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惠普 EliteBook 755 G4 (AMD PRO A12-9800B) 笔记本电脑简短评测

表现适当？ 惠普EliteBook 系列电脑代表高需求客户的商务所需。您将在EliteBook 755 G4的评测中了解到，这一努力是否成功，它的表现是否可以胜任。
AMD Bristol Ridge / Stoney Ridge Business Laptop / Notebook Windows
HP EliteBook 755 G4 (EliteBook 700 Series)
Processor
AMD PRO A12-9800B 4 x 2.7 - 3.6 GHz, Bristol Ridge
Graphics adapter
AMD Radeon R7 (Bristol Ridge), Core: 758 MHz, RAM: 933 MHz, 21.19.153.1536
Memory
8 GB 
, DDR4-2400
Display
15.60 inch 16:9, 1920 x 1080 pixel 141 PPI, Chi Mei, CMN15C3, TN LED, glossy: no
Mainboard
K15.6 IMC
Storage
Samsung PM961 MZVLW256HEHP, 256 GB 
, M.2 SSD, 200 GB free
Soundcard
AMD Kabini - High Definition Audio Controller
Connections
2 USB 3.0 / 3.1 Gen1, 1 USB 3.1 Gen2, 1 Thunderbolt, 1 VGA, 1 DisplayPort, 1 Kensington Lock, 1 Docking Station Port, Audio Connections: stereo, Card Reader: SD, SDHC, SDXC, 1 SmartCard, 1 Fingerprint Reader
Networking
Broadcom BCM5762 NetXtreme PCI-E Gigabit Ethernet Controller (10/100/1000MBit/s), Intel Dual Band Wireless-AC 7265 (a/b/g/h/n = Wi-Fi 4/ac = Wi-Fi 5/), Bluetooth 4.2, LTE
Size
height x width x depth (in mm): 19.4 x 383.6 x 257.7
Battery
51 Wh, 4420 mAh Lithium-Ion
Operating System
Microsoft Windows 10 Pro 64 Bit
Camera
Webcam: 720p HD
Additional features
Speakers: 立体声扬声器, Keyboard: chiclet, Keyboard Light: yes, power supply, 36 Months Warranty
Weight
1.834 kg, Power Supply: 288 g
Price
1460 EUR
Links
HP homepage
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

HP EliteBook 755 G4
HP EliteBook 755 G4
HP EliteBook 755 G4
HP EliteBook 755 G4
HP EliteBook 755 G4
HP EliteBook 755 G4
HP EliteBook 755 G4
HP EliteBook 755 G4
HP EliteBook 755 G4
HP EliteBook 755 G4
HP EliteBook 755 G4
HP EliteBook 755 G4
HP EliteBook 755 G4
HP EliteBook 755 G4
❌
378 mm 257 mm 27.4 mm 2.3 kg383.6 mm 257.7 mm 20.8 mm 1.9 kg383.6 mm 257.7 mm 19.4 mm 1.8 kg378 mm 256 mm 19.2 mm 1.7 kg365.8 mm 252.8 mm 20.2 mm 2 kg297 mm 210 mm 1 mm 5.7 g
Left: Kensington Lock, fan vents, VGA, USB 3.0 (charging connector), smartcard reader
Left: Kensington Lock, fan vents, VGA, USB 3.0 (charging connector), smartcard reader
Right: USB Type-C, DisplayPort, SD-card reader, 3.5-mm audio, USB 3.0, RJ-45, docking port, Micro-SIM, power
Right: USB Type-C, DisplayPort, SD-card reader, 3.5-mm audio, USB 3.0, RJ-45, docking port, Micro-SIM, power
Front: status LEDs
Front: status LEDs
Back: no connections
Back: no connections
SD Card Reader
average JPG Copy Test (av. of 3 runs)
Fujitsu LifeBook U757
 
74 MB/s +35%
Lenovo ThinkPad T570-20H90002GE
 
73.6 MB/s +34%
HP EliteBook 850 G4-Z2W86ET
 
73.2 MB/s +33%
HP ProBook 650 G2 V1A44ET
 
57.3 MB/s +4%
HP EliteBook 755 G4
 
55 MB/s
maximum AS SSD Seq Read Test (1GB)
Lenovo ThinkPad T570-20H90002GE
 
89.5 MB/s +8%
HP EliteBook 850 G4-Z2W86ET
 
85.4 MB/s +3%
Fujitsu LifeBook U757
 
82.6 MB/s 0%
HP EliteBook 755 G4
 
82.6 MB/s
Networking
iperf3 transmit AX12
HP EliteBook 755 G4
Intel Dual Band Wireless-AC 7265
648 MBit/s
Lenovo ThinkPad T570-20H90002GE
Intel Dual Band Wireless-AC 8265
561 MBit/s -13%
HP EliteBook 850 G4-Z2W86ET
Intel Dual Band Wireless-AC 8265
523 MBit/s -19%
Fujitsu LifeBook U757
Intel Dual Band Wireless-AC 8265
522 MBit/s -19%
iperf3 receive AX12
Fujitsu LifeBook U757
Intel Dual Band Wireless-AC 8265
660 MBit/s +31%
Lenovo ThinkPad T570-20H90002GE
Intel Dual Band Wireless-AC 8265
639 MBit/s +27%
HP EliteBook 850 G4-Z2W86ET
Intel Dual Band Wireless-AC 8265
588 MBit/s +17%
HP EliteBook 755 G4
Intel Dual Band Wireless-AC 7265
504 MBit/s
309
cd/m²		320
cd/m²		293
cd/m²
274
cd/m²		333
cd/m²		289
cd/m²
302
cd/m²		334
cd/m²		299
cd/m²
Distribution of brightness
Chi Mei, CMN15C3 tested with X-Rite i1Pro 2
Maximum: 334 cd/m² (Nits) Average: 305.9 cd/m² Minimum: 16 cd/m²
Brightness Distribution: 82 %
Center on Battery: 333 cd/m²
Contrast: 374:1 (Black: 0.89 cd/m²)
ΔE Color 11.69 | 0.5-29.43 Ø4.92
ΔE Greyscale 13.7 | 0.5-98 Ø5.2
84% sRGB (Argyll 1.6.3 3D)
54% AdobeRGB 1998 (Argyll 1.6.3 3D)
57.7% AdobeRGB 1998 (Argyll 2.2.0 3D)
84.2% sRGB (Argyll 2.2.0 3D)
56.3% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.29
HP EliteBook 755 G4
Chi Mei, CMN15C3, , 1920x1080, 15.6"		Lenovo ThinkPad T570-20H90002GE
N156HCA-EAA, , 1920x1080, 15.6"		HP EliteBook 850 G4-Z2W86ET
AUO35ED, , 1920x1080, 15.6"		Fujitsu LifeBook U757
LP156WF6-SPP1, , 1920x1080, 15.6"		HP ProBook 650 G2 V1A44ET
Chi Mei, , 1920x1080, 15.6"
Display
-22%
1%
8%
-7%
Display P3 Coverage
56.3
44.08
-22%
56.8
1%
65.8
17%
52.1
-7%
sRGB Coverage
84.2
65.6
-22%
83.7
-1%
84.8
1%
78.3
-7%
AdobeRGB 1998 Coverage
57.7
45.66
-21%
58.7
2%
62
7%
53.7
-7%
Response Times
832%
-23%
-14%
-40%
Response Time Grey 50% / Grey 80% *
45 ?(27, 18)
41.6 ?(22, 19.6)
8%
47.2 ?(26.8, 20.4)
-5%
36 ?(17.2, 18.8)
20%
41 ?(23, 18)
9%
Response Time Black / White *
18 ?(14, 4)
20.8 ?(6.8, 14)
-16%
15.2 ?(10, 5.2)
16%
26.4 ?(15.6, 10.8)
-47%
27 ?(10, 17)
-50%
PWM Frequency
1000 ?(90)
26040 ?(40)
2504%
199.2 ?(50)
-80%
200 ?(90)
-80%
Screen
37%
6%
46%
7%
Brightness middle
333
262
-21%
338
2%
313
-6%
313
-6%
Brightness
306
245
-20%
341
11%
294
-4%
296
-3%
Brightness Distribution
82
89
9%
90
10%
84
2%
90
10%
Black Level *
0.89
0.24
73%
0.81
9%
0.27
70%
0.59
34%
Contrast
374
1092
192%
417
11%
1159
210%
531
42%
Colorchecker dE 2000 *
11.69
4.5
62%
10.9
7%
4.5
62%
11.89
-2%
Colorchecker dE 2000 max. *
20.57
10.5
49%
18.7
9%
10.5
49%
20.81
-1%
Greyscale dE 2000 *
13.7
3.5
74%
13.3
3%
4
71%
12.95
5%
Gamma
2.29 96%
2.32 95%
2.11 104%
2.24 98%
2.4 92%
CCT
15194 43%
6524 100%
16030 41%
6387 102%
15063 43%
Color Space (Percent of AdobeRGB 1998)
54
42.04
-22%
53.8
0%
55.3
2%
50
-7%
Color Space (Percent of sRGB)
84
65.4
-22%
83.4
-1%
84.74
1%
78
-7%
Total Average (Program / Settings)
282% / 175%
-5% / -0%
13% / 30%
-13% / -5%

* ... smaller is better

Display Response Times

ℹ
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
18 ms ... rise ↗ and fall ↘ combined↗ 14 ms rise
↘ 4 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 0.1 (minimum) to 240 (maximum) ms. » 36 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (21 ms).
   ↔    Response Time 50% Grey to 80% Grey
45 ms ... rise ↗ and fall ↘ combined↗ 27 ms rise
↘ 18 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.165 (minimum) to 636 (maximum) ms. » 74 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (32.9 ms).

Screen Flickering / PWM (Pulse-Width Modulation)

ℹ
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 detected 1000 Hz ≤ 90 % brightness setting

The display backlight flickers at 1000 Hz (worst case, e.g., utilizing PWM) Flickering detected at a brightness setting of 90 % and below. There should be no flickering or PWM above this brightness setting.

The frequency of 1000 Hz is quite high, so most users sensitive to PWM should not notice any flickering.

In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8743 (minimum: 5 - maximum: 343500) Hz was measured.

CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
GPU-Z
GPU-Z
GPU-Z
GPU-Z
HWiNFO
HWiNFO
DPC latencies
DPC latencies
 
0102030405060708090100110120130140150160170180190200210220230Tooltip
Cinebench R15 CPU Multi 64 Bit
Cinebench R15 | Cinebench R11.5 | JetStream 1.1 | Octane V2 | Mozilla Kraken 1.1
Cinebench R15
CPU Single 64Bit
Fujitsu LifeBook U757
Intel Core i5-7200U
128 Points +71%
Lenovo ThinkPad T570-20H90002GE
Intel Core i5-7200U
128 Points +71%
HP EliteBook 850 G4-Z2W86ET
Intel Core i5-7200U
126 Points +68%
HP ProBook 650 G2 V1A44ET
Intel Core i5-6200U
116 Points +55%
HP EliteBook 755 G4
AMD PRO A12-9800B
75 Points
CPU Multi 64Bit
Fujitsu LifeBook U757
Intel Core i5-7200U
331 Points +49%
HP EliteBook 850 G4-Z2W86ET
Intel Core i5-7200U
330 Points +49%
Lenovo ThinkPad T570-20H90002GE
Intel Core i5-7200U
330 Points +49%
HP ProBook 650 G2 V1A44ET
Intel Core i5-6200U
291 Points +31%
HP EliteBook 755 G4
AMD PRO A12-9800B
222 Points
Cinebench R11.5
CPU Single 64Bit
HP EliteBook 755 G4
AMD PRO A12-9800B
0.9 Points
CPU Multi 64Bit
HP EliteBook 755 G4
AMD PRO A12-9800B
2.7 Points
JetStream 1.1 - Total Score
HP EliteBook 850 G4-Z2W86ET
Intel Core i5-7200U
201.8 Points +58%
Lenovo ThinkPad T570-20H90002GE
Intel Core i5-7200U
197.5 Points +55%
Fujitsu LifeBook U757
Intel Core i5-7200U
183 Points +43%
HP EliteBook 755 G4
AMD PRO A12-9800B
127.7 Points
HP ProBook 650 G2 V1A44ET
Intel Core i5-6200U
112.6 Points -12%
Octane V2 - Total Score
Lenovo ThinkPad T570-20H90002GE
Intel Core i5-7200U
30924 Points +68%
HP EliteBook 850 G4-Z2W86ET
Intel Core i5-7200U
29647 Points +61%
HP EliteBook 755 G4
AMD PRO A12-9800B
18435 Points
Mozilla Kraken 1.1 - Total
HP EliteBook 755 G4
AMD PRO A12-9800B
2152 ms *
HP EliteBook 850 G4-Z2W86ET
Intel Core i5-7200U
1231 ms * +43%
Lenovo ThinkPad T570-20H90002GE
Intel Core i5-7200U
1168 ms * +46%

* ... smaller is better

Cinebench R10 Shading 32Bit
4680
Cinebench R10 Rendering Multiple CPUs 32Bit
7257
Cinebench R10 Rendering Single 32Bit
2564
Cinebench R10 Shading 64Bit
4562 Points
Cinebench R10 Rendering Multiple CPUs 64Bit
10237 Points
Cinebench R10 Rendering Single CPUs 64Bit
3499 Points
Cinebench R11.5 CPU Multi 64Bit
2.7 Points
Cinebench R11.5 OpenGL 64Bit
18.07 fps
Cinebench R11.5 CPU Single 64Bit
0.9 Points
Cinebench R15 CPU Multi 64Bit
222 Points
Cinebench R15 CPU Single 64Bit
75 Points
Cinebench R15 Ref. Match 64Bit
98 %
Cinebench R15 OpenGL 64Bit
22.88 fps
Help
PCMark 8 | PCMark 7
PCMark 8
Home Score Accelerated v2
HP EliteBook 850 G4-Z2W86ET
Intel Core i5-7200U, 2500 MHz, Samsung PM951 NVMe MZVLV256
3542 Points +124%
Lenovo ThinkPad T570-20H90002GE
Intel Core i5-7200U, 2500 MHz, Samsung PM961 MZVLW256HEHP
3523 Points +123%
Fujitsu LifeBook U757
Intel Core i5-7200U, 2500 MHz, Samsung CM871a MZNTY256HDHP
3320 Points +110%
HP ProBook 650 G2 V1A44ET
Intel Core i5-6200U, 2300 MHz, Sandisk X300 SD7SN6S-256G-1006
3234 Points +105%
HP EliteBook 755 G4
AMD PRO A12-9800B, 2700 MHz, Samsung PM961 MZVLW256HEHP
1579 Points
Work Score Accelerated v2
Lenovo ThinkPad T570-20H90002GE
Intel Core i5-7200U, 2500 MHz, Samsung PM961 MZVLW256HEHP
4606 Points +22%
HP EliteBook 850 G4-Z2W86ET
Intel Core i5-7200U, 2500 MHz, Samsung PM951 NVMe MZVLV256
4330 Points +15%
HP EliteBook 755 G4
AMD PRO A12-9800B, 2700 MHz, Samsung PM961 MZVLW256HEHP
3765 Points
Creative Score Accelerated v2
Lenovo ThinkPad T570-20H90002GE
Intel Core i5-7200U, 2500 MHz, Samsung PM961 MZVLW256HEHP
4380 Points +33%
HP EliteBook 755 G4
AMD PRO A12-9800B, 2700 MHz, Samsung PM961 MZVLW256HEHP
3292 Points
PCMark 7
Productivity
HP EliteBook 755 G4
AMD PRO A12-9800B, 2700 MHz, Samsung PM961 MZVLW256HEHP
3547 Points
Score
HP EliteBook 755 G4
AMD PRO A12-9800B, 2700 MHz, Samsung PM961 MZVLW256HEHP
7184 Points
PCMark 7 Score
7184 points
PCMark 8 Home Score Accelerated v2
1579 points
PCMark 8 Creative Score Accelerated v2
3292 points
PCMark 8 Work Score Accelerated v2
3765 points
PCMark 10 Score
2332 points
Help
HP EliteBook 755 G4
Samsung PM961 MZVLW256HEHP		Lenovo ThinkPad T570-20H90002GE
Samsung PM961 MZVLW256HEHP		HP EliteBook 850 G4-Z2W86ET
Samsung PM951 NVMe MZVLV256		Fujitsu LifeBook U757
Samsung CM871a MZNTY256HDHP		HP ProBook 650 G2 V1A44ET
Sandisk X300 SD7SN6S-256G-1006
CrystalDiskMark 3.0
132%
78%
36%
14%
Read Seq
800
1318
65%
1245
56%
509
-36%
475
-41%
Write Seq
774
1166
51%
298.6
-61%
488.4
-37%
435
-44%
Read 512
583
933
60%
673
15%
414.3
-29%
280.4
-52%
Write 512
580
860
48%
298.8
-48%
321.7
-45%
265.5
-54%
Read 4k
31.42
56.6
80%
41.79
33%
36.43
16%
32.71
4%
Write 4k
49.86
130.6
162%
138.4
178%
88.4
77%
98.7
98%
Read 4k QD32
141.2
510
261%
495
251%
402.8
185%
347.2
146%
Write 4k QD32
99.1
426.4
330%
297.5
200%
256.7
159%
154.1
55%
CrystalDiskMark 3.0
AS SSD
hddimg
Samsung PM961 MZVLW256HEHP
Sequential Read: 800 MB/s
Sequential Write: 774 MB/s
512K Read: 583 MB/s
512K Write: 580 MB/s
4K Read: 31.42 MB/s
4K Write: 49.86 MB/s
4K QD32 Read: 141.2 MB/s
4K QD32 Write: 99.1 MB/s
3DMark | 3DMark 11
3DMark
1280x720 Cloud Gate Standard Graphics
Lenovo ThinkPad T570-20H90002GE
Intel HD Graphics 620, Intel Core i5-7200U
7030 Points +33%
HP EliteBook 850 G4-Z2W86ET
Intel HD Graphics 620, Intel Core i5-7200U
6840 Points +30%
HP EliteBook 755 G4
AMD Radeon R7 (Bristol Ridge), AMD PRO A12-9800B
5278 Points
1920x1080 Fire Strike Graphics
HP EliteBook 755 G4
AMD Radeon R7 (Bristol Ridge), AMD PRO A12-9800B
962 Points
Lenovo ThinkPad T570-20H90002GE
Intel HD Graphics 620, Intel Core i5-7200U
822 Points -15%
HP EliteBook 850 G4-Z2W86ET
Intel HD Graphics 620, Intel Core i5-7200U
792 Points -18%
3DMark 11 - 1280x720 Performance GPU
HP EliteBook 755 G4
AMD Radeon R7 (Bristol Ridge), AMD PRO A12-9800B
1820 Points
Lenovo ThinkPad T570-20H90002GE
Intel HD Graphics 620, Intel Core i5-7200U
1431 Points -21%
HP EliteBook 850 G4-Z2W86ET
Intel HD Graphics 620, Intel Core i5-7200U
1417 Points -22%
Fujitsu LifeBook U757
Intel HD Graphics 620, Intel Core i5-7200U
1309 Points -28%
HP ProBook 650 G2 V1A44ET
Intel HD Graphics 520, Intel Core i5-6200U
1220 Points -33%
3DMark 11 Performance
1737 points
3DMark Ice Storm Standard Score
37561 points
3DMark Cloud Gate Standard Score
3897 points
3DMark Fire Strike Score
833 points
3DMark Fire Strike Extreme Score
417 points
3DMark Time Spy Score
358 points
Help
lowmed.highultra
BioShock Infinite (2013) 46.2 27.9 22.5 7.8
Battlefield 4 (2013) 32.5 22.8 15.2 5.6
The Witcher 3 (2015) 11.9 7.6
Rise of the Tomb Raider (2016) 20.6 12.4 6.2

Noise Level

Idle
29.9 / 29.9 / 29.9 dB(A)
Load
30.9 / 32.8 dB(A)
  red to green bar
 
 
30 dB
silent
40 dB(A)
audible
50 dB(A)
loud
  
min: dark, med: mid, max: light   Audix TM1, Arta (15 cm distance)   environment noise: 29.9 dB(A)
HP EliteBook 755 G4
PRO A12-9800B, Radeon R7 (Bristol Ridge)		Lenovo ThinkPad T570-20H90002GE
i5-7200U, HD Graphics 620		HP EliteBook 850 G4-Z2W86ET
i5-7200U, HD Graphics 620		Fujitsu LifeBook U757
i5-7200U, HD Graphics 620		HP ProBook 650 G2 V1A44ET
6200U, HD Graphics 520
Noise
-5%
2%
2%
-6%
off / environment *
29.9
29.3
2%
29
3%
28.2
6%
30.5
-2%
Idle Minimum *
29.9
29.3
2%
29
3%
28.2
6%
30.5
-2%
Idle Average *
29.9
29.3
2%
29
3%
28.2
6%
31.6
-6%
Idle Maximum *
29.9
31.2
-4%
29
3%
28.2
6%
31.9
-7%
Load Average *
30.9
35.1
-14%
31
-0%
33.3
-8%
34.7
-12%
Load Maximum *
32.8
38.7
-18%
33.4
-2%
34
-4%
34.5
-5%

* ... smaller is better

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2034.334.634.833.634.32531.535.538.338.231.53137.545.642.343.437.54032.238.238.53432.25040.540.344.23940.56328.431.335.731.628.4802627.726272610024.825.725.326.124.812525.725.626.128.425.7160232324.124.32320022.322.52222.422.325021.621.621.321.521.631521.821.221.121.321.84002120.319.919.52150020.419.418.818.720.463019.918.81818.319.980020.518.817.517.620.5100020.418.717.617.120.4125020.919.117.317.220.9160021.519.117.117.221.5200021.818.916.716.921.825002319.41716.923315021.618.317.417.321.640002017.817.317.320500018.717.717.417.518.763001817.617.617.51880001817.717.817.5181000018.117.81817.818.11250018.217.918.217.818.21600018.818.118.518.318.8SPL32.830.93029.932.8N1.81.51.41.31.8median 20.9median 18.9median 18median 17.8median 20.9Delta1.31.91.71.81.337.533.234.336.931.434.137.832.933.236.331.330.931.328.328.82927.626.728.127.72726.523.425.126.825.327.124.42323.623.523.92424.826.224.522.622.423.221.62122.62019.721.12018.722.12019.623.920.319.824.52016.92319.714.922.519.614.321.519.714.120.317.513.819.717.314.119.215.514.11815.214.115.71514.114.915.214.415.114.614.214.814.614.114.4312933.11.51.21.8median 20median 16.9median 22.13.63.93hearing rangehide median Fan NoiseHP EliteBook 755 G4HP EliteBook 850 G4-Z2W86ET
Max. Load
 33.5 °C34 °C35 °C 
 32 °C35.7 °C32 °C 
 27.2 °C27.1 °C28.1 °C 
Maximum: 35.7 °C
Average: 31.6 °C
31.8 °C31.2 °C31.4 °C
31.3 °C29.9 °C31.4 °C
26.6 °C26.1 °C26.3 °C
Maximum: 31.8 °C
Average: 29.6 °C
Power Supply (max.)  45 °C | Room Temperature 23.4 °C | FIRT 550-Pocket
(+) The average temperature for the upper side under maximal load is 31.6 °C / 89 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 35.7 °C / 96 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 31.8 °C / 89 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 28.1 °C / 83 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 28.1 °C / 82.6 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 27.7 °C / 81.9 F (-0.4 °C / -0.7 F).
HP EliteBook 755 G4
PRO A12-9800B, Radeon R7 (Bristol Ridge)		Lenovo ThinkPad T570-20H90002GE
i5-7200U, HD Graphics 620		HP EliteBook 850 G4-Z2W86ET
i5-7200U, HD Graphics 620		Fujitsu LifeBook U757
i5-7200U, HD Graphics 620		HP ProBook 650 G2 V1A44ET
6200U, HD Graphics 520
Heat
-6%
5%
-4%
-9%
Maximum Upper Side *
35.7
39.5
-11%
37
-4%
42
-18%
39.6
-11%
Maximum Bottom *
31.8
48.3
-52%
41.1
-29%
38.8
-22%
41.8
-31%
Idle Upper Side *
30.9
24.5
21%
23.2
25%
29.2
6%
31.6
-2%
Idle Bottom *
31.8
25.3
20%
23.2
27%
26.3
17%
29.7
7%

* ... smaller is better

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2047.733.647.72543.938.243.9314543.4454037.43437.45040.33940.36338.231.638.28028.22728.210029.726.129.712540.928.440.91604824.34820047.522.447.525039.721.539.731546.221.346.240061.619.561.650063.718.763.763064.318.364.380063.517.663.5100062.517.162.5125066.217.266.216005817.25820006316.963250062.716.962.7315065.617.365.6400067.917.367.950006717.567630067.117.567.180006417.5641000062.717.862.71250064.617.864.6160006018.360SPL76.829.976.8N39.91.339.9median 62.7median 17.8median 62.7Delta7.61.87.63432.235.93532.636.334.535.927.931.726.9312732.625.832.525.537.123.941.324.448.625.852.521.860.420.16219.364.118.864.119.560.92061.817.861.215.45814.959.214.563.614.161.615.662.714.76417.166.616.964.115.755.616.352.518.649.429.574.61.336.1median 18.6median 60.93.46.6hearing rangehide median Pink NoiseHP EliteBook 755 G4HP EliteBook 850 G4-Z2W86ET
HP EliteBook 755 G4 audio analysis

(-) | not very loud speakers (68 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 20.7% lower than median
(±) | linearity of bass is average (12.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 1.6% away from median
(±) | linearity of mids is average (10.2% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.6% away from median
(+) | highs are linear (3.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (17.5% difference to median)
Compared to same class
» 23% of all tested devices in this class were better, 6% similar, 70% worse
» The best had a delta of 7%, average was 22%, worst was 53%
Compared to all devices tested
» 30% of all tested devices were better, 8% similar, 62% worse
» The best had a delta of 4%, average was 25%, worst was 134%

HP EliteBook 850 G4-Z2W86ET audio analysis

(±) | speaker loudness is average but good (74.6 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 15.5% lower than median
(±) | linearity of bass is average (11% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 1.7% away from median
(+) | mids are linear (3.8% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.2% away from median
(±) | linearity of highs is average (7.6% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (17.7% difference to median)
Compared to same class
» 24% of all tested devices in this class were better, 6% similar, 70% worse
» The best had a delta of 7%, average was 22%, worst was 53%
Compared to all devices tested
» 32% of all tested devices were better, 8% similar, 60% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Power Consumption
Off / Standbydarklight 0.58 / 0.65 Watt
Idledarkmidlight 7 / 10.9 / 11 Watt
Load midlight 30.5 / 36.1 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
HP EliteBook 755 G4
PRO A12-9800B, Radeon R7 (Bristol Ridge), Samsung PM961 MZVLW256HEHP, TN LED, 1920x1080, 15.6"		Lenovo ThinkPad T570-20H90002GE
i5-7200U, HD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 15.6"		HP EliteBook 850 G4-Z2W86ET
i5-7200U, HD Graphics 620, Samsung PM951 NVMe MZVLV256, TN LED, 1920x1080, 15.6"		Fujitsu LifeBook U757
i5-7200U, HD Graphics 620, Samsung CM871a MZNTY256HDHP, IPS LED, 1920x1080, 15.6"		HP ProBook 650 G2 V1A44ET
6200U, HD Graphics 520, Sandisk X300 SD7SN6S-256G-1006, TN LED, 1920x1080, 15.6"
Power Consumption
15%
25%
22%
28%
Idle Minimum *
7
3.6
49%
3.58
49%
3.96
43%
3.4
51%
Idle Average *
10.9
7.7
29%
5.97
45%
7.74
29%
7.5
31%
Idle Maximum *
11
8.2
25%
6.81
38%
8.64
21%
7.6
31%
Load Average *
30.5
30.8
-1%
29.4
4%
28.8
6%
28.4
7%
Load Maximum *
36.1
46.1
-28%
39.7
-10%
32
11%
28.4
21%

* ... smaller is better

Battery Runtime
Idle (without WLAN, min brightness)
12h 16min
WiFi Websurfing (Edge 38.14393.1066.0)
4h 19min
Big Buck Bunny H.264 1080p
4h 32min
Load (maximum brightness)
1h 53min
HP EliteBook 755 G4
PRO A12-9800B, Radeon R7 (Bristol Ridge), 51 Wh		Lenovo ThinkPad T570-20H90002GE
i5-7200U, HD Graphics 620, 56 Wh		HP EliteBook 850 G4-Z2W86ET
i5-7200U, HD Graphics 620, 51 Wh		Fujitsu LifeBook U757
i5-7200U, HD Graphics 620, 50 Wh		HP ProBook 650 G2 V1A44ET
6200U, HD Graphics 520, 48 Wh
Battery Runtime
82%
82%
70%
64%
Reader / Idle
736
1167
59%
1081
47%
H.264
272
587
116%
637
134%
WiFi v1.3
259
454
75%
530
105%
440
70%
424
64%
Load
113
201
78%
160
42%

Pros

+ 坚固机身
+ 优雅设计
+ 非常好的做工
+ 很安静，甚至在负载下
+ 快速固态硬盘
+ 拥有LTE模块
+ 良好的连接性
+ 高于一般水准的音质
+ 拓展坞

Cons

- TN面板（视角稳定）
- 闲置时功耗高
- 中央处理器性能略逊于预期
- 电池续航太短
- 无维护舱口
HP EliteBook 755 G4, provided by HP Germany
HP EliteBook 755 G4, provided by HP Germany

HP EliteBook 755 G4是一台15英寸格式的商务笔记本电脑。AMD处理器对于预想的用途来说是已经足够，尽管它也有一些缺点。此外，提供给我们的笔记本电脑配备了8 GB的DDR4运行内存和一个256 GB M.2-2280格式的固态硬盘，目前价位1460欧元（约1650美元）。我们非常喜欢该机没有任何缺陷的干净做工。我们也喜欢看起来非常优雅的外观。由于选用的材料很好，外壳非常稳定，因此非常适合日常使用。

惠普 EliteBook 755 G4是一款良好的商务设备。作为入门级设备，带来许多安全功能。使用惠普 EliteBook 755 G4时，AMD处理器的性能足以满足工作所需，且具有良好的连接性。

我们最不满的地方是它的显示屏幕，让整个设备显得不完美。 它的质量根本不符合EliteBook系列的水准。制造商应该检查这个质量水平是否符合真正的目标。另一个问题是由于处理器有点耗电，导致电池续航短。

缺乏维护舱口让我们有点恼火，底部外壳拆卸需要一点时间。如果拥有维护舱口，我们觉得会更方便。电脑的音质，键盘和快速的固态硬盘都让人喜欢。同时，这些对系统来说也是最重要的地方。

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。

HP EliteBook 755 G4 - 07/12/2017 v6 (old)
Sebastian Bade

Chassis
90 / 98 → 92%
Keyboard
92%
Pointing Device
90%
Connectivity
59 / 80 → 73%
Weight
65 / 20-67 → 96%
Battery
77%
Display
77%
Games Performance
50 / 68 → 73%
Application Performance
68 / 92 → 74%
Temperature
94%
Noise
95%
Audio
69%
Camera
45 / 85 → 53%
Average
75%
85%
Office - Weighted Average

Price comparison

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> Notebookcheck中文版（NBC中国） > 评测 > 惠普 EliteBook 755 G4 (AMD PRO A12-9800B) 笔记本电脑简短评测
Sebastian Bade, 2017-07-25 (Update: 2017-07-28)