Radeon RX 640 vs HD 6970

Place in the ranking	535	616
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.00	no data
Power efficiency	2.05	7.29
Architecture	TeraScale 3 (2010−2013)	GCN 4.0 (2016−2020)
GPU code name	Cayman	Polaris 23
Market segment	Desktop	Laptop
Design	reference	no data
Release date	14 December 2010 (13 years ago)	13 May 2019 (5 years ago)
Launch price (MSRP)	$369	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	1536	640
Core clock speed	no data	1082 MHz
Boost clock speed	880 MHz	1218 MHz
Number of transistors	2,640 million	2,200 million
Manufacturing process technology	40 nm	14 nm
Power consumption (TDP)	550 Watt	50 Watt
Texture fill rate	84.48	48.72
Floating-point processing power	2.703 TFLOPS	1.559 TFLOPS
ROPs	32	16
TMUs	96	40

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop size	no data	large
Bus support	PCIe 2.0 x16	no data
Interface	PCIe 2.0 x16	PCIe 3.0 x8
Length	267 mm	no data
Width	2-slot	no data
Supplementary power connectors	1x 6-pin + 1x 8-pin	None

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR5	GDDR5
Maximum RAM amount	2 GB	2 GB
Memory bus width	256 Bit	64 Bit
Memory clock speed	1375 MHz	1500 MHz
Memory bandwidth	no data	48 GB/s
Shared memory	-	-

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors	2x DVI, 1x HDMI, 2x mini-DisplayPort	No outputs
Eyefinity	+	-
HDMI	+	-

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

CrossFire	+	-
FreeSync	-	+

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	DirectX® 11	12 (12_0)
Shader Model	5.0	6.4
OpenGL	4.4	4.6
OpenCL	1.2	2.0
Vulkan	-	1.2.131

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

HD 6970 7.34
+40.3%

RX 640 5.23

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

HD 6970 2831
+40.4%

RX 640 2016

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

HD 6970 3470

RX 640 3499
+0.8%

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD

35−40
+40%

−40%

Cost per frame, $

1080p

10.54

no data

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

12−14
+33.3%

9−10

−33.3%

Full HD
Medium Preset

Assassin's Creed Odyssey	18−20 −11.1%	20 +11.1%
Assassin's Creed Valhalla	10−11 +100%	5−6 −100%
Battlefield 5	21−24 +69.2%	12−14 −69.2%
Call of Duty: Modern Warfare	14−16 +36.4%	10−12 −36.4%
Cyberpunk 2077	12−14 +33.3%	9−10 −33.3%
Far Cry 5	16−18 +54.5%	10−12 −54.5%
Far Cry New Dawn	21−24 +50%	14−16 −50%
Forza Horizon 4	45−50 +53.1%	30−35 −53.1%
Hitman 3	14−16 +27.3%	10−12 −27.3%
Horizon Zero Dawn	40−45 +30.3%	30−35 −30.3%
Metro Exodus	21−24 −28.6%	27 +28.6%
Red Dead Redemption 2	20−22 −30%	26 +30%
Shadow of the Tomb Raider	24−27 +38.9%	18−20 −38.9%
Watch Dogs: Legion	50−55 +14.9%	45−50 −14.9%

Full HD
High Preset

Assassin's Creed Odyssey	18−20 +28.6%	14−16 −28.6%
Assassin's Creed Valhalla	10−11 +100%	5−6 −100%
Battlefield 5	21−24 +69.2%	12−14 −69.2%
Call of Duty: Modern Warfare	14−16 +36.4%	10−12 −36.4%
Cyberpunk 2077	12−14 +33.3%	9−10 −33.3%
Far Cry 5	16−18 +54.5%	10−12 −54.5%
Far Cry New Dawn	21−24 +50%	14−16 −50%
Forza Horizon 4	45−50 +53.1%	30−35 −53.1%
Hitman 3	14−16 +27.3%	10−12 −27.3%
Horizon Zero Dawn	40−45 +30.3%	30−35 −30.3%
Metro Exodus	21−24 +110%	10 −110%
Red Dead Redemption 2	20−22 +42.9%	14−16 −42.9%
Shadow of the Tomb Raider	24−27 +38.9%	18−20 −38.9%
The Witcher 3: Wild Hunt	21−24 +22.2%	18−20 −22.2%
Watch Dogs: Legion	50−55 +14.9%	45−50 −14.9%

Full HD
Ultra Preset

Assassin's Creed Odyssey	18−20 +28.6%	14−16 −28.6%
Assassin's Creed Valhalla	10−11 +100%	5−6 −100%
Call of Duty: Modern Warfare	14−16 +36.4%	10−12 −36.4%
Cyberpunk 2077	12−14 +33.3%	9−10 −33.3%
Far Cry 5	16−18 +54.5%	10−12 −54.5%
Forza Horizon 4	45−50 +53.1%	30−35 −53.1%
Hitman 3	14−16 +27.3%	10−12 −27.3%
Horizon Zero Dawn	40−45 +30.3%	30−35 −30.3%
Shadow of the Tomb Raider	24−27 +38.9%	18−20 −38.9%
The Witcher 3: Wild Hunt	21−24 +100%	11 −100%
Watch Dogs: Legion	50−55 +14.9%	45−50 −14.9%

Full HD
Epic Preset

Red Dead Redemption 2

20−22
+42.9%

14−16

−42.9%

1440p
High Preset

Battlefield 5	14−16 +40%	10−11 −40%
Far Cry New Dawn	10−12 +37.5%	8−9 −37.5%

1440p
Ultra Preset

Assassin's Creed Odyssey	7−8 +40%	5−6 −40%
Assassin's Creed Valhalla	3−4	0−1
Call of Duty: Modern Warfare	7−8 +75%	4−5 −75%
Cyberpunk 2077	3−4 +50%	2−3 −50%
Far Cry 5	8−9 +33.3%	6−7 −33.3%
Forza Horizon 4	27−30 +125%	12−14 −125%
Hitman 3	10−12 +22.2%	9−10 −22.2%
Horizon Zero Dawn	16−18 +45.5%	10−12 −45.5%
Metro Exodus	8−9 +167%	3−4 −167%
Shadow of the Tomb Raider	5−6 +66.7%	3−4 −66.7%
The Witcher 3: Wild Hunt	6−7 +50%	4−5 −50%
Watch Dogs: Legion	45−50 +46.9%	30−35 −46.9%

1440p
Epic Preset

Red Dead Redemption 2

12−14
+44.4%

9−10

−44.4%

4K
High Preset

Battlefield 5	6−7 +50%	4−5 −50%
Far Cry New Dawn	5−6 +66.7%	3−4 −66.7%
Hitman 3	3−4 +200%	1−2 −200%
Horizon Zero Dawn	24−27 +200%	8−9 −200%
Metro Exodus	5−6 +150%	2−3 −150%
The Witcher 3: Wild Hunt	4−5 +300%	1−2 −300%

4K
Ultra Preset

Assassin's Creed Odyssey	4−5 +33.3%	3−4 −33.3%
Assassin's Creed Valhalla	3−4 +50%	2−3 −50%
Call of Duty: Modern Warfare	3−4 +50%	2−3 −50%
Cyberpunk 2077	1−2	0−1
Far Cry 5	4−5 +33.3%	3−4 −33.3%
Forza Horizon 4	8−9 +100%	4−5 −100%
Shadow of the Tomb Raider	2−3 +100%	1−2 −100%
Watch Dogs: Legion	2−3 +100%	1−2 −100%

4K
Epic Preset

Red Dead Redemption 2

7−8
+16.7%

6−7

−16.7%

This is how HD 6970 and RX 640 compete in popular games:

HD 6970 is 40% faster in 1080p

Here's the range of performance differences observed across popular games:

in The Witcher 3: Wild Hunt, with 4K resolution and the High Preset, the HD 6970 is 300% faster.
in Red Dead Redemption 2, with 1080p resolution and the Medium Preset, the RX 640 is 30% faster.

All in all, in popular games: