Radeon HD 6790 vs Radeon R9 M270X
In this comparison between Radeon HD 6790 and Radeon R9 M270X 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 6790 will be the best choice, for others Radeon R9 M270X will be their preference. Study the comparison tables below and make your choice.
Radeon R9 M270X
Main Specs
Radeon HD 6790
Radeon R9 M270X
Power consumption (TDP)
150 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
4 GB
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
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Radeon HD 6790 is connected by PCIe 2.0 x16, and Radeon R9 M270X uses PCIe 3.0 x16 interface.
Radeon R9 M270X has 3 GB more memory, than Radeon HD 6790.
Both cards are used in Desktops.
Radeon HD 6790 is build with Terascale 2 architecture, and Radeon R9 M270X - with GCN 1.0.
Core clock speed of Radeon HD 6790 is 115 MHz higher, than Radeon R9 M270X.
Radeon HD 6790 is manufactured by 40 nm process technology, and Radeon R9 M270X - by 28 nm process technology.
Memory clock speed of Radeon R9 M270X is 75 MHz higher, than Radeon HD 6790.
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
6−7
ultra / 1080p
4−5
4−5
QHD / 1440p
0−1
0−1
low / 720p
18−20
16−18
medium / 1080p
9−10
8−9
The average gaming FPS of Radeon HD 6790 in Assassin's Creed Odyssey is 11% more, than Radeon R9 M270X.
high / 1080p
12−14
10−12
ultra / 1080p
10−12
10−11
QHD / 1440p
0−1
0−1
low / 720p
27−30
24−27
medium / 1080p
14−16
12−14
The average gaming FPS of Radeon HD 6790 in Battlefield 5 is 6% more, than Radeon R9 M270X.
low / 768p
45−50
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
Radeon HD 6790 and Radeon R9 M270X have the same average FPS in Call of Duty: Warzone.
low / 768p
140−150
130−140
medium / 768p
120−130
100−110
ultra / 1080p
60−65
50−55
QHD / 1440p
30−35
27−30
4K / 2160p
27−30
27−30
high / 768p
90−95
75−80
The average gaming FPS of Radeon HD 6790 in Counter-Strike: Global Offensive is 14% more, than Radeon R9 M270X.
low / 768p
55−60
55−60
ultra / 1080p
21−24
18−20
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon HD 6790 in Cyberpunk 2077 is 2% more, than Radeon R9 M270X.
low / 768p
85−90
75−80
medium / 768p
65−70
55−60
ultra / 1080p
35−40
30−35
The average gaming FPS of Radeon HD 6790 in Dota 2 is 16% more, than Radeon R9 M270X.
high / 1080p
9−10
8−9
ultra / 1080p
8−9
7−8
4K / 2160p
4−5
3−4
low / 720p
21−24
18−20
medium / 1080p
10−11
8−9
The average gaming FPS of Radeon HD 6790 in Far Cry 5 is 22% more, than Radeon R9 M270X.
high / 1080p
16−18
14−16
ultra / 1080p
10−12
10−11
low / 720p
65−70
60−65
medium / 1080p
27−30
21−24
The average gaming FPS of Radeon HD 6790 in Fortnite is 14% more, than Radeon R9 M270X.
high / 1080p
14−16
12−14
ultra / 1080p
12−14
10−12
QHD / 1440p
2−3
1−2
low / 720p
27−30
24−27
medium / 1080p
16−18
12−14
The average gaming FPS of Radeon HD 6790 in Forza Horizon 4 is 25% more, than Radeon R9 M270X.
low / 768p
55−60
50−55
medium / 768p
50−55
45−50
high / 1080p
14−16
12−14
ultra / 1080p
7−8
6−7
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 6790 in Grand Theft Auto V is 13% more, than Radeon R9 M270X.
high / 1080p
5−6
4−5
ultra / 1080p
4−5
3−4
4K / 2160p
0−1
0−1
low / 720p
14−16
12−14
medium / 1080p
7−8
6−7
The average gaming FPS of Radeon HD 6790 in Metro Exodus is 33% more, than Radeon R9 M270X.
low / 768p
95−100
90−95
high / 1080p
90−95
85−90
ultra / 1080p
85−90
80−85
medium / 1080p
95−100
90−95
The average gaming FPS of Radeon HD 6790 in Minecraft is 5% more, than Radeon R9 M270X.
high / 1080p
16−18
16−18
ultra / 1080p
14−16
14−16
low / 720p
35−40
30−35
medium / 1080p
18−20
18−20
The average gaming FPS of Radeon HD 6790 in PLAYERUNKNOWN'S BATTLEGROUNDS is 10% more, than Radeon R9 M270X.
ultra / 1080p
8−9
7−8
QHD / 1440p
0−1
0−1
low / 720p
14−16
10−12
medium / 1080p
10−12
10−12
The average gaming FPS of Radeon HD 6790 in Red Dead Redemption 2 is 22% more, than Radeon R9 M270X.
low / 768p
27−30
24−27
medium / 768p
18−20
16−18
high / 1080p
10−11
9−10
ultra / 1080p
7−8
6−7
4K / 2160p
6−7
−
The average gaming FPS of Radeon HD 6790 in The Witcher 3: Wild Hunt is 14% more, than Radeon R9 M270X.
low / 768p
85−90
85−90
medium / 768p
45−50
40−45
ultra / 1080p
21−24
18−20
high / 768p
40−45
35−40
The average gaming FPS of Radeon HD 6790 in World of Tanks is 8% more, than Radeon R9 M270X.
Full Specs
Radeon HD 6790
Radeon R9 M270X
Architecture
Terascale 2
GCN 1.0
Code name
Barts
Venus
Type
Desktop
Desktop
Release date
4 April 2011
21 March 2014
Pipelines
800
640
Core clock speed
840 MHz
725 MHz
Boost Clock
775 MHz
Transistor count
1,700 million
1,500 million
Manufacturing process technology
40 nm
28 nm
Texture fill rate
33.60
31.00
Floating-point performance
1,344.0 gflops
1,536 gflops
Length
198 mm
Memory bus width
256 Bit
128 Bit
Memory clock speed
1050 MHz
1125 MHz
Memory bandwidth
134.4 GB/s
72 GB/s
DirectX
11.2 (11_0)
Shader Model
5.0
5.1
OpenGL
4.4
4.4
OpenCL
1.2
Not Listed
Vulkan
N/A
FreeSync
+
Bus support
PCIe 3.0 x16
Bitcoin / BTC (SHA256)
122 Mh/s
Eyefinity
+
HD3D
+
PowerTune
+
DualGraphics
+
ZeroCore
+
Switchable graphics
+
Mantle
+
Compute units
10
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