Product comparison · 2 laptops

HP 640 G4 + UltraSlim Docking Station vs HP 820 G4 + Essential 15.6-inch Case, Keyboard & Mouse

146specifications compared
43differ
103identical
18known for one product only

Key differences

Display diagonal
- 640 G4 + UltraSlim Docking Station:35.6 cm (14")
- 820 G4 + Essential 15.6-inch Case, Keyboard & Mouse:31.8 cm (12.5")
Display resolution
- 640 G4 + UltraSlim Docking Station:1920 x 1080 pixels
- 820 G4 + Essential 15.6-inch Case, Keyboard & Mouse:1366 x 768 pixels
HD type
- 640 G4 + UltraSlim Docking Station:Full HD
- 820 G4 + Essential 15.6-inch Case, Keyboard & Mouse:HD
Panel type
- 640 G4 + UltraSlim Docking Station:IPS
- 820 G4 + Essential 15.6-inch Case, Keyboard & Mouse:SVA
Processor generation
- 640 G4 + UltraSlim Docking Station:8th gen Intel® Core™ i5
- 820 G4 + Essential 15.6-inch Case, Keyboard & Mouse:7th gen Intel® Core™ i5
Processor model
- 640 G4 + UltraSlim Docking Station:i5-8350U
- 820 G4 + Essential 15.6-inch Case, Keyboard & Mouse:i5-7200U
Processor cores
- 640 G4 + UltraSlim Docking Station:4
- 820 G4 + Essential 15.6-inch Case, Keyboard & Mouse:2
Processor threads
- 640 G4 + UltraSlim Docking Station:8
- 820 G4 + Essential 15.6-inch Case, Keyboard & Mouse:4

Side by side

Differences highlightedShow differences only

Comparison of 640 G4 + UltraSlim Docking Station, 820 G4 + Essential 15.6-inch Case, Keyboard & Mouse
164 specifications	A HP 640 G4 + UltraSlim Docking Station View product	B HP 820 G4 + Essential 15.6-inch Case, Keyboard & Mouse View product
Designidentical
Product type	Laptop	Laptop
Product colour	Silver	Silver
Form factor	Clamshell	Clamshell
Market positioning	Business	Business
Country of origin	China	China
Display4 differ
Display diagonalDiffers	35.6 cm (14")	31.8 cm (12.5")
Display resolutionDiffers	1920 x 1080 pixels	1366 x 768 pixels
Touchscreen	No	No
HD typeDiffers	Full HD	HD
Panel typeDiffers	IPS	SVA
LED backlight	Yes	Yes
Native aspect ratio	16:9	16:9
Dual-screenKnown for one	No	Unknown — not stated by the source
Processor11 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™ i5	Intel® Core™ i5
Processor generationDiffers	8th gen Intel® Core™ i5	7th gen Intel® Core™ i5
Processor modelDiffers	i5-8350U	i5-7200U
Processor coresDiffers	4	2
Processor threadsDiffers	8	4
Processor boost frequencyDiffers	3.6 GHz	3.1 GHz
Processor frequencyDiffers	1.7 GHz	2.5 GHz
System bus rate	4 GT/s	4 GT/s
Processor cacheDiffers	6 MB	3 MB
Processor cache type	Smart Cache	Smart Cache
Processor socket	BGA 1356	BGA 1356
Processor lithography	14 nm	14 nm
Processor operating modes	64-bit	64-bit
Processor codenameDiffers	Kaby Lake R	Kaby Lake
Bus type	OPI	OPI
SteppingDiffers	Y0	H0
Thermal Design Power (TDP)	15 W	15 W
Configurable TDP-up frequencyDiffers	1.9 GHz	2.7 GHz
Configurable TDP-up	25 W	25 W
Configurable TDP-downDiffers	10 W	7.5 W
Configurable TDP-down frequency	0.8 GHz	0.8 GHz
Tjunction	100 °C	100 °C
Maximum number of PCI Express lanes	12	12
PCI Express configurations	1x2+2x1, 1x4, 2x2, 4x1	1x2+2x1, 1x4, 2x2, 4x1
PCI Express slots version	3.0	3.0
ECC supported by processor	No	No
Memory3 differ
Internal memoryDiffers	8 GB	4 GB
Internal memory type	DDR4-SDRAM	DDR4-SDRAM
Memory clock speedDiffers	2400 MHz	2133 MHz
Memory form factor	SO-DIMM	SO-DIMM
Memory layout (slots x size)Differs	1 x 8 GB	1 x 4 GB
Memory slots	2x SO-DIMM	2x SO-DIMM
Maximum internal memory	32 GB	32 GB
Storage3 differ
Total storage capacityDiffers	256 GB	500 GB
Storage mediaDiffers	SSD	Hybrid-HDD
HDD interfaceKnown for one	Unknown — not stated by the source	SATA
HDD speedKnown for one	Unknown — not stated by the source	5400 RPM
Hybrid-HDD cache typeKnown for one	Unknown — not stated by the source	Flash
Hybrid-HDD capacityKnown for one	Unknown — not stated by the source	500 GB
Hybrid-HDD cache memoryKnown for one	Unknown — not stated by the source	8 GB
Optical drive type	No	No
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	MicroSD (TransFlash)	SD, SDHC, SDXC
Total SSDs capacityKnown for one	256 GB	Unknown — not stated by the source
Number of SSDs installedKnown for one	1	Unknown — not stated by the source
SSD capacityKnown for one	256 GB	Unknown — not stated by the source
NVMeKnown for one	Yes	Unknown — not stated by the source
SSD interfaceKnown for one	NVMe 3.0, PCI Express	Unknown — not stated by the source
Graphics4 differ
On-board graphics card	Yes	Yes
Discrete graphics card	No	No
Discrete graphics card model	Not available	Not available
On-board graphics card familyDiffers	Intel® UHD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® UHD Graphics 620	Intel® HD Graphics 620
Maximum on-board graphics card memory	32 GB	32 GB
On-board graphics card base frequency	300 MHz	300 MHz
On-board graphics card dynamic frequency (max)Differs	1100 MHz	1000 MHz
On-board graphics card DirectX version	12.0	12.0
On-board graphics card OpenGL version	4.4	4.4
On-board graphics card IDDiffers	0x5917	0x5916
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	Bang & Olufsen
Number of built-in speakers	2	2
Built-in microphone	Yes	Yes
Cameraidentical
Front camera	Yes	Yes
Front camera HD type	HD	HD
Front camera signal format	720p	720p
Networkidentical
Wi-Fi	Yes	Yes
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)	Wi-Fi 5 (802.11ac)
Wi-Fi standards	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Antenna type	2x2	2x2
WLAN controller model	Intel Dual Band Wireless-AC 8265	Intel Dual Band Wireless-AC 8265
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Bluetooth	Yes	Yes
Bluetooth version	4.2	4.2
Near Field Communication (NFC)Known for one	Unknown — not stated by the source	Yes
Ports & interfaces3 differ
USB 2.0 ports quantity	0	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	3	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	1	1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	0	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
HDMI ports quantityDiffers	1	0
DisplayPorts quantityDiffers	0	1
VGA (D-Sub) ports quantity	1	1
Thunderbolt 3 ports quantity	0	0
Combo headphone/mic port	Yes	Yes
Docking connector	Yes	Yes
HDMI versionKnown for one	1.4	Unknown — not stated by the source
Keyboard1 differ
Pointing deviceDiffers	Clickpad	Touchpad
Keyboard backlit	Yes	Yes
Numeric keypad	No	No
Spill-resistant keyboard	Yes	Yes
Softwareidentical
Operating system installed	Windows 10 Pro	Windows 10 Pro
Operating system architecture	64-bit	64-bit
Processor special features7 differ
Intel® Wireless Display (Intel® WiDi)Known for one	Unknown — not stated by the source	Yes
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	14 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel Secure Key Technology version	1.00	1.00
Intel Smart Response Technology version	1.00	1.00
Intel Software Guard Extensions (Intel SGX)	Yes	Yes
Intel Stable Image Platform Program (SIPP)Differs	Yes	No
Intel Stable Image Platform Program (SIPP) versionDiffers	1.00	0.00
Intel TSX-NIDiffers	Yes	No
Intel TSX-NI versionDiffers	1.00	0.00
Intel Trusted Execution TechnologyDiffers	Yes	No
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	Yes	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™Known for one	Unknown — not stated by the source	Yes
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® OS Guard	Yes	Yes
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)Known for one	Unknown — not stated by the source	Yes
Intel® Smart Response Technology	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Processor ARK IDDiffers	124969	95443
Processor codeDiffers	SR3L9	SR2ZU
Processor package size	42 x 24 mm	42 x 24 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2	AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Conflict-Free processor	Yes	Yes
Battery2 differ
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Number of battery cells	3	3
Battery capacityDiffers	48 Wh	49 Wh
Battery life (max)Differs	13.7 h	14.7 h
Poweridentical
AC adapter power	45 W	45 W
DC-in jack	Yes	Yes
Securityidentical
Cable lock slot	Yes	Yes
Trusted Platform Module (TPM)	Yes	Yes
Sustainability1 differ
Sustainability certificatesDiffers	EPEAT Gold, ENERGY STAR	ENERGY STAR
Weight & dimensions4 differ
WeightDiffers	1.73 kg	1.26 kg
WidthDiffers	340 mm	310 mm
DepthDiffers	240 mm	218.9 mm
HeightDiffers	20.9 mm	18.9 mm

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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