GeForce GTX 675M vs Radeon RX 640
If you are going to buy a new graphics card and are choosing between GeForce GTX 675M 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 GeForce GTX 675M stacks up against Radeon RX 640, check out specs charts below.
GeForce GTX 675M and Radeon RX 640 are Laptop Graphics Cards
Note: GeForce GTX 675M 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 GeForce GTX 675M or Radeon RX 640 here:
Main Specs
GeForce GTX 675M
Radeon RX 640
Power consumption (TDP)
100 Watt
50 Watt
Interface
MXM-B (3.0)
PCIe 3.0 x8
Supplementary power connectors
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
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GeForce GTX 675M has 100% more power consumption, than Radeon RX 640.
GeForce GTX 675M is connected by MXM-B (3.0), and Radeon RX 640 uses PCIe 3.0 x8 interface.
Radeon RX 640 has 2 GB more memory, than GeForce GTX 675M.
Both cards are used in Laptops.
GeForce GTX 675M is build with Fermi architecture, and Radeon RX 640 - with Polaris.
Core clock speed of Radeon RX 640 is 598 MHz higher, than GeForce GTX 675M.
GeForce GTX 675M is manufactured by 40 nm process technology, and Radeon RX 640 - by 14 nm process technology.
Memory clock speed of Radeon RX 640 is 4500 MHz higher, than GeForce GTX 675M.
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
10−11
5−6
ultra / 1080p
6−7
3−4
QHD / 1440p
0−1
2−3
low / 720p
21−24
16−18
medium / 1080p
12−14
7−8
The average gaming FPS of GeForce GTX 675M in Assassin's Creed Odyssey is 62% more, than Radeon RX 640.
high / 1080p
16−18
10−12
ultra / 1080p
14−16
8−9
QHD / 1440p
0−1
0−1
low / 720p
35−40
24−27
medium / 1080p
18−20
10−12
The average gaming FPS of GeForce GTX 675M in Battlefield 5 is 57% more, than Radeon RX 640.
low / 768p
45−50
45−50
high / 1080p
−
40−45
QHD / 1440p
0−1
0−1
GeForce GTX 675M and Radeon RX 640 have the same average FPS in Call of Duty: Warzone.
low / 768p
170−180
130−140
medium / 768p
140−150
100−110
ultra / 1080p
70−75
50−55
QHD / 1440p
40−45
27−30
4K / 2160p
30−33
12−14
high / 768p
100−110
80−85
The average gaming FPS of GeForce GTX 675M in Counter-Strike: Global Offensive is 37% more, than Radeon RX 640.
low / 768p
55−60
50−55
ultra / 1080p
27−30
18−20
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GTX 675M in Cyberpunk 2077 is 12% more, than Radeon RX 640.
low / 768p
90−95
80−85
medium / 768p
75−80
55−60
ultra / 1080p
45−50
30−35
The average gaming FPS of GeForce GTX 675M in Dota 2 is 26% more, than Radeon RX 640.
high / 1080p
12−14
7−8
ultra / 1080p
10−12
5−6
4K / 2160p
4−5
5−6
low / 720p
27−30
18−20
medium / 1080p
12−14
8−9
The average gaming FPS of GeForce GTX 675M in Far Cry 5 is 55% more, than Radeon RX 640.
high / 1080p
18−20
7−8
ultra / 1080p
12−14
0−1
QHD / 1440p
−
0−1
low / 720p
75−80
60−65
medium / 1080p
35−40
18−20
The average gaming FPS of GeForce GTX 675M in Fortnite is 51% more, than Radeon RX 640.
high / 1080p
16−18
10−11
ultra / 1080p
14−16
−
QHD / 1440p
4−5
−
4K / 2160p
−
8−9
low / 720p
35−40
24−27
medium / 1080p
18−20
12−14
The average gaming FPS of GeForce GTX 675M in Forza Horizon 4 is 50% more, than Radeon RX 640.
low / 768p
65−70
50−55
medium / 768p
55−60
−
high / 1080p
18−20
10−12
ultra / 1080p
8−9
5−6
QHD / 1440p
0−1
−
medium / 720p
−
45−50
The average gaming FPS of GeForce GTX 675M in Grand Theft Auto V is 34% more, than Radeon RX 640.
high / 1080p
6−7
3−4
ultra / 1080p
5−6
1−2
4K / 2160p
1−2
−
low / 720p
18−20
10−11
medium / 1080p
9−10
5−6
The average gaming FPS of GeForce GTX 675M in Metro Exodus is 100% more, than Radeon RX 640.
low / 768p
100−110
90−95
ultra / 1080p
90−95
80−85
medium / 1080p
95−100
−
The average gaming FPS of GeForce GTX 675M in Minecraft is 12% more, than Radeon RX 640.
high / 1080p
18−20
6−7
ultra / 1080p
14−16
2−3
4K / 2160p
−
0−1
low / 720p
40−45
27−30
medium / 1080p
20−22
10−11
The average gaming FPS of GeForce GTX 675M in PLAYERUNKNOWN'S BATTLEGROUNDS is 100% more, than Radeon RX 640.
high / 1080p
12−14
−
ultra / 1080p
8−9
−
QHD / 1440p
0−1
−
low / 720p
18−20
10−12
medium / 1080p
12−14
9−10
The average gaming FPS of GeForce GTX 675M in Red Dead Redemption 2 is 60% more, than Radeon RX 640.
low / 768p
35−40
21−24
medium / 768p
21−24
14−16
high / 1080p
12−14
6−7
ultra / 1080p
8−9
4−5
4K / 2160p
7−8
3−4
The average gaming FPS of GeForce GTX 675M in The Witcher 3: Wild Hunt is 70% more, than Radeon RX 640.
low / 768p
90−95
75−80
medium / 768p
50−55
40−45
ultra / 1080p
24−27
18−20
high / 768p
40−45
35−40
The average gaming FPS of GeForce GTX 675M in World of Tanks is 20% more, than Radeon RX 640.
Full Specs
GeForce GTX 675M
Radeon RX 640
Architecture
Fermi
Polaris
Code name
N13E-GS1
Polaris 12
Type
Laptop
Laptop
Release date
22 March 2012
12 August 2019
Pipelines
384
640
Core clock speed
620 MHz
1218 MHz
Boost Clock
1218 MHz
Transistor count
1,950 million
2,200 million
Manufacturing process technology
40 nm
14 nm
Texture fill rate
39.7 billion/sec
38.98
Floating-point performance
952.3 gflops
Memory bus width
256bit
64 Bit
Memory clock speed
1500 MHz
6000 MHz
Memory bandwidth
96.0 GB/s
112.0 GB/s
Shared memory
-
-
DirectX
12 API
12 (12_0)
Shader Model
5.1
6.4
OpenGL
4.5
4.6
OpenCL
1.1
2.0
Vulkan
N/A
1.2.131
CUDA
+
FreeSync
+
CUDA cores
384
Bus support
PCI Express 2.0
SLI options
+
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
Bitcoin / BTC (SHA256)
59 Mh/s
Laptop size
large
large
Optimus
+
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