Radeon HD 6990 vs Radeon R9 M485X
In this comparison between Radeon HD 6990 and Radeon R9 M485X 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 M485X will be their preference. Study the comparison tables below and make your choice.
Radeon R9 M485X is a Laptop Graphics Card
Note: Radeon R9 M485X 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 R9 M485X here:
Main Specs
Radeon HD 6990
Radeon R9 M485X
Power consumption (TDP)
375 Watt
250 Watt
Interface
PCIe 2.0 x16
MXM-B (3.0)
Supplementary power connectors
2x 8-pin
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
8 GB MB
Display Connectors
1x DVI, 4x mini-DisplayPort
No outputs
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Radeon HD 6990 has 50% more power consumption, than Radeon R9 M485X.
Radeon HD 6990 is connected by PCIe 2.0 x16, and Radeon R9 M485X uses MXM-B (3.0) interface.
Radeon R9 M485X has 6 GB more memory, than Radeon HD 6990.
Radeon HD 6990 is used in Desktops, and Radeon R9 M485X - in Laptops.
Radeon HD 6990 is build with TeraScale 3 architecture, and Radeon R9 M485X - with GCN 3.
Core clock speed of Radeon HD 6990 is 107 MHz higher, than Radeon R9 M485X.
Radeon HD 6990 is manufactured by 40 nm process technology, and Radeon R9 M485X - by 28 nm process technology.
Memory clock speed of Radeon HD 6990 and Radeon R9 M485X is 5000 MHz.
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
24−27
ultra / 1080p
9−10
14−16
QHD / 1440p
3−4
10−11
4K / 2160p
−
6−7
low / 720p
30−35
45−50
medium / 1080p
18−20
30−35
The average gaming FPS of Radeon R9 M485X in Assassin's Creed Odyssey is 73% more, than Radeon HD 6990.
high / 1080p
24−27
35−40
ultra / 1080p
21−24
30−35
QHD / 1440p
7−8
18−20
4K / 2160p
5−6
10−12
low / 720p
50−55
80−85
medium / 1080p
27−30
45−50
The average gaming FPS of Radeon R9 M485X in Battlefield 5 is 65% more, than Radeon HD 6990.
low / 768p
45−50
50−55
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon R9 M485X in Call of Duty: Warzone is 10% more, than Radeon HD 6990.
low / 768p
210−220
240−250
medium / 768p
170−180
210−220
ultra / 1080p
95−100
140−150
QHD / 1440p
50−55
110−120
4K / 2160p
30−33
60−65
high / 768p
140−150
180−190
The average gaming FPS of Radeon R9 M485X in Counter-Strike: Global Offensive is 35% 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 M485X 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
90−95
The average gaming FPS of Radeon R9 M485X in Dota 2 is 22% more, than Radeon HD 6990.
high / 1080p
18−20
30−35
ultra / 1080p
16−18
27−30
QHD / 1440p
−
21−24
4K / 2160p
6−7
10−11
low / 720p
35−40
60−65
medium / 1080p
18−20
30−35
The average gaming FPS of Radeon R9 M485X in Far Cry 5 is 73% more, than Radeon HD 6990.
high / 1080p
24−27
40−45
ultra / 1080p
18−20
30−35
QHD / 1440p
16−18
18−20
low / 720p
95−100
140−150
medium / 1080p
50−55
85−90
The average gaming FPS of Radeon R9 M485X in Fortnite is 54% more, than Radeon HD 6990.
high / 1080p
24−27
40−45
ultra / 1080p
20−22
30−35
QHD / 1440p
9−10
18−20
4K / 2160p
−
16−18
low / 720p
50−55
80−85
medium / 1080p
27−30
45−50
The average gaming FPS of Radeon R9 M485X in Forza Horizon 4 is 62% more, than Radeon HD 6990.
low / 768p
85−90
110−120
medium / 768p
75−80
100−110
high / 1080p
30−33
50−55
ultra / 1080p
12−14
21−24
QHD / 1440p
3−4
10−12
The average gaming FPS of Radeon R9 M485X in Grand Theft Auto V is 45% more, than Radeon HD 6990.
high / 1080p
9−10
16−18
ultra / 1080p
7−8
12−14
QHD / 1440p
−
12−14
4K / 2160p
2−3
4−5
low / 720p
27−30
45−50
medium / 1080p
12−14
21−24
The average gaming FPS of Radeon R9 M485X in Metro Exodus is 66% more, than Radeon HD 6990.
low / 768p
110−120
120−130
ultra / 1080p
100−110
−
medium / 1080p
100−110
110−120
The average gaming FPS of Radeon R9 M485X in Minecraft is 9% more, than Radeon HD 6990.
high / 1080p
21−24
−
ultra / 1080p
18−20
14−16
low / 720p
55−60
80−85
medium / 1080p
24−27
18−20
The average gaming FPS of Radeon R9 M485X in PLAYERUNKNOWN'S BATTLEGROUNDS is 11% more, than Radeon HD 6990.
high / 1080p
14−16
18−20
ultra / 1080p
9−10
12−14
QHD / 1440p
0−1
4−5
4K / 2160p
−
3−4
low / 720p
27−30
45−50
medium / 1080p
16−18
24−27
The average gaming FPS of Radeon R9 M485X in Red Dead Redemption 2 is 52% more, than Radeon HD 6990.
low / 768p
55−60
90−95
medium / 768p
30−35
55−60
high / 1080p
18−20
30−35
ultra / 1080p
10−12
18−20
4K / 2160p
8−9
10−11
The average gaming FPS of Radeon R9 M485X in The Witcher 3: Wild Hunt is 68% more, than Radeon HD 6990.
low / 768p
100−110
90−95
medium / 768p
60−65
60−65
ultra / 1080p
35−40
45−50
high / 768p
50−55
55−60
The average gaming FPS of Radeon R9 M485X in World of Tanks is 1% more, than Radeon HD 6990.
Full Specs
Radeon HD 6990
Radeon R9 M485X
Architecture
TeraScale 3
GCN 3
Code name
Antilles
Amethyst
Type
Desktop
Laptop
Release date
8 March 2011
14 May 2016
Pipelines
1536
2048
Core clock speed
830 MHz
723 MHz
Transistor count
2,640 million
5,000 million
Manufacturing process technology
40 nm
28 nm
Texture fill rate
79.68
92.54
Floating-point performance
2x 2,549.8 gflops
2,961 gflops
Length
295 mm
Memory bus width
256 Bit
256 Bit
Memory clock speed
5000 MHz
5000 MHz
Memory bandwidth
160.0 GB/s
160.0 GB/s
Shared memory
-
DirectX
11.2 (11_0)
12 (12_0)
Shader Model
5.0
6.3
OpenGL
4.4
4.6
OpenCL
1.2
2.0
Vulkan
N/A
1.2.131
Bitcoin / BTC (SHA256)
265 Mh/s
Laptop size
large
Ethereum / ETH (DaggerHashimoto)
24 Mh/s
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