GeForce GT 640 vs Radeon HD 7750M
If you are going to buy a new graphics card and are choosing between GeForce GT 640 and Radeon HD 7750M, 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 GT 640 stacks up against Radeon HD 7750M, check out specs charts below.
Radeon HD 7750M is a Laptop Graphics Card
Note: Radeon HD 7750M 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 7750M here:
Main Specs
GeForce GT 640
Radeon HD 7750M
Power consumption (TDP)
65 Watt
28 Watt
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
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GeForce GT 640 has 132% more power consumption, than Radeon HD 7750M.
GeForce GT 640 is connected by PCIe 3.0 x16, and Radeon HD 7750M uses PCIe 2.0 x16 interface.
GeForce GT 640 and Radeon HD 7750M have maximum RAM of 2 GB.
GeForce GT 640 is used in Desktops, and Radeon HD 7750M - in Laptops.
GeForce GT 640 is build with Kepler architecture, and Radeon HD 7750M - with GCN.
Core clock speed of GeForce GT 640 is 327 MHz higher, than Radeon HD 7750M.
GeForce GT 640 and Radeon HD 7750M are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 7750M is 2218 MHz higher, than GeForce GT 640.
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
3−4
ultra / 1080p
1−2
1−2
QHD / 1440p
0−1
0−1
low / 720p
14−16
14−16
medium / 1080p
5−6
5−6
GeForce GT 640 and Radeon HD 7750M have the same average FPS in Assassin's Creed Odyssey.
high / 1080p
7−8
7−8
ultra / 1080p
5−6
5−6
QHD / 1440p
0−1
0−1
low / 720p
20−22
18−20
medium / 1080p
7−8
8−9
GeForce GT 640 and Radeon HD 7750M have the same average FPS in Battlefield 5.
low / 768p
50−55
45−50
high / 1080p
35−40
40−45
QHD / 1440p
0−1
0−1
GeForce GT 640 and Radeon HD 7750M have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
120−130
medium / 768p
90−95
95−100
ultra / 1080p
45−50
45−50
QHD / 1440p
24−27
24−27
4K / 2160p
18−20
−
high / 768p
65−70
70−75
The average gaming FPS of Radeon HD 7750M in Counter-Strike: Global Offensive is 5% more, than GeForce GT 640.
low / 768p
70−75
70−75
ultra / 1080p
21−24
18−20
medium / 1080p
45−50
40−45
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 6% more, than Radeon HD 7750M.
low / 768p
70−75
75−80
medium / 768p
50−55
55−60
ultra / 1080p
27−30
27−30
The average gaming FPS of Radeon HD 7750M in Dota 2 is 5% more, than GeForce GT 640.
high / 1080p
3−4
3−4
ultra / 1080p
3−4
3−4
4K / 2160p
2−3
0−1
low / 720p
14−16
14−16
medium / 1080p
4−5
5−6
GeForce GT 640 and Radeon HD 7750M have the same average FPS in Far Cry 5.
high / 1080p
10−12
12−14
ultra / 1080p
5−6
7−8
QHD / 1440p
2−3
4−5
low / 720p
50−55
55−60
medium / 1080p
16−18
14−16
The average gaming FPS of Radeon HD 7750M in Fortnite is 11% more, than GeForce GT 640.
high / 1080p
6−7
6−7
ultra / 1080p
−
6−7
QHD / 1440p
4−5
0−1
4K / 2160p
2−3
−
low / 720p
21−24
20−22
medium / 1080p
9−10
9−10
GeForce GT 640 and Radeon HD 7750M have the same average FPS in Forza Horizon 4.
low / 768p
45−50
45−50
high / 1080p
7−8
8−9
ultra / 1080p
3−4
3−4
QHD / 1440p
0−1
0−1
medium / 720p
40−45
40−45
GeForce GT 640 and Radeon HD 7750M have the same average FPS in Grand Theft Auto V.
high / 1080p
2−3
2−3
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
8−9
7−8
medium / 1080p
4−5
3−4
The average gaming FPS of GeForce GT 640 in Metro Exodus is 25% more, than Radeon HD 7750M.
low / 768p
80−85
85−90
high / 1080p
−
65−70
ultra / 1080p
70−75
−
The average gaming FPS of Radeon HD 7750M in Minecraft is 6% more, than GeForce GT 640.
ultra / 1080p
12−14
12−14
low / 720p
27−30
27−30
medium / 1080p
14−16
14−16
GeForce GT 640 and Radeon HD 7750M have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
high / 1080p
6−7
6−7
ultra / 1080p
4−5
4−5
QHD / 1440p
0−1
0−1
low / 720p
7−8
7−8
GeForce GT 640 and Radeon HD 7750M have the same average FPS in Red Dead Redemption 2.
low / 768p
14−16
16−18
medium / 768p
10−11
12−14
high / 1080p
5−6
6−7
ultra / 1080p
4−5
4−5
4K / 2160p
0−1
1−2
The average gaming FPS of Radeon HD 7750M in The Witcher 3: Wild Hunt is 25% more, than GeForce GT 640.
low / 768p
70−75
70−75
medium / 768p
35−40
35−40
ultra / 1080p
16−18
16−18
high / 768p
30−35
30−35
GeForce GT 640 and Radeon HD 7750M have the same average FPS in World of Tanks.
Full Specs
GeForce GT 640
Radeon HD 7750M
Architecture
Kepler
GCN
Code name
GK107
Lombok XL
Type
Desktop
Laptop
Release date
5 June 2012
24 April 2012
Pipelines
384
512
Core clock speed
902 MHz
575 MHz
Transistor count
1,270 million
1,500 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
28.86
18.40
Floating-point performance
692.7 gflops
588.8 gflops
Length
145 mm
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
4000 MHz
Memory bandwidth
28.51 GB/s
64 GB/s
Shared memory
-
DirectX
12 (11_0)
12 (11_1)
Shader Model
5.1
5.1
OpenGL
4.6
4.6
OpenCL
1.2
1.2
Vulkan
1.1.126
1.2.131
CUDA
3.0
Bitcoin / BTC (SHA256)
24 Mh/s
Laptop size
medium sized
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