Radeon HD 6990 vs Radeon RX 550X
When choosing between Radeon HD 6990 and Radeon RX 550X, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Radeon HD 6990 and Radeon RX 550X.
Radeon RX 550X
Main Specs
Radeon HD 6990
Radeon RX 550X
Power consumption (TDP)
375 Watt
50 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
2x 8-pin
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Display Connectors
1x DVI, 4x mini-DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
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Radeon HD 6990 has 650% more power consumption, than Radeon RX 550X.
Radeon HD 6990 is connected by PCIe 2.0 x16, and Radeon RX 550X uses PCIe 3.0 x8 interface.
Radeon RX 550X has 2 GB more memory, than Radeon HD 6990.
Both cards are used in Desktops.
Radeon HD 6990 is build with TeraScale 3 architecture, and Radeon RX 550X - with GCN 4.0.
Core clock speed of Radeon RX 550X is 270 MHz higher, than Radeon HD 6990.
Radeon HD 6990 is manufactured by 40 nm process technology, and Radeon RX 550X - by 14 nm process technology.
Radeon HD 6990 is 150 mm longer, than Radeon RX 550X.
Memory clock speed of Radeon RX 550X is 1000 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
14−16
10−11
ultra / 1080p
9−10
6−7
QHD / 1440p
3−4
0−1
low / 720p
30−35
21−24
medium / 1080p
18−20
12−14
The average gaming FPS of Radeon HD 6990 in Assassin's Creed Odyssey is 46% more, than Radeon RX 550X.
high / 1080p
24−27
16−18
ultra / 1080p
21−24
14−16
QHD / 1440p
7−8
0−1
4K / 2160p
5−6
−
low / 720p
50−55
35−40
medium / 1080p
27−30
18−20
The average gaming FPS of Radeon HD 6990 in Battlefield 5 is 45% more, than Radeon RX 550X.
low / 768p
45−50
45−50
QHD / 1440p
0−1
0−1
Radeon HD 6990 and Radeon RX 550X have the same average FPS in Call of Duty: Warzone.
low / 768p
210−220
170−180
medium / 768p
170−180
140−150
ultra / 1080p
95−100
70−75
QHD / 1440p
50−55
40−45
4K / 2160p
30−33
30−33
high / 768p
140−150
100−110
The average gaming FPS of Radeon HD 6990 in Counter-Strike: Global Offensive is 25% more, than Radeon RX 550X.
low / 768p
55−60
55−60
ultra / 1080p
40−45
27−30
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 6990 in Cyberpunk 2077 is 11% more, than Radeon RX 550X.
low / 768p
110−120
90−95
medium / 768p
90−95
75−80
ultra / 1080p
60−65
45−50
The average gaming FPS of Radeon HD 6990 in Dota 2 is 25% more, than Radeon RX 550X.
high / 1080p
18−20
12−14
ultra / 1080p
16−18
10−12
4K / 2160p
6−7
4−5
low / 720p
35−40
27−30
medium / 1080p
18−20
12−14
The average gaming FPS of Radeon HD 6990 in Far Cry 5 is 35% more, than Radeon RX 550X.
high / 1080p
24−27
18−20
ultra / 1080p
18−20
14−16
QHD / 1440p
16−18
−
low / 720p
95−100
75−80
medium / 1080p
50−55
35−40
The average gaming FPS of Radeon HD 6990 in Fortnite is 29% more, than Radeon RX 550X.
high / 1080p
24−27
16−18
ultra / 1080p
20−22
14−16
QHD / 1440p
9−10
4−5
low / 720p
50−55
35−40
medium / 1080p
27−30
20−22
The average gaming FPS of Radeon HD 6990 in Forza Horizon 4 is 42% more, than Radeon RX 550X.
low / 768p
85−90
65−70
medium / 768p
75−80
55−60
high / 1080p
30−33
18−20
ultra / 1080p
12−14
8−9
QHD / 1440p
3−4
0−1
The average gaming FPS of Radeon HD 6990 in Grand Theft Auto V is 36% more, than Radeon RX 550X.
high / 1080p
9−10
6−7
ultra / 1080p
7−8
5−6
4K / 2160p
2−3
1−2
low / 720p
27−30
18−20
medium / 1080p
12−14
9−10
The average gaming FPS of Radeon HD 6990 in Metro Exodus is 50% more, than Radeon RX 550X.
low / 768p
110−120
100−110
ultra / 1080p
100−110
90−95
medium / 1080p
100−110
95−100
The average gaming FPS of Radeon HD 6990 in Minecraft is 10% more, than Radeon RX 550X.
high / 1080p
21−24
18−20
ultra / 1080p
18−20
14−16
low / 720p
55−60
40−45
medium / 1080p
24−27
20−22
The average gaming FPS of Radeon HD 6990 in PLAYERUNKNOWN'S BATTLEGROUNDS is 29% more, than Radeon RX 550X.
high / 1080p
14−16
12−14
ultra / 1080p
9−10
8−9
QHD / 1440p
0−1
0−1
low / 720p
27−30
18−20
medium / 1080p
16−18
12−14
The average gaming FPS of Radeon HD 6990 in Red Dead Redemption 2 is 30% more, than Radeon RX 550X.
low / 768p
55−60
35−40
medium / 768p
30−35
21−24
high / 1080p
18−20
12−14
ultra / 1080p
10−12
8−9
4K / 2160p
8−9
7−8
The average gaming FPS of Radeon HD 6990 in The Witcher 3: Wild Hunt is 47% more, than Radeon RX 550X.
low / 768p
100−110
90−95
medium / 768p
60−65
50−55
ultra / 1080p
35−40
24−27
high / 768p
50−55
45−50
The average gaming FPS of Radeon HD 6990 in World of Tanks is 18% more, than Radeon RX 550X.
Full Specs
Radeon HD 6990
Radeon RX 550X
Architecture
TeraScale 3
GCN 4.0
Code name
Antilles
Lexa
Type
Desktop
Desktop
Release date
8 March 2011
16 December 2018
Pipelines
1536
512
Core clock speed
830 MHz
1100 MHz
Boost Clock
1183 MHz
Transistor count
2,640 million
2,200 million
Manufacturing process technology
40 nm
14 nm
Texture fill rate
79.68
37.86
Floating-point performance
2x 2,549.8 gflops
1,211 gflops
Length
295 mm
145 mm
Memory bus width
256 Bit
128 Bit
Memory clock speed
5000 MHz
6000 MHz
Memory bandwidth
160.0 GB/s
96 GB/s
DirectX
11.2 (11_0)
12 (12_0)
Shader Model
5.0
6.4
OpenGL
4.4
4.6
OpenCL
1.2
2.0
Vulkan
N/A
1.2.131
Bitcoin / BTC (SHA256)
265 Mh/s
Ethereum / ETH (DaggerHashimoto)
24 Mh/s
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