GeForce GT 640 vs Radeon R7 M275DX
In this comparison between GeForce GT 640 and Radeon R7 M275DX 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 GeForce GT 640 will be the best choice, for others Radeon R7 M275DX will be their preference. Study the comparison tables below and make your choice.
Radeon R7 M275DX is a Laptop Graphics Card
Note: Radeon R7 M275DX 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 R7 M275DX here:
Main Specs
GeForce GT 640
Radeon R7 M275DX
Power consumption (TDP)
65 Watt
Interface
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
DDR3
DDR3
Maximum RAM amount
2 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
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GeForce GT 640 is used in Desktops, and Radeon R7 M275DX - in Laptops.
GeForce GT 640 is build with Kepler architecture, and Radeon R7 M275DX - with GCN.
GeForce GT 640 and Radeon R7 M275DX are manufactured by 28 nm process technology.
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
2−3
9−10
ultra / 1080p
1−2
5−6
QHD / 1440p
0−1
0−1
low / 720p
14−16
21−24
medium / 1080p
5−6
10−12
The average gaming FPS of Radeon R7 M275DX in Assassin's Creed Odyssey is 100% more, than GeForce GT 640.
high / 1080p
7−8
14−16
ultra / 1080p
5−6
12−14
QHD / 1440p
0−1
0−1
low / 720p
20−22
30−35
medium / 1080p
7−8
16−18
The average gaming FPS of Radeon R7 M275DX in Battlefield 5 is 90% more, than GeForce GT 640.
low / 768p
50−55
45−50
high / 1080p
35−40
−
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 640 in Call of Duty: Warzone is 10% more, than Radeon R7 M275DX.
low / 768p
110−120
160−170
medium / 768p
90−95
130−140
ultra / 1080p
45−50
65−70
QHD / 1440p
24−27
35−40
4K / 2160p
18−20
27−30
high / 768p
65−70
100−110
The average gaming FPS of Radeon R7 M275DX in Counter-Strike: Global Offensive is 45% more, than GeForce GT 640.
low / 768p
70−75
55−60
ultra / 1080p
21−24
24−27
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 9% more, than Radeon R7 M275DX.
low / 768p
70−75
90−95
medium / 768p
50−55
70−75
ultra / 1080p
27−30
40−45
The average gaming FPS of Radeon R7 M275DX in Dota 2 is 35% more, than GeForce GT 640.
high / 1080p
3−4
10−12
ultra / 1080p
3−4
10−11
4K / 2160p
2−3
4−5
low / 720p
14−16
24−27
medium / 1080p
4−5
12−14
The average gaming FPS of Radeon R7 M275DX in Far Cry 5 is 140% more, than GeForce GT 640.
high / 1080p
10−12
18−20
ultra / 1080p
5−6
12−14
QHD / 1440p
2−3
−
low / 720p
50−55
70−75
medium / 1080p
16−18
30−35
The average gaming FPS of Radeon R7 M275DX in Fortnite is 61% more, than GeForce GT 640.
high / 1080p
6−7
16−18
ultra / 1080p
−
14−16
QHD / 1440p
4−5
3−4
4K / 2160p
2−3
−
low / 720p
21−24
30−35
medium / 1080p
9−10
18−20
The average gaming FPS of Radeon R7 M275DX in Forza Horizon 4 is 80% more, than GeForce GT 640.
low / 768p
45−50
60−65
medium / 768p
−
55−60
high / 1080p
7−8
18−20
ultra / 1080p
3−4
8−9
QHD / 1440p
0−1
0−1
medium / 720p
40−45
−
The average gaming FPS of Radeon R7 M275DX in Grand Theft Auto V is 57% more, than GeForce GT 640.
high / 1080p
2−3
6−7
ultra / 1080p
0−1
4−5
4K / 2160p
0−1
1−2
low / 720p
8−9
18−20
medium / 1080p
4−5
8−9
The average gaming FPS of Radeon R7 M275DX in Metro Exodus is 120% more, than GeForce GT 640.
low / 768p
80−85
100−110
high / 1080p
−
95−100
ultra / 1080p
70−75
85−90
medium / 1080p
−
95−100
The average gaming FPS of Radeon R7 M275DX in Minecraft is 24% more, than GeForce GT 640.
high / 1080p
−
18−20
ultra / 1080p
12−14
14−16
low / 720p
27−30
40−45
medium / 1080p
14−16
18−20
The average gaming FPS of Radeon R7 M275DX in PLAYERUNKNOWN'S BATTLEGROUNDS is 38% more, than GeForce GT 640.
high / 1080p
6−7
12−14
ultra / 1080p
4−5
8−9
QHD / 1440p
0−1
0−1
low / 720p
7−8
16−18
medium / 1080p
−
12−14
The average gaming FPS of Radeon R7 M275DX in Red Dead Redemption 2 is 100% more, than GeForce GT 640.
low / 768p
14−16
30−35
medium / 768p
10−11
21−24
high / 1080p
5−6
12−14
ultra / 1080p
4−5
7−8
4K / 2160p
0−1
7−8
The average gaming FPS of Radeon R7 M275DX in The Witcher 3: Wild Hunt is 125% more, than GeForce GT 640.
low / 768p
70−75
90−95
medium / 768p
35−40
50−55
ultra / 1080p
16−18
24−27
high / 768p
30−35
40−45
The average gaming FPS of Radeon R7 M275DX in World of Tanks is 35% more, than GeForce GT 640.
Full Specs
GeForce GT 640
Radeon R7 M275DX
Architecture
Kepler
GCN
Code name
GK107
Type
Desktop
Laptop
Release date
5 June 2012
4 June 2014
Pipelines
384
896
Core clock speed
902 MHz
Transistor count
1,270 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
28.86
Floating-point performance
692.7 gflops
Length
145 mm
Memory bus width
128 Bit
Memory clock speed
1782 MHz
Memory bandwidth
28.51 GB/s
Shared memory
+
DirectX
12 (11_0)
DirectX 12, Shader 5.0
Shader Model
5.1
OpenGL
4.6
OpenCL
1.2
Vulkan
1.1.126
CUDA
3.0
Bitcoin / BTC (SHA256)
24 Mh/s
Laptop size
medium sized
Eyefinity
+
AppAcceleration
+
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