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

Name: HP EliteBook 820 G4 Z2V72ET
Brand: HP

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。

Sascha Mölck, ✓ Stefanie Voigt (translated by Kangfei Zheng), Published 03/04/2017 🇺🇸 🇩🇪 ...

Business Kaby Lake Laptop / Notebook Windows

Test device courtesy of notebooksbilliger.de

Download your licensed rating image as PNG / SVG

HP EliteBook 820 G4 Z2V72ET (EliteBook 820 Series)

Processor

Intel Core i7-7500U 2 x 2.7 - 3.5 GHz, Kaby Lake

Graphics adapter

Intel HD Graphics 620, Core: 1000 MHz, 单通道, 21.20.16.4541

Memory

16 GB

, DDR4-2400, 单通道, 两内存槽(一个已占用)

Display

12.50 inch 16:9, 1920 x 1080 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/s), Intel Dual Band Wireless-AC 8265 (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5/), 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

Links

HP homepage
EliteBook 820 (Series)

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

see all specifications

Size Comparison

Toshiba Portege Z30-C-138 HP EliteBook 820 G3 HP EliteBook 725 G3-P4T48EA HP EliteBook 820 G4 Z2V72ET Dell Latitude 12 E7270 Lenovo ThinkPad X260-20F6007RGE DIN A4 ❌

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

SD Card Reader
average JPG Copy Test (av. of 3 runs)
Dell Latitude 12 E7270	130.5 MB/s +68%
HP EliteBook 820 G4 Z2V72ET	77.8 MB/s
HP EliteBook 820 G3	73.7 MB/s -5%
Toshiba Portege Z30-C-138	73.3 MB/s -6%
Lenovo ThinkPad X260-20F6007RGE	63.2 MB/s -19%
HP EliteBook 725 G3-P4T48EA	54.2 MB/s -30%
maximum AS SSD Seq Read Test (1GB)
Dell Latitude 12 E7270	202.6 MB/s +134%
HP EliteBook 820 G3	86.9 MB/s 0%
HP EliteBook 820 G4 Z2V72ET	86.6 MB/s
Toshiba Portege Z30-C-138	85.8 MB/s -1%
Lenovo ThinkPad X260-20F6007RGE	83.5 MB/s -4%
HP EliteBook 725 G3-P4T48EA	81.8 MB/s -6%

Networking
iperf3 transmit AX12
HP EliteBook 820 G4 Z2V72ET Intel Dual Band Wireless-AC 8265 (jseb)	474 MBit/s
iperf3 receive AX12
HP EliteBook 820 G4 Z2V72ET Intel Dual Band Wireless-AC 8265 (jseb)	506 MBit/s
iperf Client (transmit) TCP 1 m
Apple MacBook 12 (Early 2016) 1.1 GHz Broadcom 802.11ac	397 MBit/s
iperf Server (receive) TCP 1 m
Apple MacBook 12 (Early 2016) 1.1 GHz Broadcom 802.11ac	570 MBit/s


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

Chi Mei tested with X-Rite i1Pro 2

Maximum: 326 cd/m² (Nits) 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 | 0.5-29.43 Ø4.93
ΔE Greyscale 6.16 | 0.5-98 Ø5.2
65% sRGB (Argyll 1.6.3 3D)
42% AdobeRGB 1998 (Argyll 1.6.3 3D)
46.04% AdobeRGB 1998 (Argyll 2.2.0 3D)
65.5% sRGB (Argyll 2.2.0 3D)
44.45% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.32

Download ICC File (X-Rite i1Pro 2)

	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"
Display		-12%	7%	1%	52%	-11%	48%
Display P3 Coverage	44.45	38.9 -12%	47.15 6%	44.71 1%	67.9 53%	39.7 -11%	66.8 50%
sRGB Coverage	65.5	58.5 -11%	71 8%	66.1 1%	98 50%	59.2 -10%	95.4 46%
AdobeRGB 1998 Coverage	46.04	40.2 -13%	48.71 6%	46.23 0%	69.8 52%	41.07 -11%	68 48%
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		-33%	-24%	4%	13%	-12%	26%
Brightness middle	326	244 -25%	241 -26%	337 3%	300 -8%	353 8%	387 19%
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 dE 2000 *	6.49	9 -39%	8.04 -24%	5.71 12%	4.9 24%	7.79 -20%	1.6 75%
Colorchecker dE 2000 max. *	15.95	15.73 1%	13.9 13%	15.39 4%	8.91 44%	15.19 5%	4 75%
Greyscale dE 2000 *	6.16	9.48 -54%	9.52 -55%	5.15 16%	6.69 -9%	7.38 -20%	1 84%
Gamma	2.32 ^95%	2.44 ^90%	2.42 ^91%	2.38 ^92%	2.33 ^94%	2.43 ^91%	2.26 ^97%
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)		-28% / -29%	-12% / -17%	2% / 3%	17% / 17%	-11% / -11%	19% / 25%

* ... smaller is better

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 not detected

In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8774 (minimum: 5 - maximum: 343500) Hz was measured.

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
26 ms ... rise ↗ and fall ↘ combined	↗ 7 ms rise
26 ms ... rise ↗ and fall ↘ combined	↘ 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 0.1 (minimum) to 240 (maximum) ms. » 59 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (21 ms).
↔ Response Time 50% Grey to 80% Grey
35 ms ... rise ↗ and fall ↘ combined	↗ 16 ms rise
35 ms ... rise ↗ and fall ↘ combined	↘ 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 0.165 (minimum) to 636 (maximum) ms. » 44 % of all devices are better. This means that the measured response time is similar to the average of all tested devices (32.9 ms).

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

... in comparison

Cinebench R15 | Cinebench R11.5 | Geekbench 3 | Geekbench 4.0 | JetStream 1.1

Cinebench R15
CPU Single 64Bit
HP EliteBook 820 G4 Z2V72ET Intel Core i7-7500U	139 Points
Lenovo ThinkPad X260-20F6007RGE Intel Core i7-6500U	128 Points -8%
Dell Latitude 12 E7270 Intel Core i5-6300U	124 Points -11%
HP EliteBook 820 G3 Intel Core i5-6300U	123 Points -12%
Apple MacBook 12 (Early 2016) 1.1 GHz Intel Core m3-6Y30	91 Points -35%
Apple MacBook 12 (Early 2016) 1.1 GHz Intel Core m3-6Y30	90 Points -35%
Toshiba Portege Z30-C-138 Intel Core i7-6500U	84 Points -40%
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	70 Points -50%
CPU Multi 64Bit
HP EliteBook 820 G4 Z2V72ET Intel Core i7-7500U	329 Points
Lenovo ThinkPad X260-20F6007RGE Intel Core i7-6500U	324 Points -2%
HP EliteBook 820 G3 Intel Core i5-6300U	311 Points -5%
Dell Latitude 12 E7270 Intel Core i5-6300U	311 Points -5%
Toshiba Portege Z30-C-138 Intel Core i7-6500U	288 Points -12%
Apple MacBook 12 (Early 2016) 1.1 GHz Intel Core m3-6Y30	218 Points -34%
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	192 Points -42%

Cinebench R11.5
CPU Single 64Bit
HP EliteBook 820 G4 Z2V72ET Intel Core i7-7500U	1.65 Points
Lenovo ThinkPad X260-20F6007RGE Intel Core i7-6500U	1.47 Points -11%
Dell Latitude 12 E7270 Intel Core i5-6300U	1.42 Points -14%
Apple MacBook 12 (Early 2016) 1.1 GHz Intel Core m3-6Y30	1 Points -39%
Apple MacBook 12 (Early 2016) 1.1 GHz Intel Core m3-6Y30	0.95 Points -42%
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	0.82 Points -50%
CPU Multi 64Bit
HP EliteBook 820 G4 Z2V72ET Intel Core i7-7500U	3.66 Points
Lenovo ThinkPad X260-20F6007RGE Intel Core i7-6500U	3.57 Points -2%
Dell Latitude 12 E7270 Intel Core i5-6300U	3.47 Points -5%
Apple MacBook 12 (Early 2016) 1.1 GHz Intel Core m3-6Y30	2.35 Points -36%
Apple MacBook 12 (Early 2016) 1.1 GHz Intel Core m3-6Y30	2.29 Points -37%
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	2.29 Points -37%

Geekbench 3
32 Bit Single-Core Score
HP EliteBook 820 G4 Z2V72ET Intel Core i7-7500U	3234 Points
Lenovo ThinkPad X260-20F6007RGE Intel Core i7-6500U	2956 Points -9%
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	950 Points -71%
32 Bit Multi-Core Score
HP EliteBook 820 G4 Z2V72ET Intel Core i7-7500U	7216 Points
Lenovo ThinkPad X260-20F6007RGE Intel Core i7-6500U	6395 Points -11%
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	2728 Points -62%

Geekbench 4.0
64 Bit Single-Core Score
HP EliteBook 820 G4 Z2V72ET Intel Core i7-7500U	4046 Points
64 Bit Multi-Core Score
HP EliteBook 820 G4 Z2V72ET Intel Core i7-7500U	7671 Points

JetStream 1.1 - Total Score
HP EliteBook 820 G4 Z2V72ET Intel Core i7-7500U	242.4 Points
Toshiba Portege Z30-C-138 Intel Core i7-6500U	220 Points -9%
Lenovo ThinkPad X260-20F6007RGE Intel Core i7-6500U	217.3 Points -10%
Dell Latitude 12 E7270 Intel Core i5-6300U	210.7 Points -13%
HP EliteBook 820 G3 Intel Core i5-6300U	188 Points -22%
Apple MacBook 12 (Early 2016) 1.1 GHz Intel Core m3-6Y30	143 Points -41%
Apple MacBook 12 (Early 2016) 1.1 GHz Intel Core m3-6Y30	130.7 Points -46%
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	111.2 Points -54%
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	66.4 Points -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

... in comparison

PCMark 8
Home Score Accelerated v2
HP EliteBook 820 G4 Z2V72ET HD Graphics 620, i7-7500U, Samsung PM951 NVMe MZVLV512	3660 Points
Dell Latitude 12 E7270 HD Graphics 520, 6300U, Liteon L8H-256V2G	3420 Points -7%
HP EliteBook 820 G3 HD Graphics 520, 6300U, Samsung SM951 MZVPV256HDGL m.2 PCI-e	3400 Points -7%
Lenovo ThinkPad X260-20F6007RGE HD Graphics 520, 6500U, Liteonit LCH-512V2S	3284 Points -10%
Toshiba Portege Z30-C-138 HD Graphics 520, 6500U, Toshiba HG6 THNSNJ512G8NY	3271 Points -11%
HP EliteBook 725 G3-P4T48EA Radeon R6 (Carrizo), Pro A10-8700B, Hitachi Travelstar Z7K500 HTS725050A7E630	2706 Points -26%
Apple MacBook 12 (Early 2016) 1.1 GHz HD Graphics 515, 6Y30, Apple SSD AP0256	2550 Points -30%
Work Score Accelerated v2
HP EliteBook 820 G4 Z2V72ET HD Graphics 620, i7-7500U, Samsung PM951 NVMe MZVLV512	4824 Points
HP EliteBook 820 G3 HD Graphics 520, 6300U, Samsung SM951 MZVPV256HDGL m.2 PCI-e	4581 Points -5%
Dell Latitude 12 E7270 HD Graphics 520, 6300U, Liteon L8H-256V2G	4395 Points -9%
Lenovo ThinkPad X260-20F6007RGE HD Graphics 520, 6500U, Liteonit LCH-512V2S	4341 Points -10%
HP EliteBook 725 G3-P4T48EA Radeon R6 (Carrizo), Pro A10-8700B, Hitachi Travelstar Z7K500 HTS725050A7E630	3691 Points -23%
Apple MacBook 12 (Early 2016) 1.1 GHz HD Graphics 515, 6Y30, Apple SSD AP0256	3550 Points -26%

CrystalDiskMark 3.0

AS SSD

Samsung PM951 NVMe MZVLV512

Sequential Read: 1315 MB/s

Sequential Write: 594 MB/s

512K Read: 661 MB/s

512K Write: 594 MB/s

4K Read: 42.87 MB/s

4K Write: 151.6 MB/s

4K QD32 Read: 568 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%
Read Seq	1315	1255 -5%	499.6 -62%	518 -61%	498.4 -62%	754 -43%
Write Seq	594	1240 109%	403 -32%	423.3 -29%	286.7 -52%	638 7%
Read 512	661	1131 71%	322.9 -51%	414.8 -37%		616 -7%
Write 512	594	811 37%	372.4 -37%	379.9 -36%		678 14%
Read 4k	42.87	51 19%	27.22 -37%	21.17 -51%	24.89 -42%	14.6 -66%
Write 4k	151.6	134.1 -12%	83.6 -45%	86.3 -43%	88 -42%	20.5 -86%
Read 4k QD32	568	549 -3%	316.5 -44%	227.3 -60%	280.5 -51%	464 -18%
Write 4k QD32	491.7	343.9 -30%	273.1 -44%	174.7 -64%	241.9 -51%	315 -36%

3DMark 06 Standard Score		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

... in comparison

3DMark 11 | 3DMark

3DMark 11 - 1280x720 Performance GPU
HP EliteBook 725 G3-P4T48EA AMD Radeon R6 (Carrizo), AMD Pro A10-8700B	1767 Points +17%
HP EliteBook 725 G3-P4T48EA AMD Radeon R6 (Carrizo), AMD Pro A10-8700B	1432 Points -5%
HP EliteBook 820 G4 Z2V72ET Intel HD Graphics 620, Intel Core i7-7500U	1515 Points
Toshiba Portege Z30-C-138 Intel HD Graphics 520, Intel Core i7-6500U	1377 Points -9%
Dell Latitude 12 E7270 Intel HD Graphics 520, Intel Core i5-6300U	1307 Points -14%
HP EliteBook 820 G3 Intel HD Graphics 520, Intel Core i5-6300U	1280 Points -16%
Lenovo ThinkPad X260-20F6007RGE Intel HD Graphics 520, Intel Core i7-6500U	1268 Points -16%
Apple MacBook 12 (Early 2016) 1.1 GHz Intel HD Graphics 515, Intel Core m3-6Y30	1186 Points -22%

3DMark
1280x720 Cloud Gate Standard Graphics
HP EliteBook 820 G4 Z2V72ET Intel HD Graphics 620, Intel Core i7-7500U	7618 Points
Lenovo ThinkPad X260-20F6007RGE Intel HD Graphics 520, Intel Core i7-6500U	6287 Points -17%
Dell Latitude 12 E7270 Intel HD Graphics 520, Intel Core i5-6300U	6248 Points -18%
HP EliteBook 820 G3 Intel HD Graphics 520, Intel Core i5-6300U	6131 Points -20%
Apple MacBook 12 (Early 2016) 1.1 GHz Intel HD Graphics 515, Intel Core m3-6Y30	6078 Points -20%
HP EliteBook 725 G3-P4T48EA AMD Radeon R6 (Carrizo), AMD Pro A10-8700B	4717 Points -38%
1920x1080 Fire Strike Graphics
HP EliteBook 725 G3-P4T48EA AMD Radeon R6 (Carrizo), AMD Pro A10-8700B	983 Points +11%
HP EliteBook 725 G3-P4T48EA AMD Radeon R6 (Carrizo), AMD Pro A10-8700B	769 Points -13%
HP EliteBook 820 G4 Z2V72ET Intel HD Graphics 620, Intel Core i7-7500U	886 Points
Lenovo ThinkPad X260-20F6007RGE Intel HD Graphics 520, Intel Core i7-6500U	791 Points -11%
HP EliteBook 820 G3 Intel HD Graphics 520, Intel Core i5-6300U	755 Points -15%
Dell Latitude 12 E7270 Intel HD Graphics 520, Intel Core i5-6300U	748 Points -16%
Apple MacBook 12 (Early 2016) 1.1 GHz Intel HD Graphics 515, Intel Core m3-6Y30	735 Points -17%

	low	med.	high	ultra
Tomb Raider (2013)	70.3	36.2	21.3	10.4
BioShock Infinite (2013)	41.9	25.9	21.3	6.9
Battlefield 4 (2013)	33	26.9	17.4	6.1

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: , med: , max: Audix TM1, Arta (15 cm distance) environment noise: 30.7 dB(A)

	HP EliteBook 820 G4 Z2V72ET i7-7500U, 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

Max. Load

Idle


36.2 °C	37 °C	30.7 °C
32.1 °C	33.2 °C	29.2 °C
27.8 °C	27.1 °C	27.6 °C

Maximum: 37 °C
Average: 31.2 °C


31.4 °C	38.9 °C	34.6 °C
29.8 °C	31.2 °C	30 °C
27.1 °C	27.5 °C	28 °C

Maximum: 38.9 °C
Average: 30.9 °C

Power Supply (max.) 34.9 °C | Room Temperature 22 °C | FIRT 550-Pocket

(+) The average temperature for the upper side under maximal load is 31.2 °C / 88 F, compared to the average of 30.8 °C / 87 F for the devices in the class Subnotebook.
(+) The maximum temperature on the upper side is 37 °C / 99 F, compared to the average of 36.1 °C / 97 F, ranging from 21.4 to 281 °C for the class Subnotebook.
(+) The bottom heats up to a maximum of 38.9 °C / 102 F, compared to the average of 39.4 °C / 103 F
(+) In idle usage, the average temperature for the upper side is 25.7 °C / 78 F, compared to the device average of 30.8 °C / 87 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 27.8 °C / 82 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 28.3 °C / 82.9 F (+0.5 °C / 0.9 F).

	HP EliteBook 820 G4 Z2V72ET i7-7500U, 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

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
(±) | linearity of overall sound is average (17.6% difference to median)
Compared to same class
» 45% of all tested devices in this class were better, 8% similar, 47% worse
» The best had a delta of 5%, average was 19%, worst was 53%
Compared to all devices tested
» 31% of all tested devices were better, 8% similar, 61% worse
» The best had a delta of 4%, average was 25%, worst was 134%

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 (10.2% difference to median)
Compared to same class
» 6% of all tested devices in this class were better, 2% similar, 92% worse
» The best had a delta of 5%, average was 19%, worst was 53%
Compared to all devices tested
» 4% of all tested devices were better, 1% similar, 95% worse
» The best had a delta of 4%, average was 25%, worst was 134%

Power Consumption

Off / Standby	0.44 / 0.49 Watt
Idle	2.7 / 4.8 / 6.6 Watt
Load	28.5 / 29 Watt


Key: min: , med: , max: Metrahit Energy

	HP EliteBook 820 G4 Z2V72ET i7-7500U, 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 Websurfing (Edge 38)		9h 26min
Big Buck Bunny H.264 1080p		8h 52min
Load (maximum brightness)		3h 25min

	HP EliteBook 820 G4 Z2V72ET i7-7500U, 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

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 - 2017-02-24 02/24/2017 v6 ^(old)
Sascha Mölck

Chassis

91 / 98 → 93%

Keyboard

87%

Pointing Device

89%

Connectivity

63 / 80 → 79%

Weight

72 / 35-78 → 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

Price comparison

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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)

Size Comparison

Screen Flickering / PWM (Pulse-Width Modulation)

Display Response Times

HP EliteBook 820 G4 Z2V72ET audio analysis

Apple MacBook 12 (Early 2016) 1.1 GHz audio analysis

Pros

Cons

More articles related to this device

Price comparison