABD075	1877 Points -4%
1280x720 Performance Physics (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	3333 Points
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	3287 Points -1%
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	2982 Points -11%
Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB	3412 Points +2%
HP Pavilion 15-p151ng Radeon R7 M260, A10-5745M, Seagate ST1000LM014 Solid State Hybrid Drive	2103 Points -37%
Toshiba Satellite Pro C70-B-111 Radeon R7 M260, 4200U, TOSHIBA MQ01ABD075	3423 Points +3%
1280x720 Performance Combined (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	1635 Points
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	1055 Points -35%
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	670 Points -59%
Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB	1464 Points -10%
HP Pavilion 15-p151ng Radeon R7 M260, A10-5745M, Seagate ST1000LM014 Solid State Hybrid Drive	1505 Points -8%
Toshiba Satellite Pro C70-B-111 Radeon R7 M260, 4200U, TOSHIBA MQ01ABD075	1533 Points -6%

3DMark
1280x720 Cloud Gate Standard Score (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	4884 Points
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	5000 Points +2%
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	4322 Points -12%
Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB	5048 Points +3%
HP Pavilion 15-p151ng Radeon R7 M260, A10-5745M, Seagate ST1000LM014 Solid State Hybrid Drive	3902 Points -20%
Toshiba Satellite Pro C70-B-111 Radeon R7 M260, 4200U, TOSHIBA MQ01ABD075	4406 Points -10%
1280x720 Cloud Gate Standard Graphics (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	6178 Points
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	6809 Points +10%
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	4917 Points -20%
Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB	7259 Points +17%
HP Pavilion 15-p151ng Radeon R7 M260, A10-5745M, Seagate ST1000LM014 Solid State Hybrid Drive	5603 Points -9%
Toshiba Satellite Pro C70-B-111 Radeon R7 M260, 4200U, TOSHIBA MQ01ABD075	5777 Points -6%
1280x720 Cloud Gate Standard Physics (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	2819 Points
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	2591 Points -8%
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	3037 Points +8%
Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB	2444 Points -13%
HP Pavilion 15-p151ng Radeon R7 M260, A10-5745M, Seagate ST1000LM014 Solid State Hybrid Drive	1892 Points -33%
Toshiba Satellite Pro C70-B-111 Radeon R7 M260, 4200U, TOSHIBA MQ01ABD075	2408 Points -15%

3DMark 11 Performance		2042 points
3DMark Ice Storm Standard Score		42260 points
3DMark Cloud Gate Standard Score		4884 points
3DMark Fire Strike Score		1036 points
Help

... in comparison

Alien: Isolation | F1 2014 | Battlefield Hardline

Alien: Isolation
1024x768 (Very) Low, Off, Shadow Map 512 AF:1x (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	26.4 fps
1366x768 Medium, On (AA & SSAO Off), Shadow Map 1024 AF:4x (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	18.5 fps
1920x1080 High, On, Shadow Map 1536, Standard SSAO AA:FX AF:8x (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	9.75 fps

F1 2014
1366x768 Medium Preset (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	26 fps
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	33 fps +27%
1920x1080 High Preset (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	18 fps
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	22 fps +22%
1920x1080 Ultra Preset AA:4x MS (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	12 fps
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	13 fps +8%

Battlefield Hardline
1024x768 Low Graphics Quality (DX11) (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	49.3 fps
1366x768 Medium Graphics Quality (DX11) (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	34.7 fps
1920x1080 High Graphics Quality (DX11) (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	11.6 fps

	low	med.	high	ultra
Alien: Isolation (2014)	26.4	18.5	9.75	7.5
F1 2014 (2014)		26	18	12
Battlefield Hardline (2015)	49.3	34.7	11.6

	Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB
Noise		10%	10%	3%
Idle Minimum *	29.6	29.6 -0%	30.8 -4%	31.8 -7%
Idle Average *	34.5	29.6 14%	30.8 11%	31.8 8%
Idle Maximum *	34.8	30.2 13%	30.8 11%	33.6 3%
Load Average *	40.3	35.6 12%	34.3 15%	35.1 13%
Load Maximum *	40.3	35.9 11%	34.3 15%	40.6 -1%

* ... smaller is better

Noise Level

Idle		29.6 / 34.5 / 34.8 dB(A)
Load		40.3 / 40.3 dB(A)

	30 dB silent 40 dB(A) audible 50 dB(A) loud
min: , med: , max: Voltcraft sl-320 (15 cm distance)

	Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB
Heat		4%	7%	2%
Maximum Upper Side *	48.9	41.6 15%	36.9 25%	44.3 9%
Maximum Bottom *	54.3	41.7 23%	39.6 27%	46.9 14%
Idle Upper Side *	25.6	30.6 -20%	28.7 -12%	27.3 -7%
Idle Bottom *	26.6	27.5 -3%	30.1 -13%	29 -9%

* ... smaller is better

Max. Load

Idle


46.5 °C	48.3 °C	30.2 °C
48.9 °C	41.6 °C	29 °C
25.4 °C	25.3 °C	25.8 °C

Maximum: 48.9 °C
Average: 35.7 °C


27.7 °C	47.2 °C	54.3 °C
26.5 °C	37.8 °C	42.4 °C
25.9 °C	25.5 °C	27.8 °C

Maximum: 54.3 °C
Average: 35 °C

Power Supply (max.) 51.9 °C | Room Temperature 21.9 °C | Voltcraft IR-360

(±) The average temperature for the upper side under maximal load is 35.7 °C / 96 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 48.9 °C / 120 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 54.3 °C / 130 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 24.6 °C / 76 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 25.8 °C / 78.4 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 (+1.8 °C / 3.3 F).

	Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB
Power Consumption		12%	10%	-1%
Idle Minimum *	2.6	3.2 -23%	3.4 -31%
Idle Average *	7.7	6.3 18%	6.1 21%	7.5 3%
Idle Maximum *	8.7	8.6 1%	7 20%	8.3 5%
Load Average *	43.1	30.3 30%	29 33%	43.6 -1%
Load Maximum *	45.4	30.4 33%	42.4 7%	49.3 -9%

* ... smaller is better

Power Consumption

Off / Standby	0.2 / 0.2 Watt
Idle	2.6 / 7.7 / 8.7 Watt
Load	43.1 / 45.4 Watt


Key: min: , med: , max: Voltcraft VC 960

Battery Runtime
Reader / Idle (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	999 min
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	1143 min
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	798 min
WiFi v1.3 (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	409 min
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	535 min
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	288 min
Load (sort by value)
Lenovo ThinkPad E450 20DDS01E00 Radeon R7 M260, 5200U, Samsung CM871 MZ7LF192HCGS	115 min
Acer TravelMate P645-S-58HK HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD	113 min
Lenovo Thinkpad L450 20DS0001GE HD Graphics 5500, 5300U, Seagate ST500LM021-1KJ15	97 min
Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB	130 min
WiFi (sort by value)
Dell Latitude 3440 GeForce GT 740M, 4200U, Seagate Momentus ST750LM022 HN-M750MB	498 min

Battery Runtime

Idle (without WLAN, min brightness)		16h 39min
WiFi Websurfing		6h 49min
Load (maximum brightness)		1h 55min

Pros

+ 紧凑的尺寸

+ 全高清分辨率

+ 长电池续航

+ 安静节能

+ 高质量麦克风

+ 高性能固态硬盘

+ 拓展坞接口

+ 不错的输入设备

Cons

- TFT屏幕亮度低，特别是在使用电池时

- 对于最新游戏捉襟见肘

- 难以打开的维护底盖

- 固定，难以更换的电池

- 较差的摄像头

In review: Lenovo ThinkPad E450 20DDS01E00. Test model provided by CampusPoint.

总分80%，联想ThinkPad E450的表现十分全面。固态硬盘结合实惠的15瓦处理器保证了长电池续航和安静低功耗的运行。全高清的屏幕提供了充足的显示空间。高质量的输入设备继承自更高端的T系列ThinkPad，提供了出色的反馈，同时OneLink拓展坞接口为学生的书桌带来了专业笔记本体验。

这也是联想为它配备适合游戏的Radeon显卡所指向的用户群体。当然，办公用户可能并不需要它，而更需要固态硬盘，这个愿望也由其中的2.5寸三星硬盘实现了。

不过，摆在我们面前的并不是一款完美的14寸设备。较低的TFT屏幕亮度，特别是在使用电池时给我们带来了不小的困扰。磨砂的屏幕表面有些帮助，不过并不大，如果屏幕太暗的话在阳台使用就成为了不可能的事情。它的可维护性（固定电池，风扇无法清理）也十分有限。加上有问题的维护底盖（卡扣损坏），生产商是否真的用心考虑了这些方面也让人怀疑。如果你可以接受这些，也不需要高速固态硬盘或色彩绚丽的屏幕的话，那么它会是一款十分适合校园生活的高性价比选择。

需要更高质量屏幕的用户可以考虑Acer TravelMate P645-S，不过它的售价更高。这款14寸设备有不同的配置型号可选，售价也不尽相同。如果你不介意ThinkPad L450的更高重量的话，它会带来更好的可维护性。不过，它的全高清屏幕也不尽理想，但IPS技术带来了更宽的可视角度和更好的色彩。戴尔Latitude 3440也是一个可以考虑的选择，不过我们并不推荐，因为它所使用的GeForce GT 740M已经有些过时。另外它的输入设备也不是非常实用。

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。

Lenovo ThinkPad E450 20DDS01E00 - 07/05/2015 v4 ^(old)
Sebastian Jentsch

Chassis

72 / 98 → 73%

Keyboard

87%

Pointing Device

81%

Connectivity

62 / 80 → 78%

Weight

65 / 20-67 → 96%