Radeon HD 6770 vs Radeon HD 7990
In this comparison between Radeon HD 6770 and Radeon HD 7990 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Radeon HD 6770 will be the best choice, for others Radeon HD 7990 will be their preference. Study the comparison tables below and make your choice.
Main Specs
Radeon HD 6770
Radeon HD 7990
Power consumption (TDP)
108 Watt
375 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
2x 8-pin
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
3 GB
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 4x mini-DisplayPort
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Radeon HD 7990 has 247% more power consumption, than Radeon HD 6770.
Radeon HD 6770 is connected by PCIe 2.0 x16, and Radeon HD 7990 uses PCIe 3.0 x16 interface.
Radeon HD 7990 has 2 GB more memory, than Radeon HD 6770.
Both cards are used in Desktops.
Radeon HD 6770 is build with TeraScale 2 architecture, and Radeon HD 7990 - with GCN 1.0.
Radeon HD 6770 is manufactured by 40 nm process technology, and Radeon HD 7990 - by 28 nm process technology.
Radeon HD 7990 is 109 mm longer, than Radeon HD 6770.
Memory clock speed of Radeon HD 7990 is 4950 MHz higher, than Radeon HD 6770.
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
3−4
35−40
ultra / 1080p
1−2
21−24
QHD / 1440p
0−1
16−18
4K / 2160p
−
10−11
low / 720p
14−16
60−65
medium / 1080p
5−6
40−45
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 583% more, than Radeon HD 6770.
high / 1080p
7−8
55−60
ultra / 1080p
6−7
45−50
QHD / 1440p
0−1
35−40
4K / 2160p
−
18−20
low / 720p
20−22
100−110
medium / 1080p
8−9
60−65
The average gaming FPS of Radeon HD 7990 in Battlefield 5 is 580% more, than Radeon HD 6770.
low / 768p
45−50
50−55
high / 1080p
40−45
−
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 7990 in Call of Duty: Warzone is 10% more, than Radeon HD 6770.
low / 768p
120−130
250−260
medium / 768p
95−100
220−230
ultra / 1080p
45−50
180−190
QHD / 1440p
24−27
110−120
4K / 2160p
−
70−75
high / 768p
70−75
210−220
The average gaming FPS of Radeon HD 7990 in Counter-Strike: Global Offensive is 172% more, than Radeon HD 6770.
low / 768p
70−75
60−65
ultra / 1080p
20−22
−
medium / 1080p
40−45
55−60
The average gaming FPS of Radeon HD 7990 in Cyberpunk 2077 is 5% more, than Radeon HD 6770.
low / 768p
75−80
120−130
medium / 768p
55−60
110−120
ultra / 1080p
27−30
100−110
The average gaming FPS of Radeon HD 7990 in Dota 2 is 112% more, than Radeon HD 6770.
high / 1080p
4−5
45−50
ultra / 1080p
3−4
40−45
QHD / 1440p
−
27−30
4K / 2160p
1−2
14−16
low / 720p
14−16
80−85
medium / 1080p
5−6
45−50
The average gaming FPS of Radeon HD 7990 in Far Cry 5 is 683% more, than Radeon HD 6770.
high / 1080p
12−14
60−65
ultra / 1080p
7−8
45−50
QHD / 1440p
4−5
27−30
4K / 2160p
−
27−30
low / 720p
55−60
180−190
medium / 1080p
16−18
110−120
The average gaming FPS of Radeon HD 7990 in Fortnite is 357% more, than Radeon HD 6770.
high / 1080p
7−8
60−65
ultra / 1080p
6−7
45−50
QHD / 1440p
0−1
30−35
4K / 2160p
−
24−27
low / 720p
21−24
100−110
medium / 1080p
9−10
65−70
The average gaming FPS of Radeon HD 7990 in Forza Horizon 4 is 536% more, than Radeon HD 6770.
low / 768p
45−50
140−150
medium / 768p
−
120−130
high / 1080p
9−10
70−75
ultra / 1080p
4−5
30−35
QHD / 1440p
0−1
21−24
medium / 720p
40−45
−
The average gaming FPS of Radeon HD 7990 in Grand Theft Auto V is 315% more, than Radeon HD 6770.
high / 1080p
2−3
24−27
ultra / 1080p
0−1
20−22
QHD / 1440p
−
16−18
4K / 2160p
0−1
8−9
low / 720p
8−9
65−70
medium / 1080p
4−5
30−35
The average gaming FPS of Radeon HD 7990 in Metro Exodus is 720% more, than Radeon HD 6770.
low / 768p
85−90
130−140
high / 1080p
65−70
−
medium / 1080p
−
120−130
The average gaming FPS of Radeon HD 7990 in Minecraft is 55% more, than Radeon HD 6770.
ultra / 1080p
12−14
14−16
low / 720p
27−30
100−110
medium / 1080p
14−16
18−20
The average gaming FPS of Radeon HD 7990 in PLAYERUNKNOWN'S BATTLEGROUNDS is 155% more, than Radeon HD 6770.
high / 1080p
6−7
24−27
ultra / 1080p
4−5
16−18
QHD / 1440p
0−1
10−11
4K / 2160p
−
7−8
low / 720p
7−8
65−70
medium / 1080p
−
35−40
The average gaming FPS of Radeon HD 7990 in Red Dead Redemption 2 is 500% more, than Radeon HD 6770.
low / 768p
18−20
130−140
medium / 768p
12−14
85−90
high / 1080p
6−7
45−50
ultra / 1080p
4−5
24−27
4K / 2160p
1−2
16−18
The average gaming FPS of Radeon HD 7990 in The Witcher 3: Wild Hunt is 675% more, than Radeon HD 6770.
low / 768p
70−75
90−95
medium / 768p
35−40
60−65
ultra / 1080p
16−18
50−55
high / 768p
30−35
60−65
The average gaming FPS of Radeon HD 7990 in World of Tanks is 71% more, than Radeon HD 6770.
Full Specs
Radeon HD 6770
Radeon HD 7990
Architecture
TeraScale 2
GCN 1.0
Code name
Juniper
Malta
Type
Desktop
Desktop
Release date
21 January 2011
24 April 2013
Pipelines
800
2048
Core clock speed
950 MHz
Boost Clock
900 MHz
1000 MHz
Transistor count
1,040 million
4,313 million
Manufacturing process technology
40 nm
28 nm
Texture fill rate
34.00
128.0
Floating-point performance
1,360.0 gflops
2x 4,096 gflops
Length
198 mm
307 mm
Memory bus width
128 Bit
384 Bit
Memory clock speed
1050 MHz
6000 MHz
Memory bandwidth
76.8 GB/s
288.0 GB/s
DirectX
12 (11_1)
Shader Model
5.0
5.1
OpenGL
4.4
4.6
OpenCL
1.2
1.2
Vulkan
1.2.131
Bus support
PCIe 2.0 x16
HDMI
+
Bitcoin / BTC (SHA256)
118 Mh/s
459 Mh/s
Eyefinity
+
Design
reference
CrossFire
+
Ethereum / ETH (DaggerHashimoto)
44 Mh/s
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