Radeon HD 6790 vs Radeon HD 7870
If you are going to buy a new graphics card and are choosing between Radeon HD 6790 and Radeon HD 7870, 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 7870, check out specs charts below.
Main Specs
Radeon HD 6790
Radeon HD 7870
Power consumption (TDP)
150 Watt
175 Watt
Interface
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
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Radeon HD 7870 has 16% more power consumption, than Radeon HD 6790.
Radeon HD 7870 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 7870 - with GCN.
Core clock speed of Radeon HD 7870 is 160 MHz higher, than Radeon HD 6790.
Radeon HD 6790 is manufactured by 40 nm process technology, and Radeon HD 7870 - by 28 nm process technology.
Memory clock speed of Radeon HD 7870 is 3750 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
24−27
ultra / 1080p
4−5
14−16
QHD / 1440p
0−1
9−10
4K / 2160p
−
6−7
low / 720p
18−20
45−50
medium / 1080p
9−10
30−33
The average gaming FPS of Radeon HD 7870 in Assassin's Creed Odyssey is 190% more, than Radeon HD 6790.
high / 1080p
12−14
35−40
ultra / 1080p
10−12
30−35
QHD / 1440p
0−1
16−18
4K / 2160p
−
10−11
low / 720p
27−30
75−80
medium / 1080p
14−16
40−45
The average gaming FPS of Radeon HD 7870 in Battlefield 5 is 193% more, than Radeon HD 6790.
low / 768p
45−50
50−55
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 7870 in Call of Duty: Warzone is 10% more, than Radeon HD 6790.
low / 768p
140−150
240−250
medium / 768p
120−130
210−220
ultra / 1080p
60−65
130−140
QHD / 1440p
30−35
100−110
4K / 2160p
27−30
60−65
high / 768p
90−95
180−190
The average gaming FPS of Radeon HD 7870 in Counter-Strike: Global Offensive is 93% more, than Radeon HD 6790.
low / 768p
55−60
60−65
ultra / 1080p
21−24
−
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon HD 7870 in Cyberpunk 2077 is 15% more, than Radeon HD 6790.
low / 768p
85−90
120−130
medium / 768p
65−70
110−120
ultra / 1080p
35−40
85−90
The average gaming FPS of Radeon HD 7870 in Dota 2 is 70% more, than Radeon HD 6790.
high / 1080p
9−10
30−33
ultra / 1080p
8−9
27−30
QHD / 1440p
−
21−24
4K / 2160p
4−5
9−10
low / 720p
21−24
60−65
medium / 1080p
10−11
30−35
The average gaming FPS of Radeon HD 7870 in Far Cry 5 is 190% more, than Radeon HD 6790.
high / 1080p
16−18
35−40
ultra / 1080p
10−12
30−33
QHD / 1440p
−
18−20
low / 720p
65−70
130−140
medium / 1080p
27−30
80−85
The average gaming FPS of Radeon HD 7870 in Fortnite is 129% more, than Radeon HD 6790.
high / 1080p
14−16
40−45
ultra / 1080p
12−14
30−33
QHD / 1440p
2−3
18−20
4K / 2160p
−
14−16
low / 720p
27−30
75−80
medium / 1080p
16−18
45−50
The average gaming FPS of Radeon HD 7870 in Forza Horizon 4 is 186% more, than Radeon HD 6790.
low / 768p
55−60
110−120
medium / 768p
50−55
100−110
high / 1080p
14−16
45−50
ultra / 1080p
7−8
20−22
QHD / 1440p
0−1
10−11
The average gaming FPS of Radeon HD 7870 in Grand Theft Auto V is 118% more, than Radeon HD 6790.
high / 1080p
5−6
14−16
ultra / 1080p
4−5
12−14
QHD / 1440p
−
10−12
4K / 2160p
0−1
4−5
low / 720p
14−16
45−50
medium / 1080p
7−8
21−24
The average gaming FPS of Radeon HD 7870 in Metro Exodus is 200% more, than Radeon HD 6790.
low / 768p
95−100
120−130
high / 1080p
90−95
−
ultra / 1080p
85−90
−
medium / 1080p
95−100
110−120
The average gaming FPS of Radeon HD 7870 in Minecraft is 23% more, than Radeon HD 6790.
high / 1080p
16−18
−
ultra / 1080p
14−16
14−16
low / 720p
35−40
75−80
medium / 1080p
18−20
18−20
The average gaming FPS of Radeon HD 7870 in PLAYERUNKNOWN'S BATTLEGROUNDS is 60% more, than Radeon HD 6790.
high / 1080p
−
16−18
ultra / 1080p
8−9
10−12
QHD / 1440p
0−1
4−5
4K / 2160p
−
2−3
low / 720p
14−16
45−50
medium / 1080p
10−12
24−27
The average gaming FPS of Radeon HD 7870 in Red Dead Redemption 2 is 154% more, than Radeon HD 6790.
low / 768p
27−30
85−90
medium / 768p
18−20
50−55
high / 1080p
10−11
30−33
ultra / 1080p
7−8
16−18
4K / 2160p
6−7
10−11
The average gaming FPS of Radeon HD 7870 in The Witcher 3: Wild Hunt is 178% more, than Radeon HD 6790.
low / 768p
85−90
90−95
medium / 768p
45−50
60−65
ultra / 1080p
21−24
45−50
high / 768p
40−45
55−60
The average gaming FPS of Radeon HD 7870 in World of Tanks is 30% more, than Radeon HD 6790.
Full Specs
Radeon HD 6790
Radeon HD 7870
Architecture
Terascale 2
GCN
Code name
Barts
Pitcairn XT
Type
Desktop
Desktop
Release date
4 April 2011
5 March 2012
Pipelines
800
1280
Core clock speed
840 MHz
1000 MHz
Transistor count
1,700 million
2800 Million
Manufacturing process technology
40 nm
28 nm
Texture fill rate
33.60
Floating-point performance
1,344.0 gflops
Length
198 mm
Memory bus width
256 Bit
256 Bit
Memory clock speed
1050 MHz
4800 MHz
Memory bandwidth
134.4 GB/s
Shared memory
-
DirectX
11.2 (11_0)
DirectX 11.1, Shader 5.1
Shader Model
5.0
OpenGL
4.4
OpenCL
1.2
Vulkan
N/A
Monero / XMR (CryptoNight)
0.39 kh/s
Bitcoin / BTC (SHA256)
122 Mh/s
Eyefinity
+
Decred / DCR (Decred)
0.63 Gh/s
Ethereum / ETH (DaggerHashimoto)
16.6 Mh/s
Zcash / ZEC (Equihash)
145 Sol/s
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