Radeon HD 7990 vs Radeon RX Vega 8
In this comparison between Radeon HD 7990 and Radeon RX Vega 8 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 7990 will be the best choice, for others Radeon RX Vega 8 will be their preference. Study the comparison tables below and make your choice.
Radeon RX Vega 8 is a Laptop Graphics Card
Note: Radeon RX Vega 8 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon RX Vega 8 here:
Main Specs
Radeon HD 7990
Radeon RX Vega 8
Power consumption (TDP)
375 Watt
Interface
PCIe 3.0 x16
Supplementary power connectors
2x 8-pin
Memory type
GDDR5
Maximum RAM amount
3 GB
Display Connectors
1x DVI, 4x mini-DisplayPort
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Radeon HD 7990 is used in Desktops, and Radeon RX Vega 8 - in Laptops.
Radeon HD 7990 is build with GCN 1.0 architecture, and Radeon RX Vega 8 - with Vega.
Radeon HD 7990 is manufactured by 28 nm process technology, and Radeon RX Vega 8 - by 14 nm process technology.
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
35−40
8−9
ultra / 1080p
21−24
5−6
QHD / 1440p
16−18
0−1
4K / 2160p
10−11
−
low / 720p
60−65
18−20
medium / 1080p
40−45
10−11
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 310% more, than Radeon RX Vega 8.
high / 1080p
55−60
14−16
ultra / 1080p
45−50
12−14
QHD / 1440p
35−40
0−1
4K / 2160p
18−20
−
low / 720p
100−110
30−33
medium / 1080p
60−65
14−16
The average gaming FPS of Radeon HD 7990 in Battlefield 5 is 277% more, than Radeon RX Vega 8.
low / 768p
50−55
45−50
high / 1080p
−
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 7990 in Call of Duty: Warzone is 10% more, than Radeon RX Vega 8.
low / 768p
250−260
150−160
medium / 768p
220−230
120−130
ultra / 1080p
180−190
60−65
QHD / 1440p
110−120
35−40
4K / 2160p
70−75
27−30
high / 768p
210−220
90−95
The average gaming FPS of Radeon HD 7990 in Counter-Strike: Global Offensive is 113% more, than Radeon RX Vega 8.
low / 768p
60−65
55−60
ultra / 1080p
−
21−24
medium / 1080p
55−60
45−50
The average gaming FPS of Radeon HD 7990 in Cyberpunk 2077 is 15% more, than Radeon RX Vega 8.
low / 768p
120−130
85−90
medium / 768p
110−120
65−70
ultra / 1080p
100−110
40−45
The average gaming FPS of Radeon HD 7990 in Dota 2 is 76% more, than Radeon RX Vega 8.
high / 1080p
45−50
10−11
ultra / 1080p
40−45
9−10
QHD / 1440p
27−30
−
4K / 2160p
14−16
4−5
low / 720p
80−85
21−24
medium / 1080p
45−50
10−11
The average gaming FPS of Radeon HD 7990 in Far Cry 5 is 327% more, than Radeon RX Vega 8.
high / 1080p
60−65
16−18
ultra / 1080p
45−50
12−14
QHD / 1440p
27−30
−
4K / 2160p
27−30
−
low / 720p
180−190
65−70
medium / 1080p
110−120
27−30
The average gaming FPS of Radeon HD 7990 in Fortnite is 229% more, than Radeon RX Vega 8.
high / 1080p
60−65
14−16
ultra / 1080p
45−50
12−14
QHD / 1440p
30−35
2−3
4K / 2160p
24−27
−
low / 720p
100−110
30−35
medium / 1080p
65−70
16−18
The average gaming FPS of Radeon HD 7990 in Forza Horizon 4 is 293% more, than Radeon RX Vega 8.
low / 768p
140−150
55−60
medium / 768p
120−130
50−55
high / 1080p
70−75
14−16
ultra / 1080p
30−35
7−8
QHD / 1440p
21−24
0−1
The average gaming FPS of Radeon HD 7990 in Grand Theft Auto V is 181% more, than Radeon RX Vega 8.
high / 1080p
24−27
5−6
ultra / 1080p
20−22
4−5
QHD / 1440p
16−18
−
4K / 2160p
8−9
1−2
low / 720p
65−70
14−16
medium / 1080p
30−35
7−8
The average gaming FPS of Radeon HD 7990 in Metro Exodus is 416% more, than Radeon RX Vega 8.
low / 768p
130−140
95−100
high / 1080p
−
90−95
ultra / 1080p
−
85−90
medium / 1080p
120−130
95−100
The average gaming FPS of Radeon HD 7990 in Minecraft is 34% more, than Radeon RX Vega 8.
high / 1080p
−
18−20
ultra / 1080p
14−16
14−16
low / 720p
100−110
35−40
medium / 1080p
18−20
18−20
The average gaming FPS of Radeon HD 7990 in PLAYERUNKNOWN'S BATTLEGROUNDS is 100% more, than Radeon RX Vega 8.
high / 1080p
24−27
−
ultra / 1080p
16−18
8−9
QHD / 1440p
10−11
0−1
4K / 2160p
7−8
−
low / 720p
65−70
14−16
medium / 1080p
35−40
12−14
The average gaming FPS of Radeon HD 7990 in Red Dead Redemption 2 is 233% more, than Radeon RX Vega 8.
low / 768p
130−140
30−33
medium / 768p
85−90
20−22
high / 1080p
45−50
10−12
ultra / 1080p
24−27
7−8
4K / 2160p
16−18
6−7
The average gaming FPS of Radeon HD 7990 in The Witcher 3: Wild Hunt is 313% more, than Radeon RX Vega 8.
low / 768p
90−95
90−95
medium / 768p
60−65
45−50
ultra / 1080p
50−55
21−24
high / 768p
60−65
40−45
The average gaming FPS of Radeon HD 7990 in World of Tanks is 31% more, than Radeon RX Vega 8.
Full Specs
Radeon HD 7990
Radeon RX Vega 8
Architecture
GCN 1.0
Vega
Code name
Malta
Vega Raven Ridge
Type
Desktop
Laptop
Release date
24 April 2013
26 October 2017
Pipelines
2048
512
Core clock speed
950 MHz
Boost Clock
1000 MHz
1200 MHz
Transistor count
4,313 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
128.0
Floating-point performance
2x 4,096 gflops
Length
307 mm
Memory bus width
384 Bit
Memory clock speed
6000 MHz
Memory bandwidth
288.0 GB/s
Shared memory
-
DirectX
12 (11_1)
DirectX 12_1
Shader Model
5.1
OpenGL
4.6
OpenCL
1.2
Vulkan
1.2.131
Bitcoin / BTC (SHA256)
459 Mh/s
Ethereum / ETH (DaggerHashimoto)
44 Mh/s
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