Radeon 550X vs Radeon HD 6990
If you are going to buy a new graphics card and are choosing between Radeon 550X and Radeon HD 6990, 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 550X stacks up against Radeon HD 6990, check out specs charts below.
Radeon 550X
Main Specs
Radeon 550X
Radeon HD 6990
Power consumption (TDP)
50 Watt
375 Watt
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
None
2x 8-pin
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 4x mini-DisplayPort
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Radeon HD 6990 has 650% more power consumption, than Radeon 550X.
Radeon 550X is connected by PCIe 3.0 x8, and Radeon HD 6990 uses PCIe 2.0 x16 interface.
Radeon 550X and Radeon HD 6990 have maximum RAM of 2 GB.
Both cards are used in Desktops.
Radeon 550X is build with GCN 4.0 architecture, and Radeon HD 6990 - with TeraScale 3.
Core clock speed of Radeon 550X is 252 MHz higher, than Radeon HD 6990.
Radeon 550X is manufactured by 14 nm process technology, and Radeon HD 6990 - by 40 nm process technology.
Radeon HD 6990 is 150 mm longer, than Radeon 550X.
Memory clock speed of Radeon 550X is 2000 MHz higher, than Radeon HD 6990.
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
14−16
ultra / 1080p
4−5
9−10
QHD / 1440p
0−1
3−4
low / 720p
16−18
30−35
medium / 1080p
9−10
18−20
The average gaming FPS of Radeon HD 6990 in Assassin's Creed Odyssey is 111% more, than Radeon 550X.
high / 1080p
12−14
24−27
ultra / 1080p
10−12
21−24
QHD / 1440p
0−1
7−8
4K / 2160p
−
5−6
low / 720p
24−27
50−55
medium / 1080p
12−14
27−30
The average gaming FPS of Radeon HD 6990 in Battlefield 5 is 113% more, than Radeon 550X.
low / 768p
45−50
45−50
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
Radeon 550X and Radeon HD 6990 have the same average FPS in Call of Duty: Warzone.
low / 768p
140−150
210−220
medium / 768p
110−120
170−180
ultra / 1080p
55−60
95−100
QHD / 1440p
30−35
50−55
4K / 2160p
27−30
30−33
high / 768p
85−90
140−150
The average gaming FPS of Radeon HD 6990 in Counter-Strike: Global Offensive is 54% more, than Radeon 550X.
low / 768p
55−60
55−60
ultra / 1080p
20−22
40−45
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 6990 in Cyberpunk 2077 is 16% more, than Radeon 550X.
low / 768p
80−85
110−120
medium / 768p
60−65
90−95
ultra / 1080p
35−40
60−65
The average gaming FPS of Radeon HD 6990 in Dota 2 is 50% more, than Radeon 550X.
high / 1080p
8−9
18−20
ultra / 1080p
8−9
16−18
4K / 2160p
4−5
6−7
low / 720p
20−22
35−40
medium / 1080p
9−10
18−20
The average gaming FPS of Radeon HD 6990 in Far Cry 5 is 90% more, than Radeon 550X.
high / 1080p
14−16
24−27
ultra / 1080p
10−12
18−20
QHD / 1440p
−
16−18
low / 720p
60−65
95−100
medium / 1080p
24−27
50−55
The average gaming FPS of Radeon HD 6990 in Fortnite is 71% more, than Radeon 550X.
high / 1080p
12−14
24−27
ultra / 1080p
10−12
20−22
QHD / 1440p
1−2
9−10
low / 720p
27−30
50−55
medium / 1080p
14−16
27−30
The average gaming FPS of Radeon HD 6990 in Forza Horizon 4 is 107% more, than Radeon 550X.
low / 768p
55−60
85−90
medium / 768p
45−50
75−80
high / 1080p
12−14
30−33
ultra / 1080p
6−7
12−14
QHD / 1440p
0−1
3−4
The average gaming FPS of Radeon HD 6990 in Grand Theft Auto V is 67% more, than Radeon 550X.
high / 1080p
5−6
9−10
ultra / 1080p
3−4
7−8
4K / 2160p
0−1
2−3
low / 720p
12−14
27−30
medium / 1080p
7−8
12−14
The average gaming FPS of Radeon HD 6990 in Metro Exodus is 100% more, than Radeon 550X.
low / 768p
95−100
110−120
high / 1080p
90−95
−
ultra / 1080p
80−85
100−110
medium / 1080p
90−95
100−110
The average gaming FPS of Radeon HD 6990 in Minecraft is 20% more, than Radeon 550X.
high / 1080p
16−18
21−24
ultra / 1080p
14−16
18−20
low / 720p
30−35
55−60
medium / 1080p
18−20
24−27
The average gaming FPS of Radeon HD 6990 in PLAYERUNKNOWN'S BATTLEGROUNDS is 55% more, than Radeon 550X.
high / 1080p
−
14−16
ultra / 1080p
7−8
9−10
QHD / 1440p
0−1
0−1
low / 720p
12−14
27−30
medium / 1080p
10−12
16−18
The average gaming FPS of Radeon HD 6990 in Red Dead Redemption 2 is 80% more, than Radeon 550X.
low / 768p
24−27
55−60
medium / 768p
16−18
30−35
high / 1080p
10−11
18−20
ultra / 1080p
6−7
10−12
4K / 2160p
6−7
8−9
The average gaming FPS of Radeon HD 6990 in The Witcher 3: Wild Hunt is 92% more, than Radeon 550X.
low / 768p
85−90
100−110
medium / 768p
45−50
60−65
ultra / 1080p
20−22
35−40
high / 768p
35−40
50−55
The average gaming FPS of Radeon HD 6990 in World of Tanks is 33% more, than Radeon 550X.
Full Specs
Radeon 550X
Radeon HD 6990
Architecture
GCN 4.0
TeraScale 3
Code name
Lexa
Antilles
Type
Desktop
Desktop
Release date
27 March 2019
8 March 2011
Pipelines
512
1536
Core clock speed
1082 MHz
830 MHz
Boost Clock
1218 MHz
Transistor count
2,200 million
2,640 million
Manufacturing process technology
14 nm
40 nm
Texture fill rate
38.98
79.68
Floating-point performance
2x 2,549.8 gflops
Length
145 mm
295 mm
Memory bus width
128 Bit
256 Bit
Memory clock speed
7000 MHz
5000 MHz
Memory bandwidth
112.0 GB/s
160.0 GB/s
DirectX
12 (12_0)
11.2 (11_0)
Shader Model
6.4
5.0
OpenGL
4.6
4.4
OpenCL
2.0
1.2
Vulkan
1.2.131
N/A
Bitcoin / BTC (SHA256)
265 Mh/s
Ethereum / ETH (DaggerHashimoto)
24 Mh/s
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