Radeon HD 6870 vs Radeon RX 640

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6870 and Radeon RX 640. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon HD 6870 and Radeon RX 640. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Radeon HD 6870 Check Price

Radeon RX 640 Check Price

Radeon RX 640 is a Laptop Graphics Card

Note: Radeon RX 640 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon RX 640 here:

Radeon RX 640 Laptops

Main Specs

	Radeon HD 6870	Radeon RX 640
Power consumption (TDP)	151 Watt	50 Watt
Interface	PCIe 2.0 x16	PCIe 3.0 x8
Supplementary power connectors	2x 6-pin	None
Memory type	GDDR5	GDDR5
Maximum RAM amount	1 GB	4 GB
Display Connectors	2x DVI, 1x HDMI, 2x mini-DisplayPort	1x DVI, 1x HDMI, 1x DisplayPort
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Radeon HD 6870 has 202% more power consumption, than Radeon RX 640.
Radeon HD 6870 is connected by PCIe 2.0 x16, and Radeon RX 640 uses PCIe 3.0 x8 interface.
Radeon RX 640 has 3 GB more memory, than Radeon HD 6870.
Radeon HD 6870 is used in Desktops, and Radeon RX 640 - in Laptops.
Radeon HD 6870 is build with Terascale 2 architecture, and Radeon RX 640 - with Polaris.
Radeon HD 6870 is manufactured by 40 nm process technology, and Radeon RX 640 - by 14 nm process technology.
Memory clock speed of Radeon RX 640 is 4950 MHz higher, than Radeon HD 6870.

Game benchmarks


high / 1080p	10−12	5−6
ultra / 1080p	6−7	3−4
QHD / 1440p	1−2	2−3
low / 720p	24−27	16−18
medium / 1080p	12−14	7−8
The average gaming FPS of Radeon HD 6870 in Assassin's Creed Odyssey is 57% more, than Radeon RX 640.
high / 1080p	18−20	10−12
ultra / 1080p	14−16	8−9
QHD / 1440p	1−2	0−1
low / 720p	35−40	24−27
medium / 1080p	20−22	10−12
The average gaming FPS of Radeon HD 6870 in Battlefield 5 is 64% more, than Radeon RX 640.
low / 768p	45−50	45−50
high / 1080p	−	40−45
QHD / 1440p	0−1	0−1
Radeon HD 6870 and Radeon RX 640 have the same average FPS in Call of Duty: Warzone.
low / 768p	180−190	130−140
medium / 768p	140−150	100−110
ultra / 1080p	75−80	50−55
QHD / 1440p	40−45	27−30
4K / 2160p	30−33	12−14
high / 768p	110−120	80−85
The average gaming FPS of Radeon HD 6870 in Counter-Strike: Global Offensive is 43% more, than Radeon RX 640.
low / 768p	55−60	50−55
ultra / 1080p	30−33	18−20
medium / 1080p	45−50	45−50
The average gaming FPS of Radeon HD 6870 in Cyberpunk 2077 is 15% more, than Radeon RX 640.
low / 768p	95−100	80−85
medium / 768p	75−80	55−60
ultra / 1080p	50−55	30−35
The average gaming FPS of Radeon HD 6870 in Dota 2 is 31% more, than Radeon RX 640.
high / 1080p	12−14	7−8
ultra / 1080p	12−14	5−6
4K / 2160p	5−6	5−6
low / 720p	27−30	18−20
medium / 1080p	14−16	8−9
The average gaming FPS of Radeon HD 6870 in Far Cry 5 is 66% more, than Radeon RX 640.
high / 1080p	20−22	7−8
ultra / 1080p	14−16	0−1
QHD / 1440p	−	0−1
low / 720p	80−85	60−65
medium / 1080p	35−40	18−20
The average gaming FPS of Radeon HD 6870 in Fortnite is 62% more, than Radeon RX 640.
high / 1080p	18−20	10−11
ultra / 1080p	14−16	−
QHD / 1440p	5−6	−
4K / 2160p	−	8−9
low / 720p	40−45	24−27
medium / 1080p	21−24	12−14
The average gaming FPS of Radeon HD 6870 in Forza Horizon 4 is 75% more, than Radeon RX 640.
low / 768p	70−75	50−55
medium / 768p	60−65	−
high / 1080p	21−24	10−12
ultra / 1080p	9−10	5−6
QHD / 1440p	0−1	−
medium / 720p	−	45−50
The average gaming FPS of Radeon HD 6870 in Grand Theft Auto V is 47% more, than Radeon RX 640.
high / 1080p	7−8	3−4
ultra / 1080p	5−6	1−2
4K / 2160p	1−2	−
low / 720p	21−24	10−11
medium / 1080p	9−10	5−6
The average gaming FPS of Radeon HD 6870 in Metro Exodus is 120% more, than Radeon RX 640.
low / 768p	100−110	90−95
ultra / 1080p	90−95	80−85
medium / 1080p	100−105	−
The average gaming FPS of Radeon HD 6870 in Minecraft is 12% more, than Radeon RX 640.
high / 1080p	18−20	6−7
ultra / 1080p	16−18	2−3
4K / 2160p	−	0−1
low / 720p	45−50	27−30
medium / 1080p	21−24	10−11
The average gaming FPS of Radeon HD 6870 in PLAYERUNKNOWN'S BATTLEGROUNDS is 116% more, than Radeon RX 640.
high / 1080p	12−14	−
ultra / 1080p	8−9	−
QHD / 1440p	0−1	−
low / 720p	20−22	10−12
medium / 1080p	12−14	9−10
The average gaming FPS of Radeon HD 6870 in Red Dead Redemption 2 is 70% more, than Radeon RX 640.
low / 768p	40−45	21−24
medium / 768p	24−27	14−16
high / 1080p	14−16	6−7
ultra / 1080p	8−9	4−5
4K / 2160p	7−8	3−4
The average gaming FPS of Radeon HD 6870 in The Witcher 3: Wild Hunt is 90% more, than Radeon RX 640.
low / 768p	95−100	75−80
medium / 768p	55−60	40−45
ultra / 1080p	27−30	18−20
high / 768p	45−50	35−40
The average gaming FPS of Radeon HD 6870 in World of Tanks is 29% more, than Radeon RX 640.

Full Specs

	Radeon HD 6870	Radeon RX 640
Architecture	Terascale 2	Polaris
Code name	RV940 Barts	Polaris 12
Type	Desktop	Laptop
Release date	22 October 2010	12 August 2019
Pipelines	1120	640
Core clock speed		1218 MHz
Boost Clock	900 MHz	1218 MHz
Transistor count	1,700 million	2,200 million
Manufacturing process technology	40 nm	14 nm
Texture fill rate	50.40	38.98
Floating-point performance	2,016.0 gflops
Length	220 mm
Memory bus width	256 Bit	64 Bit
Memory clock speed	1050 MHz	6000 MHz
Memory bandwidth	134.4 GB/s	112.0 GB/s
Shared memory	-	-
DirectX		12 (12_0)
Shader Model	5.0	6.4
OpenGL	4.4	4.6
OpenCL	1.2	2.0
Vulkan		1.2.131
FreeSync		+
Bus support	PCIe 2.0 x16
HDMI	+
Bitcoin / BTC (SHA256)	213 Mh/s
Laptop size		large
Eyefinity	+
Design	reference
CrossFire	+
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Radeon HD 6870 vs Radeon RX 640

Radeon RX 640 is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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