Radeon HD 6790 vs Radeon HD 6850 X2
If you are going to buy a new graphics card and are choosing between Radeon HD 6790 and Radeon HD 6850 X2, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon HD 6790 stacks up against Radeon HD 6850 X2, check out specs charts below.
Radeon HD 6850 X2
Main Specs
Radeon HD 6790
Radeon HD 6850 X2
Power consumption (TDP)
150 Watt
254 Watt
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
2x 8-pin
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x HDMI, 1x DisplayPort
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Radeon HD 6850 X2 has 69% more power consumption, than Radeon HD 6790.
Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
Radeon HD 6850 X2 has 1 GB more memory, than Radeon HD 6790.
Both cards are used in Desktops.
Radeon HD 6790 is build with Terascale 2 architecture, and Radeon HD 6850 X2 - with TeraScale 2.
Core clock speed of Radeon HD 6790 is 40 MHz higher, than Radeon HD 6850 X2.
Radeon HD 6790 and Radeon HD 6850 X2 are manufactured by 40 nm process technology.
Memory clock speed of Radeon HD 6850 X2 is 3150 MHz higher, than Radeon HD 6790.
Game benchmarks
Assassin's Creed Odyssey
Battlefield 5
Call of Duty: Warzone
Counter-Strike: Global Offensive
Cyberpunk 2077
Dota 2
Far Cry 5
Fortnite
Forza Horizon 4
Grand Theft Auto V
Metro Exodus
Minecraft
PLAYERUNKNOWN'S BATTLEGROUNDS
Red Dead Redemption 2
The Witcher 3: Wild Hunt
World of Tanks
high / 1080p
7−8
12−14
ultra / 1080p
4−5
7−8
QHD / 1440p
0−1
2−3
low / 720p
18−20
27−30
medium / 1080p
9−10
16−18
The average gaming FPS of Radeon HD 6850 X2 in Assassin's Creed Odyssey is 60% more, than Radeon HD 6790.
high / 1080p
12−14
21−24
ultra / 1080p
10−12
18−20
QHD / 1440p
0−1
4−5
low / 720p
27−30
45−50
medium / 1080p
14−16
21−24
The average gaming FPS of Radeon HD 6850 X2 in Battlefield 5 is 68% more, than Radeon HD 6790.
low / 768p
45−50
45−50
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
Radeon HD 6790 and Radeon HD 6850 X2 have the same average FPS in Call of Duty: Warzone.
low / 768p
140−150
190−200
medium / 768p
120−130
160−170
ultra / 1080p
60−65
85−90
QHD / 1440p
30−35
45−50
4K / 2160p
27−30
30−33
high / 768p
90−95
120−130
The average gaming FPS of Radeon HD 6850 X2 in Counter-Strike: Global Offensive is 33% more, than Radeon HD 6790.
low / 768p
55−60
55−60
ultra / 1080p
21−24
35−40
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 6850 X2 in Cyberpunk 2077 is 11% more, than Radeon HD 6790.
low / 768p
85−90
100−110
medium / 768p
65−70
85−90
ultra / 1080p
35−40
55−60
The average gaming FPS of Radeon HD 6850 X2 in Dota 2 is 29% more, than Radeon HD 6790.
high / 1080p
9−10
14−16
ultra / 1080p
8−9
14−16
4K / 2160p
4−5
5−6
low / 720p
21−24
30−35
medium / 1080p
10−11
16−18
The average gaming FPS of Radeon HD 6850 X2 in Far Cry 5 is 54% more, than Radeon HD 6790.
high / 1080p
16−18
21−24
ultra / 1080p
10−12
16−18
QHD / 1440p
−
16−18
low / 720p
65−70
85−90
medium / 1080p
27−30
45−50
The average gaming FPS of Radeon HD 6850 X2 in Fortnite is 38% more, than Radeon HD 6790.
high / 1080p
14−16
21−24
ultra / 1080p
12−14
16−18
QHD / 1440p
2−3
7−8
low / 720p
27−30
45−50
medium / 1080p
16−18
24−27
The average gaming FPS of Radeon HD 6850 X2 in Forza Horizon 4 is 60% more, than Radeon HD 6790.
low / 768p
55−60
75−80
medium / 768p
50−55
65−70
high / 1080p
14−16
24−27
ultra / 1080p
7−8
10−11
QHD / 1440p
0−1
1−2
The average gaming FPS of Radeon HD 6850 X2 in Grand Theft Auto V is 36% more, than Radeon HD 6790.
high / 1080p
5−6
8−9
ultra / 1080p
4−5
6−7
4K / 2160p
0−1
2−3
low / 720p
14−16
24−27
medium / 1080p
7−8
10−12
The average gaming FPS of Radeon HD 6850 X2 in Metro Exodus is 50% more, than Radeon HD 6790.
low / 768p
95−100
100−110
high / 1080p
90−95
−
ultra / 1080p
85−90
95−100
medium / 1080p
95−100
100−110
The average gaming FPS of Radeon HD 6850 X2 in Minecraft is 8% more, than Radeon HD 6790.
high / 1080p
16−18
21−24
ultra / 1080p
14−16
16−18
low / 720p
35−40
50−55
medium / 1080p
18−20
21−24
The average gaming FPS of Radeon HD 6850 X2 in PLAYERUNKNOWN'S BATTLEGROUNDS is 27% more, than Radeon HD 6790.
high / 1080p
−
12−14
ultra / 1080p
8−9
9−10
QHD / 1440p
0−1
0−1
low / 720p
14−16
24−27
medium / 1080p
10−12
14−16
The average gaming FPS of Radeon HD 6850 X2 in Red Dead Redemption 2 is 45% more, than Radeon HD 6790.
low / 768p
27−30
45−50
medium / 768p
18−20
27−30
high / 1080p
10−11
16−18
ultra / 1080p
7−8
9−10
4K / 2160p
6−7
7−8
The average gaming FPS of Radeon HD 6850 X2 in The Witcher 3: Wild Hunt is 57% more, than Radeon HD 6790.
low / 768p
85−90
95−100
medium / 768p
45−50
55−60
ultra / 1080p
21−24
30−35
high / 768p
40−45
50−55
The average gaming FPS of Radeon HD 6850 X2 in World of Tanks is 20% more, than Radeon HD 6790.
Full Specs
Radeon HD 6790
Radeon HD 6850 X2
Architecture
Terascale 2
TeraScale 2
Code name
Barts
Barts
Type
Desktop
Desktop
Release date
4 April 2011
19 September 2011
Pipelines
800
960
Core clock speed
840 MHz
800 MHz
Transistor count
1,700 million
1,700 million
Manufacturing process technology
40 nm
40 nm
Texture fill rate
33.60
38.40
Floating-point performance
1,344.0 gflops
2x 1,536.0 gflops
Length
198 mm
Memory bus width
256 Bit
256 Bit
Memory clock speed
1050 MHz
4200 MHz
Memory bandwidth
134.4 GB/s
134.4 GB/s
DirectX
11.2 (11_0)
11.2 (11_0)
Shader Model
5.0
5.0
OpenGL
4.4
4.4
OpenCL
1.2
1.2
Vulkan
N/A
N/A
Bitcoin / BTC (SHA256)
122 Mh/s
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