Notebookcheck

戴尔 Latitude 5280 (7200U, HD) 笔记本电脑简短评测

Allen Ngo (translated by Yuchen Wang), 06/02/2017
Notebook Business Windows Kaby Lake

小强人。 戴尔为这款机型设计了一个全新的更轻盈机身,而较老的E-Port也成为了过去式。但是由于缺少对Thunderbolt 3的支持,这台Latitude笔记本电脑的扩展坞连接性会受到严重限制。

Dell Latitude 5280 (Latitude Series)
Processor
Intel Core i5-7200U
Graphics adapter
Intel HD Graphics 620, Core: 300 MHz, 21.20.16.4627
Memory
4096 MB 
, DDR4-2400, PC4-19200, 17-17-17-39
Display
12.5 inch 16:9, 1366x768 pixel 125 PPI, TN LED, ID: AUO106C, Name: AU Optronics B125XW01 V0 (B125XTN), Dell P/N: 9X5G1, glossy: no
Mainboard
Intel Kaby Lake-U iHDCP 2.2 Premium PCH
Storage
Toshiba MQ01ACF050, 500 GB 
, 7200 rpm
Soundcard
Intel Kaby Lake-U/Y PCH - High Definition Audio
Connections
3 USB 3.0 / 3.1 Gen1, 1 HDMI, Audio Connections: 3.5毫米整合音频接口, Card Reader: MicroSD 读卡器, Brightness Sensor
Networking
Intel Ethernet Connection I219-LM (10/100/1000MBit), Atheros/Qualcomm QCA6174 (a/b/g/n/ac), Bluetooth 4.1
Size
height x width x depth (in mm): 21.4 x 305.2 x 211.3
Battery
51 Wh Lithium-Polymer
Operating System
Microsoft Windows 10 Pro 64 Bit
Camera
Webcam: 720p
Additional features
Speakers: 立体声, Keyboard: 孤岛式, Keyboard Light: yes, 12 Months Warranty
Weight
1.36 kg, Power Supply: 290 g
Price
950 USD

 

Front: No connectivity
Front: No connectivity
Right: 3.5 mm headphones, USB 3.0, VGA-out, Gigabit RJ-45, Noble Lock
Right: 3.5 mm headphones, USB 3.0, VGA-out, Gigabit RJ-45, Noble Lock
Rear: SIM slot, MicroSD reader
Rear: SIM slot, MicroSD reader
Left: AC adapter, USB Type-C (+ DisplayPort support), HDMI, USB 3.0
Left: AC adapter, USB Type-C (+ DisplayPort support), HDMI, USB 3.0
SDCardreader Transfer Speed
average JPG Copy Test (av. of 3 runs)
Lenovo ThinkPad X270-20HMS00T00
62.2 MB/s ∼100% +37%
HP EliteBook 725 G4
60.5 MB/s ∼97% +33%
Dell Latitude 5280
45.51 MB/s ∼73%
maximum AS SSD Seq Read Test (1GB)
Dell Latitude 5280
92 MB/s ∼100%
Lenovo ThinkPad X270-20HMS00T00
88 MB/s ∼96% -4%
HP EliteBook 725 G4
81.6 MB/s ∼89% -11%
Networking
iperf3 Client (receive) TCP 1 m 4M x10
Lenovo ThinkPad X270-20HMS00T00
Intel Dual Band Wireless-AC 8265
671 MBit/s ∼100% +3%
Dell Latitude 5280
Atheros/Qualcomm QCA6174
650 MBit/s ∼97%
Dell Latitude 5289
Intel Dual Band Wireless-AC 8265
579 MBit/s ∼86% -11%
iperf3 Client (transmit) TCP 1 m 4M x10
Lenovo ThinkPad X270-20HMS00T00
Intel Dual Band Wireless-AC 8265
512 MBit/s ∼100% +3%
Dell Latitude 5289
Intel Dual Band Wireless-AC 8265
502 MBit/s ∼98% +1%
Dell Latitude 5280
Atheros/Qualcomm QCA6174
497 MBit/s ∼97%
239.4
cd/m²
230.9
cd/m²
249
cd/m²
245.7
cd/m²
251.8
cd/m²
251.3
cd/m²
248.9
cd/m²
256.6
cd/m²
242.9
cd/m²
Distribution of brightness
X-Rite i1Pro Basic 2
Maximum: 256.6 cd/m² Average: 246.3 cd/m² Minimum: 16.29 cd/m²
Brightness Distribution: 90 %
Center on Battery: 251.8 cd/m²
Contrast: 336:1 (Black: 0.75 cd/m²)
ΔE Color 11.3 | - Ø
ΔE Greyscale 13.2 | - Ø
59.2% sRGB (Argyll) 37.6% AdobeRGB 1998 (Argyll)
Gamma: 2.05
Dell Latitude 5280
TN LED, 12.5, 1366x768
Dell Latitude 5289
BOE NV12N51, IPS LED, 12.5, 1920x1080
Lenovo ThinkPad X270-20HMS00T00
Innolux N125HCE-GN1, IPS LED, 12.5, 1920x1080
HP EliteBook 725 G4
AU Optronics, IPS, 12.5, 1920x1080
Dell Latitude 12 E5270
BOE05F4, TN, 12.5, 1366x768
Response Times
-17%
-14%
-8%
-6%
Response Time Grey 50% / Grey 80% *
42 (21.2, 20.8)
42 (22, 20)
-0%
40.8 (21.2, 19.6)
3%
47 (27, 20)
-12%
45.2 (22.4, 22.8)
-8%
Response Time Black / White *
23.2 (17.2, 6)
31 (18, 13)
-34%
30.4 (16.4, 14)
-31%
24 (14, 10)
-3%
24 (6.8, 17.2)
-3%
PWM Frequency
531 (90)
26040 (50)
1000 (90)
Screen
57%
56%
88%
14%
Brightness
246
320
30%
281
14%
310
26%
152
-38%
Brightness Distribution
90
90
0%
94
4%
88
-2%
90
0%
Black Level *
0.75
0.34
55%
0.25
67%
0.19
75%
0.29
61%
Contrast
336
988
194%
1132
237%
1732
415%
555
65%
Colorchecker DeltaE2000 *
11.3
3.45
69%
6.1
46%
2.69
76%
10.31
9%
Greyscale DeltaE2000 *
13.2
1.68
87%
6
55%
4.23
68%
11.3
14%
Gamma
2.05 117%
2.49 96%
2.05 117%
2.21 109%
2.57 93%
CCT
14912 44%
6782 96%
6832 95%
6011 108%
13574 48%
Color Space (Percent of AdobeRGB 1998)
37.6
41
9%
42.26
12%
46
22%
37.32
-1%
Color Space (Percent of sRGB)
59.2
64
8%
65.43
11%
72
22%
58.82
-1%
Total Average (Program / Settings)
20% / 42%
21% / 42%
40% / 69%
4% / 10%

* ... smaller is better

Display Response Times

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.
       Response Time Black to White
23.2 ms ... rise ↗ and fall ↘ combined↗ 17.2 ms rise
↘ 6 ms fall
The screen shows good response rates in our tests, but may be too slow for competitive gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 26 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (26.7 ms).
       Response Time 50% Grey to 80% Grey
42 ms ... rise ↗ and fall ↘ combined↗ 21.2 ms rise
↘ 20.8 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.9 (minimum) to 636 (maximum) ms. » 52 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (42.8 ms).

Screen Flickering / PWM (Pulse-Width Modulation)

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.
Screen flickering / PWM not detected

In comparison: 57 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 6562 (minimum: 43 - maximum: 142900) Hz was measured.

 
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330Tooltip
Cinebench R15 CPU Multi 64 Bit
Cinebench R15
CPU Single 64Bit
Dell Latitude 7280
Intel Core i7-7600U
164 Points ∼84% +27%
Asus Zenbook UX3410UQ-GV077T
Intel Core i7-7500U
147 Points ∼75% +14%
Lenovo ThinkPad T470s-20HF0012US
Intel Core i5-7300U
143 Points ∼73% +11%
Lenovo ThinkPad T460s-20FA003GGE
Intel Core i7-6600U
141 Points ∼72% +9%
Dell Latitude 5280
Intel Core i5-7200U
129 Points ∼66%
Dell Latitude 5580
Intel Core i5-7200U
127 Points ∼65% -2%
Dell Latitude E7470 N001LE747014EMEA
Intel Core i5-6300U
110 Points ∼56% -15%
Lenovo Thinkpad 13-20J1001BUS
Intel Core i3-7100U
86 Points ∼44% -33%
HP EliteBook 725 G4
AMD PRO A12-9800B
77 Points ∼39% -40%
CPU Multi 64Bit
Lenovo ThinkPad T470s-20HF0012US
Intel Core i5-7300U
369 Points ∼17% +13%
Dell Latitude 7280
Intel Core i7-7600U
351 Points ∼16% +7%
Lenovo ThinkPad T460s-20FA003GGE
Intel Core i7-6600U
347 Points ∼16% +6%
Asus Zenbook UX3410UQ-GV077T
Intel Core i7-7500U
331 Points ∼15% +1%
Dell Latitude 5280
Intel Core i5-7200U
328 Points ∼15%
Dell Latitude 5580
Intel Core i5-7200U
327 Points ∼15% 0%
Dell Latitude E7470 N001LE747014EMEA
Intel Core i5-6300U
308 Points ∼14% -6%
Lenovo Thinkpad 13-20J1001BUS
Intel Core i3-7100U
256 Points ∼12% -22%
HP EliteBook 725 G4
AMD PRO A12-9800B
229 Points ∼11% -30%
Cinebench R11.5
CPU Single 64Bit
Dell Latitude 7280
Intel Core i7-7600U
1.87 Points ∼85% +27%
Lenovo ThinkPad T470s-20HF0012US
Intel Core i5-7300U
1.59 Points ∼72% +8%
Lenovo ThinkPad T460s-20FA003GGE
Intel Core i7-6600U
1.57 Points ∼71% +7%
Dell Latitude 5280
Intel Core i5-7200U
1.47 Points ∼67%
Dell Latitude 5580
Intel Core i5-7200U
1.46 Points ∼66% -1%
Lenovo Thinkpad 13-20J1001BUS
Intel Core i3-7100U
1.03 Points ∼47% -30%
HP EliteBook 725 G4
AMD PRO A12-9800B
0.86 Points ∼39% -41%
CPU Multi 64Bit
Lenovo ThinkPad T470s-20HF0012US
Intel Core i5-7300U
4.13 Points ∼17% +13%
Dell Latitude 7280
Intel Core i7-7600U
3.89 Points ∼16% +6%
Lenovo ThinkPad T460s-20FA003GGE
Intel Core i7-6600U
3.83 Points ∼16% +4%
Dell Latitude 5280
Intel Core i5-7200U
3.67 Points ∼15%
Dell Latitude 5580
Intel Core i5-7200U
3.65 Points ∼15% -1%
Lenovo Thinkpad 13-20J1001BUS
Intel Core i3-7100U
2.85 Points ∼12% -22%
HP EliteBook 725 G4
AMD PRO A12-9800B
2.47 Points ∼10% -33%
Cinebench R10
Rendering Single 32Bit
Asus Zenbook UX3410UQ-GV077T
Intel Core i7-7500U
5706 Points ∼64% +14%
Lenovo ThinkPad T460s-20FA003GGE
Intel Core i7-6600U
5264 Points ∼59% +5%
Dell Latitude 5580
Intel Core i5-7200U
4999 Points ∼56% 0%
Dell Latitude 5280
Intel Core i5-7200U
4999 Points ∼56%
Lenovo Thinkpad 13-20J1001BUS
Intel Core i3-7100U
3871 Points ∼44% -23%
HP EliteBook 725 G4
AMD PRO A12-9800B
2621 Points ∼30% -48%
Rendering Multiple CPUs 32Bit
Lenovo ThinkPad T460s-20FA003GGE
Intel Core i7-6600U
11798 Points ∼24% +4%
Asus Zenbook UX3410UQ-GV077T
Intel Core i7-7500U
11455 Points ∼23% +1%
Dell Latitude 5280
Intel Core i5-7200U
11292 Points ∼23%
Dell Latitude 5580
Intel Core i5-7200U
11214 Points ∼23% -1%
Lenovo Thinkpad 13-20J1001BUS
Intel Core i3-7100U
8718 Points ∼18% -23%
HP EliteBook 725 G4
AMD PRO A12-9800B
6854 Points ∼14% -39%
wPrime 2.0x - 1024m
Lenovo Thinkpad 13-20J1001BUS
Intel Core i3-7100U
644.6 s * ∼8% -38%
Dell Latitude E7470 N001LE747014EMEA
Intel Core i5-6300U
522.696 s * ∼6% -12%
Dell Latitude 7280
Intel Core i7-7600U
482 s * ∼6% -3%
HP EliteBook 725 G4
AMD PRO A12-9800B
475.655 s * ∼6% -2%
Dell Latitude 5580
Intel Core i5-7200U
468.972 s * ∼6% -0%
Dell Latitude 5280
Intel Core i5-7200U
467.287 s * ∼6%
Lenovo ThinkPad T470s-20HF0012US
Intel Core i5-7300U
446.9 s * ∼5% +4%
Super Pi Mod 1.5 XS 32M - ---
HP EliteBook 725 G4
AMD PRO A12-9800B
907.625 Seconds * ∼4% -38%
Lenovo Thinkpad 13-20J1001BUS
Intel Core i3-7100U
817.6 Seconds * ∼4% -25%
Dell Latitude E7470 N001LE747014EMEA
Intel Core i5-6300U
659.555 Seconds * ∼3% -1%
Dell Latitude 5580
Intel Core i5-7200U
656.348 Seconds * ∼3% -0%
Dell Latitude 5280
Intel Core i5-7200U
655.742 Seconds * ∼3%
Lenovo ThinkPad T460s-20FA003GGE
Intel Core i7-6600U
571.685 Seconds * ∼3% +13%
Lenovo ThinkPad T470s-20HF0012US
Intel Core i5-7300U
560 Seconds * ∼2% +15%
Dell Latitude 7280
Intel Core i7-7600U
526 Seconds * ∼2% +20%

* ... smaller is better

Cinebench R10 Shading 32Bit
7829
Cinebench R10 Rendering Multiple CPUs 32Bit
11292
Cinebench R10 Rendering Single 32Bit
4999
Cinebench R11.5 OpenGL 64Bit
26.68 fps
Cinebench R11.5 CPU Multi 64Bit
3.67 Points
Cinebench R11.5 CPU Single 64Bit
1.47 Points
Cinebench R15 Ref. Match 64Bit
97.7 %
Cinebench R15 OpenGL 64Bit
35.12 fps
Cinebench R15 CPU Multi 64Bit
328 Points
Cinebench R15 CPU Single 64Bit
129 Points
Help
PCMark 8
Work Score Accelerated v2
Dell Latitude 5289
HD Graphics 620, 7300U, SanDisk X400 256GB, SATA (SD8SB8U-256G)
4681 Points ∼72% +7%
Lenovo ThinkPad X270-20HMS00T00
HD Graphics 620, 7200U, Toshiba NVMe THNSF5512GPUK
4660 Points ∼72% +7%
Dell Latitude 5280
HD Graphics 620, 7200U, Toshiba MQ01ACF050
4365 Points ∼67%
Dell Latitude 12 E5270
HD Graphics 520, 6300U, Seagate ST500LM021-1KJ15
4273 Points ∼66% -2%
HP EliteBook 725 G4
Radeon R7 (Bristol Ridge), PRO A12-9800B, Samsung PM961 MZVLW256HEHP
3885 Points ∼60% -11%
Creative Score Accelerated v2
Dell Latitude 5280
HD Graphics 620, 7200U, Toshiba MQ01ACF050
3928 Points ∼42%
Dell Latitude 12 E5270
HD Graphics 520, 6300U, Seagate ST500LM021-1KJ15
3588 Points ∼39% -9%
HP EliteBook 725 G4
Radeon R7 (Bristol Ridge), PRO A12-9800B, Samsung PM961 MZVLW256HEHP
3313 Points ∼36% -16%
Home Score Accelerated v2
Lenovo ThinkPad X270-20HMS00T00
HD Graphics 620, 7200U, Toshiba NVMe THNSF5512GPUK
3575 Points ∼60% +5%
Dell Latitude 5289
HD Graphics 620, 7300U, SanDisk X400 256GB, SATA (SD8SB8U-256G)
3554 Points ∼59% +4%
Dell Latitude 5280
HD Graphics 620, 7200U, Toshiba MQ01ACF050
3409 Points ∼57%
Dell Latitude 12 E5270
HD Graphics 520, 6300U, Seagate ST500LM021-1KJ15
3291 Points ∼55% -3%
HP EliteBook 725 G4
Radeon R7 (Bristol Ridge), PRO A12-9800B, Samsung PM961 MZVLW256HEHP
2665 Points ∼45% -22%
PCMark 8 Home Score Accelerated v2
3409 points
PCMark 8 Creative Score Accelerated v2
3928 points
PCMark 8 Work Score Accelerated v2
4365 points
Help
Dell Latitude 5280
Toshiba MQ01ACF050
Dell Latitude 5289
SanDisk X400 256GB, SATA (SD8SB8U-256G)
Lenovo ThinkPad X270-20HMS00T00
Toshiba NVMe THNSF5512GPUK
HP EliteBook 725 G4
Samsung PM961 MZVLW256HEHP
Dell Latitude 12 E5270
Seagate ST500LM021-1KJ15
CrystalDiskMark 3.0
9086%
18751%
6641%
-1%
Write 4k QD32
0.795
158.8
19875%
418.3
52516%
100.2
12504%
0.636
-20%
Read 4k QD32
0.737
306.2
41447%
495.3
67105%
139.7
18855%
0.798
8%
Write 4k
0.827
27.92
3276%
124.5
14954%
47.35
5626%
0.654
-21%
Read 4k
0.357
22.73
6267%
35.27
9780%
29.75
8233%
0.398
11%
Write 512
45.49
255.6
462%
527.8
1060%
890.1
1857%
51.9
14%
Read 512
31.13
260.8
738%
857.5
2655%
948.7
2948%
24.9
-20%
Write Seq
95.28
406.4
327%
984.6
933%
1409
1379%
108.5
14%
Read Seq
107.5
423.7
294%
1190
1007%
1963
1726%
113.8
6%
Toshiba MQ01ACF050
Transfer Rate Minimum: 53.5 MB/s
Transfer Rate Maximum: 125 MB/s
Transfer Rate Average: 104.5 MB/s
Access Time: 16 ms
Burst Rate: 237.9 MB/s
CPU Usage: 1.7 %
3DMark 11
1280x720 Performance Combined
Intel Skull Canyon NUC6i7KYK
Intel Iris Pro Graphics 580, 6770HQ
2784 Points ∼17% +212%
Dell Latitude 7480
Intel HD Graphics 620, 7600U
1530 Points ∼10% +72%
Acer Swift 3 SF314-51-731X
Intel HD Graphics 520, 6500U
1519 Points ∼10% +70%
Dell XPS 13 9365-4537 2-in-1
Intel HD Graphics 615, 7Y54
1024 Points ∼6% +15%
Dell Latitude 5280
Intel HD Graphics 620, 7200U
892 Points ∼6%
Dell Latitude 5580
Intel HD Graphics 620, 7200U
891 Points ∼6% 0%
Lenovo Yoga 900S-12ISK-80ML
Intel HD Graphics 515, 6Y54
778 Points ∼5% -13%
1280x720 Performance GPU
Intel Skull Canyon NUC6i7KYK
Intel Iris Pro Graphics 580, 6770HQ
3220 Points ∼6% +146%
Dell Latitude 7480
Intel HD Graphics 620, 7600U
1648 Points ∼3% +26%
Acer Swift 3 SF314-51-731X
Intel HD Graphics 520, 6500U
1475 Points ∼3% +13%
Dell Latitude 5280
Intel HD Graphics 620, 7200U
1309 Points ∼3%
Dell Latitude 5580
Intel HD Graphics 620, 7200U
1281 Points ∼3% -2%
Dell XPS 13 9365-4537 2-in-1
Intel HD Graphics 615, 7Y54
1175 Points ∼2% -10%
Lenovo Yoga 900S-12ISK-80ML
Intel HD Graphics 515, 6Y54
803 Points ∼2% -39%
3DMark
1920x1080 Fire Strike Graphics
Intel Skull Canyon NUC6i7KYK
Intel Iris Pro Graphics 580, 6770HQ
1903 Points ∼5% +183%
Dell Latitude 7480
Intel HD Graphics 620, 7600U
1008 Points ∼2% +50%
Dell Latitude 5280
Intel HD Graphics 620, 7200U
672 Points ∼2%
Dell Latitude 5580
Intel HD Graphics 620, 7200U
663 Points ∼2% -1%
Lenovo Yoga 900S-12ISK-80ML
Intel HD Graphics 515, 6Y54
504 Points ∼1% -25%
1280x720 Cloud Gate Standard Graphics
Intel Skull Canyon NUC6i7KYK
Intel Iris Pro Graphics 580, 6770HQ
14594 Points ∼9% +136%
Dell Latitude 7480
Intel HD Graphics 620, 7600U
8555 Points ∼5% +38%
Acer Swift 3 SF314-51-731X
Intel HD Graphics 520, 6500U
7361 Points ∼5% +19%
Dell Latitude 5280
Intel HD Graphics 620, 7200U
6189 Points ∼4%
Dell Latitude 5580
Intel HD Graphics 620, 7200U
6152 Points ∼4% -1%
Lenovo Yoga 900S-12ISK-80ML
Intel HD Graphics 515, 6Y54
4309 Points ∼3% -30%
1920x1080 Ice Storm Extreme Graphics
Intel Skull Canyon NUC6i7KYK
Intel Iris Pro Graphics 580, 6770HQ
98218 Points ∼13% +188%
Dell Latitude 7480
Intel HD Graphics 620, 7600U
48374 Points ∼7% +42%
Dell Latitude 5280
Intel HD Graphics 620, 7200U
34077 Points ∼5%
Dell Latitude 5580
Intel HD Graphics 620, 7200U
33478 Points ∼5% -2%
Lenovo Yoga 900S-12ISK-80ML
Intel HD Graphics 515, 6Y54
22497 Points ∼3% -34%
3DMark 11 Performance
1378 points
3DMark Ice Storm Standard Score
49846 points
3DMark Cloud Gate Standard Score
5281 points
3DMark Fire Strike Score
633 points
Help
low med. high ultra
BioShock Infinite (2013) 29.920.918fps
Rise of the Tomb Raider (2016) 14fps

Noise Level

Idle
32.6 / 32.7 / 32.7 dB(A)
HDD
33 dB(A)
Load
33.4 / 37 dB(A)
 
 
 
30 dB
silent
40 dB(A)
audible
50 dB(A)
loud
 
min: dark, med: mid, max: light   BK Precision 732A (15 cm distance)   environment noise: 27.6 dB(A)
Dell Latitude 5280
HD Graphics 620, 7200U, Toshiba MQ01ACF050
Dell Latitude 5289
HD Graphics 620, 7300U, SanDisk X400 256GB, SATA (SD8SB8U-256G)
Lenovo ThinkPad X270-20HMS00T00
HD Graphics 620, 7200U, Toshiba NVMe THNSF5512GPUK
HP EliteBook 725 G4
Radeon R7 (Bristol Ridge), PRO A12-9800B, Samsung PM961 MZVLW256HEHP
Dell Latitude 12 E5270
HD Graphics 520, 6300U, Seagate ST500LM021-1KJ15
Noise
1%
3%
4%
-1%
off / environment *
27.6
30.5
-11%
29
-5%
30.4
-10%
29.2
-6%
Idle Minimum *
32.6
30.5
6%
29
11%
30.4
7%
32.9
-1%
Idle Average *
32.7
30.5
7%
29
11%
30.4
7%
32.9
-1%
Idle Maximum *
32.7
30.5
7%
30.4
7%
30.4
7%
32.9
-1%
Load Average *
33.4
36
-8%
34.1
-2%
31.7
5%
33.7
-1%
Load Maximum *
37
34.6
6%
37.6
-2%
34.4
7%
34.9
6%

* ... smaller is better

Max. Load
 40 °C42.4 °C48.4 °C 
 36.2 °C38.2 °C30.8 °C 
 26.8 °C27.4 °C28.4 °C 
Maximum: 48.4 °C
Average: 35.4 °C
36.8 °C49.2 °C41.4 °C
29.8 °C43.4 °C42 °C
30.2 °C28.2 °C29.4 °C
Maximum: 49.2 °C
Average: 36.7 °C
Power Supply (max.)  32 °C | Room Temperature 21 °C | Fluke 62 Mini IR Thermometer
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2039.240.42536.333.33134.536.14034.233.9503233.26332.532.58031.73210030.430.812530.331.516028.544.520027.953.225027.253.931526.649.340026.152.150026.155.263025.362.580026.868100026.364.1125025.361.7160024.765.320002466.1250023.867.9315023.768.8400023.572.5500023.370.2630023.264800023.269.91000023.175.61250023.176.11600023.471.8SPL36.781.1N2.847.4median 25.3Dell Latitude 5280median 64.1Delta1.67.835.335.132.931.831.83236.535.132.428.93328.936.328.848.32761.52752.924.860.92462.822.763.32269.521.267.82174.82075.919.472.718.97117.770.117.86917.671.817.668.117.671.417.673.717.670.417.571.617.671.617.669.617.459.717.583.630.662.51.5median 69.6Apple MacBook 12 (Early 2016) 1.1 GHzmedian 17.84.62.4hearing rangehide median Pink Noise
Dell Latitude 5280 audio analysis

(±) | speaker loudness is average but good (81.05 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 20.2% lower than median
(±) | linearity of bass is average (12.4% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4% away from median
(±) | linearity of mids is average (9.5% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.8% higher than median
(±) | linearity of highs is average (9.8% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (23.9% difference to median)
Compared to same class
» 77% of all tested devices in this class were better, 8% similar, 15% worse
» The best had a delta of 9%, average was 19%, worst was 41%
Compared to all devices tested
» 61% of all tested devices were better, 9% similar, 30% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Apple MacBook 12 (Early 2016) 1.1 GHz audio analysis

(+) | speakers can play relatively loud (83.6 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 11.3% lower than median
(±) | linearity of bass is average (14.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.4% away from median
(+) | mids are linear (5.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2% away from median
(+) | highs are linear (4.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (9.3% difference to median)
Compared to same class
» 2% of all tested devices in this class were better, 2% similar, 97% worse
» The best had a delta of 9%, average was 19%, worst was 41%
Compared to all devices tested
» 1% of all tested devices were better, 0% similar, 98% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Power Consumption
Off / Standbydarklight 0.31 / 0.47 Watt
Idledarkmidlight 5.7 / 6.9 / 7.1 Watt
Load midlight 28.3 / 30.2 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Dell Latitude 5280
7200U, HD Graphics 620, Toshiba MQ01ACF050, TN LED, 1366x768, 12.5
Dell Latitude 5289
7300U, HD Graphics 620, SanDisk X400 256GB, SATA (SD8SB8U-256G), IPS LED, 1920x1080, 12.5
Lenovo ThinkPad X270-20HMS00T00
7200U, HD Graphics 620, Toshiba NVMe THNSF5512GPUK, IPS LED, 1920x1080, 12.5
HP EliteBook 725 G4
PRO A12-9800B, Radeon R7 (Bristol Ridge), Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 12.5
Dell Latitude 12 E5270
6300U, HD Graphics 520, Seagate ST500LM021-1KJ15, TN, 1366x768, 12.5
Power Consumption
12%
-1%
0%
2%
Idle Minimum *
5.7
2.7
53%
3.5
39%
4.5
21%
3.9
32%
Idle Average *
6.9
5.1
26%
5.8
16%
6.3
9%
6
13%
Idle Maximum *
7.1
7.6
-7%
7.6
-7%
8.3
-17%
6.6
7%
Load Average *
28.3
33
-17%
33.2
-17%
27.6
2%
28.9
-2%
Load Maximum *
30.2
29
4%
40.4
-34%
34.5
-14%
41.7
-38%

* ... smaller is better

Battery Runtime
Idle (without WLAN, min brightness)
18h 32min
WiFi Surfing v1.3
7h 50min
Load (maximum brightness)
2h 18min
Dell Latitude 5280
7200U, HD Graphics 620, 51 Wh
Dell Latitude 5289
7300U, HD Graphics 620, 60 Wh
Lenovo ThinkPad X270-20HMS00T00
7200U, HD Graphics 620, 46 Wh
HP EliteBook 725 G4
PRO A12-9800B, Radeon R7 (Bristol Ridge), 49 Wh
Dell Latitude 12 E5270
6300U, HD Graphics 520, 47 Wh
Battery Runtime
35%
-21%
-22%
-18%
Reader / Idle
1112
1728
55%
1023
-8%
700
-37%
772
-31%
WiFi v1.3
470
708
51%
324
-31%
380
-19%
398
-15%
Load
138
136
-1%
104
-25%
123
-11%
128
-7%

Pros

+ 支持多种不同容量电池;电池续航长
+ 支持VGA,SIM卡槽,USB-C,智能卡(可选)
+ 无降频问题,出色的Turbo Boost加速性能
+ 使用电池也可以完全发挥系统性能
+ 坚固的机身;MIL STD 810G标准
+ 相比E5270更轻更小巧
+ 平稳的风扇噪音,无脉冲
+ 相对安静的键盘
+ 易于维护
+ 可选的WiGig支持

Cons

- 让人遗憾的768p TN屏幕;对比度和色域覆盖均较差
- 相比5480/5580安全功能较弱
- 键盘布局拥挤;反馈绵软
- 仅支持一个内部存储插槽
- 不支持Thunderbolt 3,E-Port和NFC
- 不支持HQ系列处理器
- 系统风扇一直开启
- 鼠标按键反馈弱
- 无指点杆
In review: Dell Latitude 5280
In review: Dell Latitude 5280

许多商务笔记本电脑的主要卖点都包括了可以方便地连接扩展坞或外置电池。而最新的Latitude 5280/5480/5580系列则放弃了E-Port扩展坞接口,因为Thunderbolt 3正在逐渐成为扩展功能性的核心技术。遗憾的是Latitude 5280对这两者都没有提供支持,因此相比5480或5580灵活度较低,尽管它的尺寸较小也更加便携。另外,它的散热风扇会一直保持开启,我们认为这对于一台采用U系列超低电压处理器的设备来说并没有必要。

如果我们所提到的缺点并不算严重,5280在其他方面的表现可以说是十分出色。它的USB-C接口可以用于连接DisplayPort外置显示器,而全新设计的机身也在不影响坚固性的前提下相比E5270轻了很多。它的电池续航表现在使用中等容量电池时已经十分出色,保持提供VGA和HDMI接口可能会在大学或会议中提供不小的便利。特别是它的处理器性能十分出色,可以在高负载下保持Turbo Boost频率。

我们建议用户放弃768p屏幕机型,升级到更明亮1080p屏幕搭配固态硬盘的机型。在分辨率和亮度上的提高可以让笔记本电脑的使用更舒适,如果不时常连接外置显示器的话十分值得考虑。

相对绵软的键盘可能需要一些时间适应,而对于手较大的用户可能需要考虑尺寸更大的笔记本电脑。5280十分适合长时间出门在外使用笔记本电脑,而非主要在家中或办公室中使用的用户。

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。 

Dell Latitude 5280 - 05/27/2017 v6
Allen Ngo

Chassis
88 /  98 → 90%
Keyboard
81%
Pointing Device
89%
Connectivity
54 / 80 → 67%
Weight
71 / 78 → 83%
Battery
90%
Display
75%
Games Performance
54 / 68 → 79%
Application Performance
78 / 87 → 89%
Temperature
89 / 91 → 98%
Noise
88%
Audio
55 / 91 → 60%
Camera
44 / 85 → 52%
Average
73%
83%
Subnotebook - Weighted Average

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> Notebookcheck中文版(NBC中国) > 评测 > 戴尔 Latitude 5280 (7200U, HD) 笔记本电脑简短评测
Allen Ngo, 2017-06- 2 (Update: 2017-06- 2)