Radeon R9 M275 vs Radeon RX 640
If you are going to buy a new graphics card and are choosing between Radeon R9 M275 and Radeon RX 640, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon R9 M275 stacks up against Radeon RX 640, check out specs charts below.
Radeon R9 M275 and Radeon RX 640 are Laptop Graphics Cards
Note: Radeon R9 M275 and Radeon RX 640 are only used in laptop graphics. They have 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 M275 or Radeon RX 640 here:
Main Specs
Radeon R9 M275
Radeon RX 640
Power consumption (TDP)
50 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
4 GB
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
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Radeon R9 M275 is connected by PCIe 3.0 x16, and Radeon RX 640 uses PCIe 3.0 x8 interface.
Radeon R9 M275 and Radeon RX 640 have maximum RAM of 4 GB.
Both cards are used in Laptops.
Radeon R9 M275 is build with GCN architecture, and Radeon RX 640 - with Polaris.
Core clock speed of Radeon RX 640 is 293 MHz higher, than Radeon R9 M275.
Radeon R9 M275 is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
Memory clock speed of Radeon RX 640 is 1500 MHz higher, than Radeon R9 M275.
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
0−1
5−6
ultra / 1080p
−
3−4
QHD / 1440p
0−1
2−3
low / 720p
12−14
16−18
medium / 1080p
3−4
7−8
The average gaming FPS of Radeon RX 640 in Assassin's Creed Odyssey is 50% more, than Radeon R9 M275.
high / 1080p
5−6
10−12
ultra / 1080p
4−5
8−9
QHD / 1440p
0−1
0−1
low / 720p
16−18
24−27
medium / 1080p
5−6
10−12
The average gaming FPS of Radeon RX 640 in Battlefield 5 is 75% more, than Radeon R9 M275.
low / 768p
50−55
45−50
high / 1080p
45−50
40−45
QHD / 1440p
0−1
0−1
medium / 1080p
50−55
−
The average gaming FPS of Radeon R9 M275 in Call of Duty: Warzone is 11% more, than Radeon RX 640.
low / 768p
110−120
130−140
medium / 768p
90−95
100−110
ultra / 1080p
40−45
50−55
QHD / 1440p
24−27
27−30
4K / 2160p
18−20
12−14
high / 768p
65−70
80−85
The average gaming FPS of Radeon RX 640 in Counter-Strike: Global Offensive is 15% more, than Radeon R9 M275.
low / 768p
60−65
50−55
ultra / 1080p
18−20
18−20
medium / 1080p
50−55
45−50
The average gaming FPS of Radeon R9 M275 in Cyberpunk 2077 is 12% more, than Radeon RX 640.
low / 768p
70−75
80−85
medium / 768p
50−55
55−60
ultra / 1080p
24−27
30−35
The average gaming FPS of Radeon RX 640 in Dota 2 is 14% more, than Radeon R9 M275.
high / 1080p
1−2
7−8
ultra / 1080p
−
5−6
4K / 2160p
0−1
5−6
low / 720p
10−12
18−20
medium / 1080p
3−4
8−9
The average gaming FPS of Radeon RX 640 in Far Cry 5 is 120% more, than Radeon R9 M275.
high / 1080p
9−10
7−8
ultra / 1080p
5−6
0−1
QHD / 1440p
1−2
0−1
low / 720p
50−55
60−65
medium / 1080p
12−14
18−20
The average gaming FPS of Radeon RX 640 in Fortnite is 16% more, than Radeon R9 M275.
high / 1080p
6−7
10−11
ultra / 1080p
4−5
−
QHD / 1440p
0−1
−
4K / 2160p
−
8−9
low / 720p
18−20
24−27
medium / 1080p
7−8
12−14
The average gaming FPS of Radeon RX 640 in Forza Horizon 4 is 45% more, than Radeon R9 M275.
low / 768p
45−50
50−55
high / 1080p
7−8
10−12
ultra / 1080p
4−5
5−6
QHD / 1440p
0−1
−
medium / 720p
35−40
45−50
The average gaming FPS of Radeon RX 640 in Grand Theft Auto V is 20% more, than Radeon R9 M275.
high / 1080p
3−4
3−4
ultra / 1080p
1−2
1−2
4K / 2160p
0−1
−
low / 720p
7−8
10−11
medium / 1080p
4−5
5−6
The average gaming FPS of Radeon RX 640 in Metro Exodus is 25% more, than Radeon R9 M275.
low / 768p
85−90
90−95
high / 1080p
70−75
−
ultra / 1080p
−
80−85
The average gaming FPS of Radeon RX 640 in Minecraft is 5% more, than Radeon R9 M275.
high / 1080p
14−16
6−7
ultra / 1080p
12−14
2−3
4K / 2160p
−
0−1
low / 720p
24−27
27−30
medium / 1080p
14−16
10−11
The average gaming FPS of Radeon R9 M275 in PLAYERUNKNOWN'S BATTLEGROUNDS is 41% more, than Radeon RX 640.
ultra / 1080p
7−8
−
QHD / 1440p
0−1
−
low / 720p
8−9
10−12
medium / 1080p
−
9−10
The average gaming FPS of Radeon RX 640 in Red Dead Redemption 2 is 37% more, than Radeon R9 M275.
low / 768p
16−18
21−24
medium / 768p
12−14
14−16
high / 1080p
6−7
6−7
ultra / 1080p
5−6
4−5
4K / 2160p
−
3−4
The average gaming FPS of Radeon RX 640 in The Witcher 3: Wild Hunt is 20% more, than Radeon R9 M275.
low / 768p
85−90
75−80
medium / 768p
35−40
40−45
ultra / 1080p
14−16
18−20
high / 768p
30−33
35−40
The average gaming FPS of Radeon RX 640 in World of Tanks is 4% more, than Radeon R9 M275.
Full Specs
Radeon R9 M275
Radeon RX 640
Architecture
GCN
Polaris
Code name
Venus
Polaris 12
Type
Laptop
Laptop
Release date
1 August 2014
12 August 2019
Pipelines
640
640
Core clock speed
925 MHz
1218 MHz
Boost Clock
925 MHz
1218 MHz
Transistor count
1,500 million
2,200 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
37.00
38.98
Floating-point performance
1,184 gflops
Memory bus width
128 Bit
64 Bit
Memory clock speed
4500 MHz
6000 MHz
Memory bandwidth
64 GB/s
112.0 GB/s
Shared memory
-
-
DirectX
12 (11_1)
12 (12_0)
Shader Model
5.1
6.4
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
1.2.131
1.2.131
FreeSync
+
Bitcoin / BTC (SHA256)
122 Mh/s
Laptop size
large
large
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