Radeon HD 6790 vs Radeon HD 6990M
When comparing Radeon HD 6790 and Radeon HD 6990M, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 6790 and Radeon HD 6990M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Radeon HD 6990M is a Laptop Graphics Card
Note: Radeon HD 6990M 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 HD 6990M here:
Main Specs
Radeon HD 6790
Radeon HD 6990M
Power consumption (TDP)
150 Watt
100 Watt
Interface
PCIe 2.0 x16
MXM-B (3.0)
Supplementary power connectors
2x 6-pin
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
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Radeon HD 6790 has 50% more power consumption, than Radeon HD 6990M.
Radeon HD 6790 is connected by PCIe 2.0 x16, and Radeon HD 6990M uses MXM-B (3.0) interface.
Radeon HD 6990M has 1 GB more memory, than Radeon HD 6790.
Radeon HD 6790 is used in Desktops, and Radeon HD 6990M - in Laptops.
Radeon HD 6790 and Radeon HD 6990M are build with Terascale 2 architecture.
Core clock speed of Radeon HD 6790 is 125 MHz higher, than Radeon HD 6990M.
Radeon HD 6790 and Radeon HD 6990M are manufactured by 40 nm process technology.
Memory clock speed of Radeon HD 6790 is 150 MHz higher, than Radeon HD 6990M.
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
8−9
QHD / 1440p
0−1
3−4
low / 720p
18−20
30−33
medium / 1080p
9−10
16−18
The average gaming FPS of Radeon HD 6990M in Assassin's Creed Odyssey is 80% more, than Radeon HD 6790.
high / 1080p
12−14
21−24
ultra / 1080p
10−12
18−20
QHD / 1440p
0−1
6−7
4K / 2160p
−
5−6
low / 720p
27−30
45−50
medium / 1080p
14−16
24−27
The average gaming FPS of Radeon HD 6990M in Battlefield 5 is 75% more, than Radeon HD 6790.
low / 768p
45−50
45−50
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
Radeon HD 6790 and Radeon HD 6990M have the same average FPS in Call of Duty: Warzone.
low / 768p
140−150
200−210
medium / 768p
120−130
170−180
ultra / 1080p
60−65
90−95
QHD / 1440p
30−35
50−55
4K / 2160p
27−30
30−33
high / 768p
90−95
130−140
The average gaming FPS of Radeon HD 6990M in Counter-Strike: Global Offensive is 41% more, than Radeon HD 6790.
low / 768p
55−60
55−60
ultra / 1080p
21−24
35−40
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 6990M in Cyberpunk 2077 is 11% more, than Radeon HD 6790.
low / 768p
85−90
100−110
medium / 768p
65−70
90−95
ultra / 1080p
35−40
60−65
The average gaming FPS of Radeon HD 6990M in Dota 2 is 34% more, than Radeon HD 6790.
high / 1080p
9−10
16−18
ultra / 1080p
8−9
14−16
4K / 2160p
4−5
6−7
low / 720p
21−24
35−40
medium / 1080p
10−11
18−20
The average gaming FPS of Radeon HD 6990M in Far Cry 5 is 72% more, than Radeon HD 6790.
high / 1080p
16−18
24−27
ultra / 1080p
10−12
18−20
QHD / 1440p
−
16−18
low / 720p
65−70
95−100
medium / 1080p
27−30
50−55
The average gaming FPS of Radeon HD 6990M in Fortnite is 54% more, than Radeon HD 6790.
high / 1080p
14−16
24−27
ultra / 1080p
12−14
18−20
QHD / 1440p
2−3
8−9
low / 720p
27−30
50−55
medium / 1080p
16−18
27−30
The average gaming FPS of Radeon HD 6990M in Forza Horizon 4 is 73% more, than Radeon HD 6790.
low / 768p
55−60
80−85
medium / 768p
50−55
70−75
high / 1080p
14−16
27−30
ultra / 1080p
7−8
10−12
QHD / 1440p
0−1
2−3
The average gaming FPS of Radeon HD 6990M in Grand Theft Auto V is 45% more, than Radeon HD 6790.
high / 1080p
5−6
9−10
ultra / 1080p
4−5
7−8
4K / 2160p
0−1
2−3
low / 720p
14−16
27−30
medium / 1080p
7−8
12−14
The average gaming FPS of Radeon HD 6990M in Metro Exodus is 75% more, than Radeon HD 6790.
low / 768p
95−100
110−120
high / 1080p
90−95
−
ultra / 1080p
85−90
100−110
medium / 1080p
95−100
100−110
The average gaming FPS of Radeon HD 6990M in Minecraft is 14% more, than Radeon HD 6790.
high / 1080p
16−18
21−24
ultra / 1080p
14−16
16−18
low / 720p
35−40
55−60
medium / 1080p
18−20
24−27
The average gaming FPS of Radeon HD 6990M in PLAYERUNKNOWN'S BATTLEGROUNDS is 36% more, than Radeon HD 6790.
high / 1080p
−
14−16
ultra / 1080p
8−9
9−10
QHD / 1440p
0−1
0−1
low / 720p
14−16
27−30
medium / 1080p
10−12
16−18
The average gaming FPS of Radeon HD 6990M in Red Dead Redemption 2 is 63% more, than Radeon HD 6790.
low / 768p
27−30
50−55
medium / 768p
18−20
30−35
high / 1080p
10−11
18−20
ultra / 1080p
7−8
10−11
4K / 2160p
6−7
8−9
The average gaming FPS of Radeon HD 6990M in The Witcher 3: Wild Hunt is 71% more, than Radeon HD 6790.
low / 768p
85−90
100−105
medium / 768p
45−50
60−65
ultra / 1080p
21−24
30−35
high / 768p
40−45
50−55
The average gaming FPS of Radeon HD 6990M in World of Tanks is 24% more, than Radeon HD 6790.
Full Specs
Radeon HD 6790
Radeon HD 6990M
Architecture
Terascale 2
Terascale 2
Code name
Barts
Blackcomb XTX
Type
Desktop
Laptop
Release date
4 April 2011
12 July 2011
Pipelines
800
1120
Core clock speed
840 MHz
715 MHz
Transistor count
1,700 million
1,700 million
Manufacturing process technology
40 nm
40 nm
Texture fill rate
33.60
40.04
Floating-point performance
1,344.0 gflops
1,601.6 gflops
Length
198 mm
Memory bus width
256 Bit
256 Bit
Memory clock speed
1050 MHz
900 MHz
Memory bandwidth
134.4 GB/s
115.2 GB/s
Shared memory
-
DirectX
11.2 (11_0)
11.2 (11_0)
Shader Model
5.0
5.0
OpenGL
4.4
4.4
OpenCL
1.2
1.2
Vulkan
N/A
N/A
Bitcoin / BTC (SHA256)
122 Mh/s
Laptop size
large
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