Notebookcheck

惠普 EliteBook 820 G4 (7500U, 全高清)笔记本简短评测

Sascha Mölck (translated by Kangfei Zheng), 03/04/2017
Business Kaby Lake Notebook Windows

耐力十足。 全新12.5英寸EliteBook配备了Kaby Lake处理器,确保了它更好的续航能力。我们同样喜欢其他功能:IPS显示屏,NVMe固态硬盘,16 GB内存和LTE调制解调器。然而,该设备也有一些缺点。

HP EliteBook 820 G4 Z2V72ET (EliteBook 820 Series)
Graphics adapter
Intel HD Graphics 620, Core: 300-1000 MHz, 单通道, 21.20.16.4541
Memory
16384 MB 
, DDR4-2400, 单通道, 两内存槽(一个已占用)
Display
12.5 inch 16:9, 1920x1080 pixel 176 PPI, Chi Mei, IPS, glossy: no
Mainboard
Intel Kaby Lake-U Premium PCH
Storage
Samsung PM951 NVMe MZVLV512, 512 GB 
, 430 GB free
Soundcard
Conexant
Connections
3 USB 3.0 / 3.1 Gen1, 1 VGA, 1 DisplayPort, 1 Kensington Lock, 1 Docking Station Port, Audio Connections: 耳麦合一, Card Reader: SD, 1 SmartCard, 1 Fingerprint Reader, Brightness Sensor, TPM 2.0
Networking
Intel Ethernet Connection I219-V (10/100/1000MBit), Intel Dual Band Wireless-AC 8265 (a/b/g/n/ac), Bluetooth 4.2, HP lt4120 骁龙 X$ LTE, LTE, GPS
Size
height x width x depth (in mm): 18.9 x 310 x 218.9
Battery
49 Wh, 4250 mAh Lithium-Ion, 11.55 V
Operating System
Microsoft Windows 10 Pro 64 Bit
Camera
Webcam: 高清
Additional features
Speakers: 立体声, Keyboard: 巧克力键盘, Keyboard Light: yes, Microsoft Office 365 (试用版), 36 Months Warranty
Weight
1.26 kg, Power Supply: 296 g
Price
2099 Euro

 

Size Comparison

left: security lock slot, VGA out, USB 3.0 (Type-A), Smartcard reader
left: security lock slot, VGA out, USB 3.0 (Type-A), Smartcard reader
right: USB 3.1 Gen 1 (Type-C), Displayport, audio combo, USB 3.0 (Type-A), memory card reader (SD), Gigabit Ethernet, docking port, SIM card slot, power-in
right: USB 3.1 Gen 1 (Type-C), Displayport, audio combo, USB 3.0 (Type-A), memory card reader (SD), Gigabit Ethernet, docking port, SIM card slot, power-in
Networking
iperf3 Client (receive) TCP 1 m 4M x10
HP EliteBook 820 G4 Z2V72ET
Intel Dual Band Wireless-AC 8265 (jseb)
506 MBit/s ∼100%
iperf3 Client (transmit) TCP 1 m 4M x10
HP EliteBook 820 G4 Z2V72ET
Intel Dual Band Wireless-AC 8265 (jseb)
474 MBit/s ∼100%
iperf Server (receive) TCP 1 m
Apple MacBook 12 (Early 2016) 1.1 GHz
Broadcom 802.11ac
570 MBit/s ∼100%
iperf Client (transmit) TCP 1 m
Apple MacBook 12 (Early 2016) 1.1 GHz
Broadcom 802.11ac
397 MBit/s ∼100%
282
cd/m²
316
cd/m²
320
cd/m²
288
cd/m²
326
cd/m²
324
cd/m²
265
cd/m²
303
cd/m²
312
cd/m²
Distribution of brightness
X-Rite i1Pro 2
Maximum: 326 cd/m² Average: 304 cd/m² Minimum: 15.5 cd/m²
Brightness Distribution: 81 %
Center on Battery: 328 cd/m²
Contrast: 1124:1 (Black: 0.29 cd/m²)
ΔE Color 6.49 | - Ø
ΔE Greyscale 6.16 | - Ø
65% sRGB (Argyll) 42% AdobeRGB 1998 (Argyll)
Gamma: 2.32
HP EliteBook 820 G4 Z2V72ET
IPS, 1920x1080, 12.5
HP EliteBook 820 G3
TN LED, 1366x768, 12.5
HP EliteBook 725 G3-P4T48EA
TN LED, 1366x768, 12.5
Lenovo ThinkPad X260-20F6007RGE
IPS, 1920x1080, 12.5
Toshiba Portege Z30-C-138
IPS, 1920x1080, 13.3
Dell Latitude 12 E7270
IPS LED, 1920x1080, 12.5
Apple MacBook 12 (Early 2016) 1.1 GHz
IPS, 2304x1440, 12
Response Times
-39%
-18%
1%
-14%
-11%
-18%
Response Time Grey 50% / Grey 80% *
35 (16, 19)
58 (24.8, 33.2)
-66%
50 (27, 23)
-43%
32.8 (15.6, 17.2)
6%
42 (18, 24)
-20%
38.4 (17.2, 21.2)
-10%
41.2 (15.6, 25.6)
-18%
Response Time Black / White *
26 (7, 19)
29.2 (12, 17.2)
-12%
24 (20, 4)
8%
27.2 (12.4, 14.8)
-5%
28 (7, 21)
-8%
28.8 (10.8, 18)
-11%
30.4 (6.8, 23.6)
-17%
PWM Frequency
217 (40)
Screen
-38%
-29%
4%
12%
-17%
21%
Brightness
304
240
-21%
240
-21%
322
6%
280
-8%
334
10%
358
18%
Brightness Distribution
81
84
4%
83
2%
91
12%
87
7%
91
12%
88
9%
Black Level *
0.29
0.6
-107%
0.54
-86%
0.32
-10%
0.31
-7%
0.47
-62%
0.47
-62%
Contrast
1124
407
-64%
446
-60%
1053
-6%
968
-14%
751
-33%
823
-27%
Colorchecker DeltaE2000 *
6.49
9
-39%
8.04
-24%
5.71
12%
4.9
24%
7.79
-20%
1.6
75%
Greyscale DeltaE2000 *
6.16
9.48
-54%
9.52
-55%
5.15
16%
6.69
-9%
7.38
-20%
1
84%
Gamma
2.32 103%
2.44 98%
2.42 99%
2.38 101%
2.33 103%
2.43 99%
2.26 106%
CCT
7575 86%
11116 58%
11362 57%
6881 94%
6487 100%
6158 106%
6680 97%
Color Space (Percent of AdobeRGB 1998)
42
37.18
-11%
45.03
7%
42.38
1%
63
50%
37.72
-10%
61.6
47%
Color Space (Percent of sRGB)
65
58.63
-10%
71.12
9%
65.62
1%
98
51%
58.87
-9%
82.2
26%
Total Average (Program / Settings)
-39% / -38%
-24% / -26%
3% / 3%
-1% / 7%
-14% / -15%
2% / 14%

* ... smaller is better

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: 54 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8563 (minimum: 43 - maximum: 142900) Hz was measured.

CalMAN - Color Checker
CalMAN - Color Checker
CalMAN - Grayscales
CalMAN - Grayscales
CalMAN - Color Saturation
CalMAN - Color Saturation
CalMAN - Color Checker (calibrated)
CalMAN - Color Checker (calibrated)
CalMAN - Grayscales (calibrated)
CalMAN - Grayscales (calibrated)
CalMAN - Color Saturation (calibrated)
CalMAN - Color Saturation (calibrated)

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
26 ms ... rise ↗ and fall ↘ combined↗ 7 ms rise
↘ 19 ms fall
The screen shows relatively slow response rates in our tests and may be too slow for gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 42 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (26.6 ms).
       Response Time 50% Grey to 80% Grey
35 ms ... rise ↗ and fall ↘ combined↗ 16 ms rise
↘ 19 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. » 24 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (42.5 ms).
CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
GPU-Z
HWInfo
LatencyMon
The CPU is soldered.
The CPU is soldered.
Cinebench R10 Shading 32Bit
7819
Cinebench R10 Rendering Multiple CPUs 32Bit
11385
Cinebench R10 Rendering Single 32Bit
5601
Cinebench R11.5 OpenGL 64Bit
23.21 fps
Cinebench R11.5 CPU Multi 64Bit
3.66 Points
Cinebench R11.5 CPU Single 64Bit
1.65 Points
Cinebench R15 Ref. Match 64Bit
97.7 %
Cinebench R15 OpenGL 64Bit
23.86 fps
Cinebench R15 CPU Multi 64Bit
329 Points
Cinebench R15 CPU Single 64Bit
139 Points
Help
Cinebench R15
CPU Single 64Bit
HP EliteBook 820 G4 Z2V72ET
Intel Core i7-7500U
139 Points ∼70%
Lenovo ThinkPad X260-20F6007RGE
Intel Core i7-6500U
128 Points ∼64% -8%
Dell Latitude 12 E7270
Intel Core i5-6300U
124 Points ∼62% -11%
HP EliteBook 820 G3
Intel Core i5-6300U
123 Points ∼62% -12%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel Core m3-6Y30
91 Points ∼46% -35%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel Core m3-6Y30
90 Points ∼45% -35%
Toshiba Portege Z30-C-138
Intel Core i7-6500U
84 Points ∼42% -40%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
70 Points ∼35% -50%
CPU Multi 64Bit
HP EliteBook 820 G4 Z2V72ET
Intel Core i7-7500U
329 Points ∼15%
Lenovo ThinkPad X260-20F6007RGE
Intel Core i7-6500U
324 Points ∼15% -2%
HP EliteBook 820 G3
Intel Core i5-6300U
311 Points ∼14% -5%
Dell Latitude 12 E7270
Intel Core i5-6300U
311 Points ∼14% -5%
Toshiba Portege Z30-C-138
Intel Core i7-6500U
288 Points ∼13% -12%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel Core m3-6Y30
218 Points ∼10% -34%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
192 Points ∼9% -42%
Cinebench R11.5
CPU Single 64Bit
HP EliteBook 820 G4 Z2V72ET
Intel Core i7-7500U
1.65 Points ∼73%
Lenovo ThinkPad X260-20F6007RGE
Intel Core i7-6500U
1.47 Points ∼65% -11%
Dell Latitude 12 E7270
Intel Core i5-6300U
1.42 Points ∼63% -14%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel Core m3-6Y30
1 Points ∼44% -39%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel Core m3-6Y30
0.95 Points ∼42% -42%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
0.82 Points ∼36% -50%
CPU Multi 64Bit
HP EliteBook 820 G4 Z2V72ET
Intel Core i7-7500U
3.66 Points ∼2%
Lenovo ThinkPad X260-20F6007RGE
Intel Core i7-6500U
3.57 Points ∼1% -2%
Dell Latitude 12 E7270
Intel Core i5-6300U
3.47 Points ∼1% -5%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel Core m3-6Y30
2.35 Points ∼1% -36%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel Core m3-6Y30
2.29 Points ∼1% -37%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
2.29 Points ∼1% -37%
Geekbench 3
32 Bit Multi-Core Score
HP EliteBook 820 G4 Z2V72ET
Intel Core i7-7500U
7216 Points ∼23%
Lenovo ThinkPad X260-20F6007RGE
Intel Core i7-6500U
6395 Points ∼21% -11%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
2728 Points ∼9% -62%
32 Bit Single-Core Score
HP EliteBook 820 G4 Z2V72ET
Intel Core i7-7500U
3234 Points ∼69%
Lenovo ThinkPad X260-20F6007RGE
Intel Core i7-6500U
2956 Points ∼63% -9%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
950 Points ∼20% -71%
Geekbench 4.0
64 Bit Multi-Core Score
HP EliteBook 820 G4 Z2V72ET
Intel Core i7-7500U
7671 Points ∼28%
64 Bit Single-Core Score
HP EliteBook 820 G4 Z2V72ET
Intel Core i7-7500U
4046 Points ∼70%
JetStream 1.1 - 1.1 Total Score
HP EliteBook 820 G4 Z2V72ET
Intel Core i7-7500U
242.37 Points ∼0%
Toshiba Portege Z30-C-138
Intel Core i7-6500U
220 Points ∼0% -9%
Lenovo ThinkPad X260-20F6007RGE
Intel Core i7-6500U
217.28 Points ∼0% -10%
Dell Latitude 12 E7270
Intel Core i5-6300U
210.72 Points ∼0% -13%
HP EliteBook 820 G3
Intel Core i5-6300U
188 Points ∼0% -22%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel Core m3-6Y30
143 Points ∼0% -41%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel Core m3-6Y30
130.7 Points ∼0% -46%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
111.17 Points ∼0% -54%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
66.403 Points ∼0% -73%
PCMark 7 Score
5376 points
PCMark 8 Home Score Accelerated v2
3660 points
PCMark 8 Creative Score Accelerated v2
4631 points
PCMark 8 Work Score Accelerated v2
4824 points
Help
PCMark 8
Work Score Accelerated v2
HP EliteBook 820 G4 Z2V72ET
HD Graphics 620, 7500U, Samsung PM951 NVMe MZVLV512
4824 Points ∼74%
HP EliteBook 820 G3
HD Graphics 520, 6300U, Samsung SM951 MZVPV256HDGL m.2 PCI-e
4581 Points ∼70% -5%
Dell Latitude 12 E7270
HD Graphics 520, 6300U, Liteon L8H-256V2G
4395 Points ∼67% -9%
Lenovo ThinkPad X260-20F6007RGE
HD Graphics 520, 6500U, Liteonit LCH-512V2S
4341 Points ∼67% -10%
HP EliteBook 725 G3-P4T48EA
Radeon R6 (Carrizo), Pro A10-8700B, Hitachi Travelstar Z7K500 HTS725050A7E630
3691 Points ∼57% -23%
Apple MacBook 12 (Early 2016) 1.1 GHz
HD Graphics 515, 6Y30, Apple SSD AP0256
3550 Points ∼54% -26%
Home Score Accelerated v2
HP EliteBook 820 G4 Z2V72ET
HD Graphics 620, 7500U, Samsung PM951 NVMe MZVLV512
3660 Points ∼61%
Dell Latitude 12 E7270
HD Graphics 520, 6300U, Liteon L8H-256V2G
3420 Points ∼57% -7%
HP EliteBook 820 G3
HD Graphics 520, 6300U, Samsung SM951 MZVPV256HDGL m.2 PCI-e
3400 Points ∼57% -7%
Lenovo ThinkPad X260-20F6007RGE
HD Graphics 520, 6500U, Liteonit LCH-512V2S
3284 Points ∼55% -10%
Toshiba Portege Z30-C-138
HD Graphics 520, 6500U, Toshiba HG6 THNSNJ512G8NY
3271 Points ∼55% -11%
HP EliteBook 725 G3-P4T48EA
Radeon R6 (Carrizo), Pro A10-8700B, Hitachi Travelstar Z7K500 HTS725050A7E630
2706 Points ∼45% -26%
Apple MacBook 12 (Early 2016) 1.1 GHz
HD Graphics 515, 6Y30, Apple SSD AP0256
2550 Points ∼43% -30%
Samsung PM951 NVMe MZVLV512
Sequential Read: 1315 MB/s
Sequential Write: 594.2 MB/s
512K Read: 660.9 MB/s
512K Write: 594.4 MB/s
4K Read: 42.87 MB/s
4K Write: 151.6 MB/s
4K QD32 Read: 567.8 MB/s
4K QD32 Write: 491.7 MB/s
HP EliteBook 820 G4 Z2V72ET
Samsung PM951 NVMe MZVLV512
HP EliteBook 820 G3
Samsung SM951 MZVPV256HDGL m.2 PCI-e
Lenovo ThinkPad X260-20F6007RGE
Liteonit LCH-512V2S
Toshiba Portege Z30-C-138
Toshiba HG6 THNSNJ512G8NY
Dell Latitude 12 E7270
Liteon L8H-256V2G
Apple MacBook 12 (Early 2016) 1.1 GHz
Apple SSD AP0256
CrystalDiskMark 3.0
23%
-44%
-48%
-50%
-29%
Write 4k QD32
491.7
343.9
-30%
273.1
-44%
174.7
-64%
241.9
-51%
315
-36%
Read 4k QD32
567.8
549.4
-3%
316.5
-44%
227.3
-60%
280.5
-51%
464
-18%
Write 4k
151.6
134.1
-12%
83.55
-45%
86.27
-43%
88.04
-42%
20.5
-86%
Read 4k
42.87
51.05
19%
27.22
-37%
21.17
-51%
24.89
-42%
14.6
-66%
Write 512
594.4
811.3
36%
372.4
-37%
379.9
-36%
678
14%
Read 512
660.9
1131
71%
322.9
-51%
414.8
-37%
616
-7%
Write Seq
594.2
1240
109%
403
-32%
423.3
-29%
286.7
-52%
638
7%
Read Seq
1315
1255
-5%
499.6
-62%
518.2
-61%
498.4
-62%
754
-43%
3DMark 06 Standard
7375 points
3DMark 11 Performance
1645 points
3DMark Ice Storm Standard Score
56060 points
3DMark Cloud Gate Standard Score
6084 points
3DMark Fire Strike Score
822 points
3DMark Fire Strike Extreme Score
370 points
Help
3DMark 11 - 1280x720 Performance GPU
HP EliteBook 725 G3-P4T48EA
AMD Radeon R6 (Carrizo), AMD Pro A10-8700B
1767 Points ∼3% +17%
HP EliteBook 725 G3-P4T48EA
AMD Radeon R6 (Carrizo), AMD Pro A10-8700B
1432 Points ∼3% -5%
HP EliteBook 820 G4 Z2V72ET
Intel HD Graphics 620, Intel Core i7-7500U
1515 Points ∼3%
Toshiba Portege Z30-C-138
Intel HD Graphics 520, Intel Core i7-6500U
1377 Points ∼3% -9%
Dell Latitude 12 E7270
Intel HD Graphics 520, Intel Core i5-6300U
1307 Points ∼3% -14%
HP EliteBook 820 G3
Intel HD Graphics 520, Intel Core i5-6300U
1280 Points ∼3% -16%
Lenovo ThinkPad X260-20F6007RGE
Intel HD Graphics 520, Intel Core i7-6500U
1268 Points ∼2% -16%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel HD Graphics 515, Intel Core m3-6Y30
1186 Points ∼2% -22%
3DMark
1920x1080 Fire Strike Graphics
HP EliteBook 725 G3-P4T48EA
AMD Radeon R6 (Carrizo), AMD Pro A10-8700B
983 Points ∼2% +11%
HP EliteBook 725 G3-P4T48EA
AMD Radeon R6 (Carrizo), AMD Pro A10-8700B
769 Points ∼2% -13%
HP EliteBook 820 G4 Z2V72ET
Intel HD Graphics 620, Intel Core i7-7500U
886 Points ∼2%
Lenovo ThinkPad X260-20F6007RGE
Intel HD Graphics 520, Intel Core i7-6500U
791 Points ∼2% -11%
HP EliteBook 820 G3
Intel HD Graphics 520, Intel Core i5-6300U
755 Points ∼2% -15%
Dell Latitude 12 E7270
Intel HD Graphics 520, Intel Core i5-6300U
748 Points ∼2% -16%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel HD Graphics 515, Intel Core m3-6Y30
735 Points ∼2% -17%
1280x720 Cloud Gate Standard Graphics
HP EliteBook 820 G4 Z2V72ET
Intel HD Graphics 620, Intel Core i7-7500U
7618 Points ∼5%
Lenovo ThinkPad X260-20F6007RGE
Intel HD Graphics 520, Intel Core i7-6500U
6287 Points ∼4% -17%
Dell Latitude 12 E7270
Intel HD Graphics 520, Intel Core i5-6300U
6248 Points ∼4% -18%
HP EliteBook 820 G3
Intel HD Graphics 520, Intel Core i5-6300U
6131 Points ∼4% -20%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel HD Graphics 515, Intel Core m3-6Y30
6078 Points ∼4% -20%
HP EliteBook 725 G3-P4T48EA
AMD Radeon R6 (Carrizo), AMD Pro A10-8700B
4717 Points ∼3% -38%
low med. high ultra
Tomb Raider (2013) 70.336.221.310.4fps
BioShock Infinite (2013) 41.925.921.36.9fps
Battlefield 4 (2013) 3326.917.46.1fps

Noise Level

Idle
30.7 / 30.7 / 30.7 dB(A)
Load
35.3 / 33.7 dB(A)
 
 
 
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: 30.7 dB(A)
HP EliteBook 820 G4 Z2V72ET
7500U, HD Graphics 620
HP EliteBook 820 G3
6300U, HD Graphics 520
HP EliteBook 725 G3-P4T48EA
Pro A10-8700B, Radeon R6 (Carrizo)
Lenovo ThinkPad X260-20F6007RGE
6500U, HD Graphics 520
Toshiba Portege Z30-C-138
6500U, HD Graphics 520
Dell Latitude 12 E7270
6300U, HD Graphics 520
Noise
2%
-2%
2%
-10%
4%
off / environment *
30.7
29.2
5%
28.9
6%
29
6%
31.2
-2%
28.9
6%
Idle Minimum *
30.7
29.2
5%
30.5
1%
29
6%
31.2
-2%
28.9
6%
Idle Average *
30.7
29.2
5%
30.5
1%
29
6%
31.2
-2%
28.9
6%
Idle Maximum *
30.7
29.2
5%
30.5
1%
29
6%
31.2
-2%
28.9
6%
Load Average *
35.3
35.6
-1%
38.2
-8%
35.1
1%
43.3
-23%
31.3
11%
Load Maximum *
33.7
37
-10%
38.4
-14%
37.8
-12%
43.3
-28%
37.6
-12%

* ... smaller is better

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2036.936.633.235.836.92534.236.833.633.334.23132.832.131.932.632.84030.931.331.531.330.95029.230.930.329.929.26329.130.830.931.129.18028.828.428.228.228.810027.227.72828.327.212525.826.326.725.325.816026.125.925.825.626.12002425.125.424.92425023.624.523.523.523.631523.123.922.922.923.140021.52321.821.821.550020.9222220.920.963020.221.321.119.920.280019.622.722.119.319.6100019.224.52318.919.2125018.321.920.718.218.316001823.321.818.218200017.724.522.917.817.7250017.827.724.217.617.8315017.72421.717.617.7400017.521.520.117.617.5500017.721.720.717.617.7630017.720.218.817.817.7800017.919.118.317.817.91000017.918.317.917.717.91250017.718.617.817.517.71600017.918.717.917.717.9SPL30.835.433.730.830.8N1.52.221.51.5median 18.3HP EliteBook 820 G4 Z2V72ETmedian 23median 21.8median 18.2median 18.3Delta2.31.51.52.32.3hearing rangehide median Fan Noise
Max. Load
 36.2 °C37 °C30.7 °C 
 32.1 °C33.2 °C29.2 °C 
 27.8 °C27.1 °C27.6 °C 
Maximum: 37 °C
Average: 31.2 °C
31.4 °C38.9 °C34.6 °C
29.8 °C31.2 °C30 °C
27.1 °C27.5 °C28 °C
Maximum: 38.9 °C
Average: 30.9 °C
Power Supply (max.)  34.9 °C | Room Temperature 22 °C | FIRT 550-Pocket
HP EliteBook 820 G4 Z2V72ET
7500U, HD Graphics 620
HP EliteBook 820 G3
6300U, HD Graphics 520
HP EliteBook 725 G3-P4T48EA
Pro A10-8700B, Radeon R6 (Carrizo)
Lenovo ThinkPad X260-20F6007RGE
6500U, HD Graphics 520
Toshiba Portege Z30-C-138
6500U, HD Graphics 520
Dell Latitude 12 E7270
6300U, HD Graphics 520
Apple MacBook 12 (Early 2016) 1.1 GHz
6Y30, HD Graphics 515
Heat
-9%
-29%
-27%
3%
-27%
-15%
Maximum Upper Side *
37
39.6
-7%
42.8
-16%
47.5
-28%
40.6
-10%
44.3
-20%
39
-5%
Maximum Bottom *
38.9
40.1
-3%
54.3
-40%
43.6
-12%
37
5%
52.6
-35%
44
-13%
Idle Upper Side *
26.3
29.4
-12%
33.2
-26%
34.9
-33%
24.5
7%
32.3
-23%
32
-22%
Idle Bottom *
27
30.6
-13%
36.5
-35%
35.9
-33%
24.9
8%
35.1
-30%
32
-19%

* ... smaller is better

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2037.235.837.2253833.3383136.532.636.5403631.3365037.229.937.26339.231.139.28037.828.237.810038.828.338.812538.725.338.716042.125.642.120044.424.944.425046.323.546.331556.222.956.240058.221.858.250058.220.958.26306019.96080059.519.359.5100063.818.963.812505918.259160058.318.258.3200059.517.859.5250064.717.664.731506317.663400064.817.664.8500064.917.664.9630065.617.865.6800067.117.867.11000063.717.763.71250058.217.558.21600057.317.757.3SPL75.130.875.1N35.91.535.9median 59HP EliteBook 820 G4 Z2V72ETmedian 18.2median 59Delta6.72.36.735.335.132.931.831.83236.535.132.428.93328.936.328.848.32761.52752.924.860.92462.822.763.32269.521.267.82174.82075.919.472.718.97117.770.117.86917.671.817.668.117.671.417.673.717.670.417.571.617.671.617.669.617.459.717.583.630.662.51.5median 69.6Apple MacBook 12 (Early 2016) 1.1 GHzmedian 17.84.62.4hearing rangehide median Pink Noise
HP EliteBook 820 G4 Z2V72ET audio analysis

(-) | not very loud speakers (66 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 14.6% lower than median
(±) | linearity of bass is average (7.6% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 1.1% away from median
(+) | mids are linear (4.7% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.8% higher than median
(+) | highs are linear (5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (14.9% difference to median)
Compared to same class
» 24% of all tested devices in this class were better, 7% similar, 69% worse
» The best had a delta of 9%, average was 20%, worst was 47%
Compared to all devices tested
» 16% of all tested devices were better, 4% similar, 80% 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
» 1% of all tested devices in this class were better, 1% similar, 97% worse
» The best had a delta of 9%, average was 20%, worst was 47%
Compared to all devices tested
» 2% 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 0.44 / 0.49 Watt
Idledarkmidlight 2.7 / 4.8 / 6.6 Watt
Load midlight 28.5 / 29 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
HP EliteBook 820 G4 Z2V72ET
7500U, HD Graphics 620
HP EliteBook 820 G3
6300U, HD Graphics 520
HP EliteBook 725 G3-P4T48EA
Pro A10-8700B, Radeon R6 (Carrizo)
Lenovo ThinkPad X260-20F6007RGE
6500U, HD Graphics 520
Toshiba Portege Z30-C-138
6500U, HD Graphics 520
Dell Latitude 12 E7270
6300U, HD Graphics 520
Apple MacBook 12 (Early 2016) 1.1 GHz
6Y30, HD Graphics 515
Power Consumption
-14%
-70%
-19%
-37%
-18%
17%
Idle Minimum *
2.7
3.5
-30%
5.4
-100%
3.5
-30%
3.2
-19%
3.8
-41%
2.7
-0%
Idle Average *
4.8
5.4
-13%
7.5
-56%
5.5
-15%
7.8
-63%
6.7
-40%
2.7
44%
Idle Maximum *
6.6
6.2
6%
13
-97%
6.7
-2%
8.7
-32%
7.2
-9%
7.2
-9%
Load Average *
28.5
27.3
4%
41.2
-45%
28.9
-1%
42.2
-48%
27.2
5%
22
23%
Load Maximum *
29
39.5
-36%
44.7
-54%
42.1
-45%
35.7
-23%
30.2
-4%
20.5
29%

* ... smaller is better

Battery Runtime
Idle (without WLAN, min brightness)
22h 26min
WiFi Surfing v1.3 (Edge 38)
9h 26min
Big Buck Bunny H.264 1080p
8h 52min
Load (maximum brightness)
3h 25min
HP EliteBook 820 G4 Z2V72ET
7500U, HD Graphics 620, 49 Wh
HP EliteBook 820 G3
6300U, HD Graphics 520, 44 Wh
HP EliteBook 725 G3-P4T48EA
Pro A10-8700B, Radeon R6 (Carrizo), 44 Wh
Lenovo ThinkPad X260-20F6007RGE
6500U, HD Graphics 520, 46 Wh
Toshiba Portege Z30-C-138
6500U, HD Graphics 520, 52 Wh
Dell Latitude 12 E7270
6300U, HD Graphics 520, 55 Wh
Apple MacBook 12 (Early 2016) 1.1 GHz
6Y30, HD Graphics 515, 41.4 Wh
Battery Runtime
-28%
-55%
-27%
-39%
-19%
-1%
Reader / Idle
1346
826
-39%
553
-59%
953
-29%
1050
-22%
H.264
532
495
-7%
258
-52%
466
-12%
512
-4%
WiFi v1.3
566
373
-34%
281
-50%
501
-11%
345
-39%
508
-10%
501
-11%
Load
205
144
-30%
83
-60%
92
-55%
153
-25%
231
13%

Pros

+ IPS显示屏
+ 全高清分辨率
+ 坚固,制作精良的机身
+ 良好的输入设备
+ NVMe固态硬盘
+ LTE调制解调器
+ 非常好的电池续航
+ 三年保修

Cons

- 当风扇以较高的速度旋转时,啸叫声变得可以听见。
- 价格高
- 在多线程负载下,处理器加速不能被最大程度利用。
In review: HP EliteBook 820 G4 Z2V72ET. Test model provided by Notebooksbilliger.de
In review: HP EliteBook 820 G4 Z2V72ET. Test model provided by Notebooksbilliger.de

惠普 EliteBook 820 G4主要是更新了Kaby Lake,它也许能让拥有老型号的用户产生兴趣。然而,这并不是因为Kaby Lake与Skylake相比之下的性能那点增益。

显著延长电池续航时间,使计算机(更)具有吸引力。

无论负载如何,计算机保持低温,大多数时间工作运行安静。只要风扇静止或以非常低的速度工作,设备安静。否则,您可能会听到安静的哨声。这种情况不应该发生在这个价位的电脑上; 并且,我们已经在前代的测评中批评了这一点。

快速NVMe-固态硬盘确保系统响应速度。固态硬盘可更换。这需要拆开笔记本电脑的D面——不太费劲。外壳和键盘保持不变:惠普提供我们所习惯的质量保证。

我们很少赞赏惠普的商务笔记本的显示屏。然而,这一次有所不同:惠普提供了一个明亮、对比度丰富、视角稳定的IPS面板屏幕。开箱即用时,色彩表现也很优秀。

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 820 G4 Z2V72ET - 02/24/2017 v6
Sascha Mölck

Chassis
91 /  98 → 93%
Keyboard
87%
Pointing Device
89%
Connectivity
63 / 80 → 79%
Weight
72 / 78 → 86%
Battery
91%
Display
85%
Games Performance
55 / 68 → 81%
Application Performance
89 / 87 → 100%
Temperature
94 / 91 → 100%
Noise
93%
Audio
64 / 91 → 70%
Camera
40 / 85 → 47%
Average
78%
88%
Subnotebook - Weighted Average

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> Notebookcheck中文版(NBC中国) > 评测 > 惠普 EliteBook 820 G4 (7500U, 全高清)笔记本简短评测
Sascha Mölck, 2017-03- 4 (Update: 2017-03-11)