Radeon HD 6990 vs Radeon R9 280X
In this comparison between Radeon HD 6990 and Radeon R9 280X 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 6990 will be the best choice, for others Radeon R9 280X will be their preference. Study the comparison tables below and make your choice.
Main Specs
Radeon HD 6990
Radeon R9 280X
Power consumption (TDP)
375 Watt
250 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 8-pin
1 x 6-pin + 1 x 8-pin
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
3 GB
Display Connectors
1x DVI, 4x mini-DisplayPort
2x DVI, 1x HDMI, 1x DisplayPort
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Radeon HD 6990 has 50% more power consumption, than Radeon R9 280X.
Radeon HD 6990 is connected by PCIe 2.0 x16, and Radeon R9 280X uses PCIe 3.0 x16 interface.
Radeon R9 280X has 1 GB more memory, than Radeon HD 6990.
Both cards are used in Desktops.
Radeon HD 6990 is build with TeraScale 3 architecture, and Radeon R9 280X - with GCN.
Radeon HD 6990 is manufactured by 40 nm process technology, and Radeon R9 280X - by 28 nm process technology.
Radeon HD 6990 is 20 mm longer, than Radeon R9 280X.
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
35−40
ultra / 1080p
9−10
21−24
QHD / 1440p
3−4
16−18
4K / 2160p
−
10−11
low / 720p
30−35
60−65
medium / 1080p
18−20
40−45
The average gaming FPS of Radeon R9 280X in Assassin's Creed Odyssey is 140% more, than Radeon HD 6990.
high / 1080p
24−27
55−60
ultra / 1080p
21−24
45−50
QHD / 1440p
7−8
35−40
4K / 2160p
5−6
18−20
low / 720p
50−55
100−110
medium / 1080p
27−30
60−65
The average gaming FPS of Radeon R9 280X in Battlefield 5 is 134% more, than Radeon HD 6990.
low / 768p
45−50
50−55
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon R9 280X in Call of Duty: Warzone is 10% more, than Radeon HD 6990.
low / 768p
210−220
250−260
medium / 768p
170−180
220−230
ultra / 1080p
95−100
180−190
QHD / 1440p
50−55
110−120
4K / 2160p
30−33
70−75
high / 768p
140−150
210−220
The average gaming FPS of Radeon R9 280X in Counter-Strike: Global Offensive is 48% more, than Radeon HD 6990.
low / 768p
55−60
60−65
ultra / 1080p
40−45
−
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon R9 280X in Cyberpunk 2077 is 15% more, than Radeon HD 6990.
low / 768p
110−120
120−130
medium / 768p
90−95
110−120
ultra / 1080p
60−65
100−110
The average gaming FPS of Radeon R9 280X in Dota 2 is 27% more, than Radeon HD 6990.
high / 1080p
18−20
45−50
ultra / 1080p
16−18
40−45
QHD / 1440p
−
27−30
4K / 2160p
6−7
14−16
low / 720p
35−40
80−85
medium / 1080p
18−20
45−50
The average gaming FPS of Radeon R9 280X in Far Cry 5 is 147% more, than Radeon HD 6990.
high / 1080p
24−27
60−65
ultra / 1080p
18−20
45−50
QHD / 1440p
16−18
27−30
4K / 2160p
−
27−30
low / 720p
95−100
180−190
medium / 1080p
50−55
110−120
The average gaming FPS of Radeon R9 280X in Fortnite is 107% more, than Radeon HD 6990.
high / 1080p
24−27
60−65
ultra / 1080p
20−22
45−50
QHD / 1440p
9−10
30−35
4K / 2160p
−
24−27
low / 720p
50−55
100−110
medium / 1080p
27−30
65−70
The average gaming FPS of Radeon R9 280X in Forza Horizon 4 is 133% more, than Radeon HD 6990.
low / 768p
85−90
140−150
medium / 768p
75−80
120−130
high / 1080p
30−33
70−75
ultra / 1080p
12−14
30−35
QHD / 1440p
3−4
21−24
The average gaming FPS of Radeon R9 280X in Grand Theft Auto V is 88% more, than Radeon HD 6990.
high / 1080p
9−10
24−27
ultra / 1080p
7−8
20−22
QHD / 1440p
−
16−18
4K / 2160p
2−3
8−9
low / 720p
27−30
65−70
medium / 1080p
12−14
30−35
The average gaming FPS of Radeon R9 280X in Metro Exodus is 158% more, than Radeon HD 6990.
low / 768p
110−120
130−140
ultra / 1080p
100−110
−
medium / 1080p
100−110
120−130
The average gaming FPS of Radeon R9 280X in Minecraft is 18% more, than Radeon HD 6990.
high / 1080p
21−24
−
ultra / 1080p
18−20
14−16
low / 720p
55−60
100−110
medium / 1080p
24−27
18−20
The average gaming FPS of Radeon R9 280X in PLAYERUNKNOWN'S BATTLEGROUNDS is 35% more, than Radeon HD 6990.
high / 1080p
14−16
24−27
ultra / 1080p
9−10
16−18
QHD / 1440p
0−1
10−11
4K / 2160p
−
7−8
low / 720p
27−30
65−70
medium / 1080p
16−18
35−40
The average gaming FPS of Radeon R9 280X in Red Dead Redemption 2 is 111% more, than Radeon HD 6990.
low / 768p
55−60
130−140
medium / 768p
30−35
85−90
high / 1080p
18−20
45−50
ultra / 1080p
10−12
24−27
4K / 2160p
8−9
16−18
The average gaming FPS of Radeon R9 280X in The Witcher 3: Wild Hunt is 148% more, than Radeon HD 6990.
low / 768p
100−110
90−95
medium / 768p
60−65
60−65
ultra / 1080p
35−40
50−55
high / 768p
50−55
60−65
The average gaming FPS of Radeon R9 280X in World of Tanks is 4% more, than Radeon HD 6990.
Full Specs
Radeon HD 6990
Radeon R9 280X
Architecture
TeraScale 3
GCN
Code name
Antilles
Thaiti XTL
Type
Desktop
Desktop
Release date
8 March 2011
8 October 2013
Pipelines
1536
2048
Core clock speed
830 MHz
Boost Clock
1000 MHz
Transistor count
2,640 million
4,313 million
Manufacturing process technology
40 nm
28 nm
Texture fill rate
79.68
128.0
Floating-point performance
2x 2,549.8 gflops
4,096 gflops
Length
295 mm
275 mm
Memory bus width
256 Bit
384 Bit
Memory clock speed
5000 MHz
Memory bandwidth
160.0 GB/s
288 GB/s
Shared memory
-
DirectX
11.2 (11_0)
Shader Model
5.0
5.1
OpenGL
4.4
4.6
OpenCL
1.2
1.2
Vulkan
N/A
+
Monero / XMR (CryptoNight)
0.5 kh/s
FreeSync
+
Bus support
PCIe 3.0
HDMI
+
Bitcoin / BTC (SHA256)
265 Mh/s
494 Mh/s
Eyefinity
+
HD3D
+
TrueAudio
+
Design
reference
DisplayPort support
+
CrossFire
+
DDMA audio
+
Decred / DCR (Decred)
1.07 Gh/s
Ethereum / ETH (DaggerHashimoto)
24 Mh/s
14.42 Mh/s
Zcash / ZEC (Equihash)
285 Sol/s
AppAcceleration
+
LiquidVR
+
TressFX
+
UVD
+
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