ATI Radeon HD 4870 X2 vs HD 6790

Place in the ranking	684	732
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.86	0.15
Power efficiency	1.92	0.81
Architecture	TeraScale 2 (2009−2015)	TeraScale (2005−2013)
GPU code name	Barts	R700
Market segment	Desktop	Desktop
Release date	4 April 2011 (13 years ago)	12 August 2008 (16 years ago)
Launch price (MSRP)	$149	$550

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

HD 6790 has 473% better value for money than ATI HD 4870 X2.

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	800	800
Core clock speed	840 MHz	700 MHz
Number of transistors	1,700 million	956 million
Manufacturing process technology	40 nm	55 nm
Power consumption (TDP)	150 Watt	286 Watt
Texture fill rate	33.60	28.00
Floating-point processing power	1.344 TFLOPS	1.12 TFLOPS
ROPs	16	16
TMUs	40	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).

Interface	PCIe 2.0 x16	PCIe 2.0 x16
Length	198 mm	267 mm
Width	2-slot	2-slot
Supplementary power connectors	2x 6-pin	1x 6-pin + 1x 8-pin

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	1 GB	1 GB
Memory bus width	256 Bit	256 Bit
Memory clock speed	1050 MHz	900 MHz
Memory bandwidth	134.4 GB/s	115.2 GB/s

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, 1x DisplayPort	2x DVI, 1x S-Video
HDMI	+	-

API compatibility

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

DirectX	11.2 (11_0)	10.1 (10_1)
Shader Model	5.0	4.1
OpenGL	4.4	3.3
OpenCL	1.2	1.1
Vulkan	N/A	N/A

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 6790 4.20
+23.5%

ATI HD 4870 X2 3.40

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 6790 1618
+23.6%

ATI HD 4870 X2 1309

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:

900p	52 +30%	40−45 −30%
Full HD	60 +33.3%	45−50 −33.3%

Cost per frame, $

1080p

2.48

12.22

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

7−8
+40%

5−6

−40%

Full HD
Medium Preset

Assassin's Creed Odyssey	12−14 +33.3%	9−10 −33.3%
Assassin's Creed Valhalla	3−4 +50%	2−3 −50%
Battlefield 5	10−11 +25%	8−9 −25%
Call of Duty: Modern Warfare	9−10 +28.6%	7−8 −28.6%
Cyberpunk 2077	7−8 +40%	5−6 −40%
Far Cry 5	9−10 +28.6%	7−8 −28.6%
Far Cry New Dawn	12−14 +33.3%	9−10 −33.3%
Forza Horizon 4	24−27 +38.9%	18−20 −38.9%
Hitman 3	10−11 +25%	8−9 −25%
Horizon Zero Dawn	27−30 +33.3%	21−24 −33.3%
Metro Exodus	8−9 +33.3%	6−7 −33.3%
Red Dead Redemption 2	10−12 +37.5%	8−9 −37.5%
Shadow of the Tomb Raider	16−18 +33.3%	12−14 −33.3%
Watch Dogs: Legion	40−45 +43.3%	30−33 −43.3%

Full HD
High Preset

Assassin's Creed Odyssey	12−14 +33.3%	9−10 −33.3%
Assassin's Creed Valhalla	3−4 +50%	2−3 −50%
Battlefield 5	10−11 +25%	8−9 −25%
Call of Duty: Modern Warfare	9−10 +28.6%	7−8 −28.6%
Cyberpunk 2077	7−8 +40%	5−6 −40%
Far Cry 5	9−10 +28.6%	7−8 −28.6%
Far Cry New Dawn	12−14 +33.3%	9−10 −33.3%
Forza Horizon 4	24−27 +38.9%	18−20 −38.9%
Hitman 3	10−11 +25%	8−9 −25%
Horizon Zero Dawn	27−30 +33.3%	21−24 −33.3%
Metro Exodus	8−9 +33.3%	6−7 −33.3%
Red Dead Redemption 2	10−12 +37.5%	8−9 −37.5%
Shadow of the Tomb Raider	16−18 +33.3%	12−14 −33.3%
The Witcher 3: Wild Hunt	16−18 +33.3%	12−14 −33.3%
Watch Dogs: Legion	40−45 +43.3%	30−33 −43.3%

Full HD
Ultra Preset

Assassin's Creed Odyssey	12−14 +33.3%	9−10 −33.3%
Assassin's Creed Valhalla	3−4 +50%	2−3 −50%
Call of Duty: Modern Warfare	9−10 +28.6%	7−8 −28.6%
Cyberpunk 2077	7−8 +40%	5−6 −40%
Far Cry 5	9−10 +28.6%	7−8 −28.6%
Forza Horizon 4	24−27 +38.9%	18−20 −38.9%
Hitman 3	10−11 +25%	8−9 −25%
Horizon Zero Dawn	27−30 +33.3%	21−24 −33.3%
Shadow of the Tomb Raider	16−18 +33.3%	12−14 −33.3%
The Witcher 3: Wild Hunt	16−18 +33.3%	12−14 −33.3%
Watch Dogs: Legion	40−45 +43.3%	30−33 −43.3%

Full HD
Epic Preset

Red Dead Redemption 2

10−12

+37.5%

8−9
−37.5%

1440p
High Preset

Battlefield 5	8−9 +33.3%	6−7 −33.3%
Far Cry New Dawn	6−7 +50%	4−5 −50%

1440p
Ultra Preset

Assassin's Creed Odyssey	4−5 +33.3%	3−4 −33.3%
Call of Duty: Modern Warfare	3−4 +50%	2−3 −50%
Cyberpunk 2077	2−3 +100%	1−2 −100%
Far Cry 5	5−6 +25%	4−5 −25%
Forza Horizon 4	6−7 +50%	4−5 −50%
Hitman 3	9−10 +28.6%	7−8 −28.6%
Horizon Zero Dawn	10−11 +25%	8−9 −25%
Metro Exodus	0−1	0−1
The Witcher 3: Wild Hunt	3−4 +50%	2−3 −50%
Watch Dogs: Legion	24−27 +23.8%	21−24 −23.8%

1440p
Epic Preset

Red Dead Redemption 2

8−9
+33.3%

6−7

−33.3%

4K
High Preset

Battlefield 5	3−4 +50%	2−3 −50%
Far Cry New Dawn	3−4 +50%	2−3 −50%
Hitman 3	0−1	0−1
Horizon Zero Dawn	1−2	0−1
Metro Exodus	1−2	0−1

4K
Ultra Preset

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

4K
Epic Preset

Red Dead Redemption 2

5−6
+25%

4−5

−25%

This is how HD 6790 and ATI HD 4870 X2 compete in popular games:

HD 6790 is 30% faster in 900p
HD 6790 is 33% faster in 1080p

Pros & cons summary

Performance score	4.20	3.40
Recency	4 April 2011	12 August 2008
Chip lithography	40 nm	55 nm
Power consumption (TDP)	150 Watt	286 Watt

HD 6790 has a 23.5% higher aggregate performance score, an age advantage of 2 years, a 37.5% more advanced lithography process, and 90.7% lower power consumption.

The Radeon HD 6790 is our recommended choice as it beats the Radeon HD 4870 X2 in performance tests.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.