GeForce GT 640 vs GeForce GT 750M
Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640 and GeForce GT 750M. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 640 and GeForce GT 750M. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
GeForce GT 750M is a Laptop Graphics Card
Note: GeForce GT 750M 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 GeForce GT 750M here:
Main Specs
GeForce GT 640
GeForce GT 750M
Power consumption (TDP)
65 Watt
50 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
DDR3
DDR3
Maximum RAM amount
2 GB
4 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
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GeForce GT 640 has 30% more power consumption, than GeForce GT 750M.
Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
GeForce GT 750M has 2 GB more memory, than GeForce GT 640.
GeForce GT 640 is used in Desktops, and GeForce GT 750M - in Laptops.
GeForce GT 640 and GeForce GT 750M are build with Kepler architecture.
Core clock speed of GeForce GT 750M is 65 MHz higher, than GeForce GT 640.
GeForce GT 640 and GeForce GT 750M are manufactured by 28 nm process technology.
Memory clock speed of GeForce GT 750M is 218 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
5−6
ultra / 1080p
1−2
2−3
QHD / 1440p
0−1
2−3
low / 720p
14−16
16−18
medium / 1080p
5−6
7−8
The average gaming FPS of GeForce GT 750M in Assassin's Creed Odyssey is 33% more, than GeForce GT 640.
high / 1080p
7−8
10−11
ultra / 1080p
5−6
8−9
QHD / 1440p
0−1
0−1
low / 720p
20−22
24−27
medium / 1080p
7−8
10−12
The average gaming FPS of GeForce GT 750M in Battlefield 5 is 30% more, than GeForce GT 640.
low / 768p
50−55
45−50
high / 1080p
35−40
40−45
QHD / 1440p
0−1
0−1
GeForce GT 640 and GeForce GT 750M have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
130−140
medium / 768p
90−95
100−110
ultra / 1080p
45−50
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 GeForce GT 750M in Counter-Strike: Global Offensive is 13% more, than GeForce GT 640.
low / 768p
70−75
50−55
ultra / 1080p
21−24
18−20
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 20% more, than GeForce GT 750M.
low / 768p
70−75
80−85
medium / 768p
50−55
55−60
ultra / 1080p
27−30
30−35
The average gaming FPS of GeForce GT 750M in Dota 2 is 11% more, than GeForce GT 640.
high / 1080p
3−4
7−8
ultra / 1080p
3−4
5−6
4K / 2160p
2−3
5−6
low / 720p
14−16
18−20
medium / 1080p
4−5
8−9
The average gaming FPS of GeForce GT 750M in Far Cry 5 is 80% more, than GeForce GT 640.
high / 1080p
10−12
7−8
ultra / 1080p
5−6
0−1
QHD / 1440p
2−3
0−1
low / 720p
50−55
60−65
medium / 1080p
16−18
18−20
The average gaming FPS of GeForce GT 750M in Fortnite is 11% more, than GeForce GT 640.
high / 1080p
6−7
10−11
QHD / 1440p
4−5
−
4K / 2160p
2−3
8−9
low / 720p
21−24
21−24
medium / 1080p
9−10
12−14
The average gaming FPS of GeForce GT 750M in Forza Horizon 4 is 30% more, than GeForce GT 640.
low / 768p
45−50
50−55
high / 1080p
7−8
10−12
ultra / 1080p
3−4
5−6
QHD / 1440p
0−1
−
medium / 720p
40−45
45−50
The average gaming FPS of GeForce GT 750M in Grand Theft Auto V is 16% more, than GeForce GT 640.
high / 1080p
2−3
3−4
ultra / 1080p
0−1
1−2
4K / 2160p
0−1
−
low / 720p
8−9
10−11
medium / 1080p
4−5
5−6
The average gaming FPS of GeForce GT 750M in Metro Exodus is 20% more, than GeForce GT 640.
low / 768p
80−85
90−95
ultra / 1080p
70−75
80−85
The average gaming FPS of GeForce GT 750M in Minecraft is 12% more, than GeForce GT 640.
high / 1080p
−
6−7
ultra / 1080p
12−14
2−3
4K / 2160p
−
0−1
low / 720p
27−30
27−30
medium / 1080p
14−16
10−11
The average gaming FPS of GeForce GT 640 in PLAYERUNKNOWN'S BATTLEGROUNDS is 38% more, than GeForce GT 750M.
high / 1080p
6−7
−
ultra / 1080p
4−5
−
QHD / 1440p
0−1
−
low / 720p
7−8
10−11
medium / 1080p
−
9−10
The average gaming FPS of GeForce GT 750M in Red Dead Redemption 2 is 42% more, than GeForce GT 640.
low / 768p
14−16
21−24
medium / 768p
10−11
14−16
high / 1080p
5−6
6−7
ultra / 1080p
4−5
4−5
4K / 2160p
0−1
3−4
The average gaming FPS of GeForce GT 750M in The Witcher 3: Wild Hunt is 50% more, than GeForce GT 640.
low / 768p
70−75
75−80
medium / 768p
35−40
40−45
ultra / 1080p
16−18
18−20
high / 768p
30−35
30−35
The average gaming FPS of GeForce GT 750M in World of Tanks is 7% more, than GeForce GT 640.
Full Specs
GeForce GT 640
GeForce GT 750M
Architecture
Kepler
Kepler
Code name
GK107
N14P-GT
Type
Desktop
Laptop
Release date
5 June 2012
1 April 2013
Pipelines
384
384
Core clock speed
902 MHz
967 MHz
Boost Clock
967 MHz
Transistor count
1,270 million
1,270 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
28.86
30.94
Floating-point performance
692.7 gflops
742.7 gflops
Length
145 mm
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
2000 - 5000 MHz
Memory bandwidth
28.51 GB/s
64.19 GB/s
Shared memory
-
DirectX
12 (11_0)
12 API
Shader Model
5.1
5.1
OpenGL
4.6
4.5
OpenCL
1.2
1.1
Vulkan
1.1.126
1.1.126
CUDA
3.0
+
Bus support
PCI Express 3.0
HDMI
+
Bitcoin / BTC (SHA256)
24 Mh/s
27 Mh/s
Laptop size
medium sized
Standard memory configuration
DDR3/GDDR5
eDP 1.2 signal support
Up to 3840x2160
LVDS signal support
Up to 1920x1200
DisplayPort Multimode (DP++) support
Up to 3840x2160
HDCP content protection
+
7.1 channel HD audio on HDMI
+
TrueHD and DTS-HD audio bitstreaming
+
H.264, VC1, MPEG2 1080p video decoder
+
Optimus
+
Blu-Ray 3D Support
+
3D Vision / 3DTV Play
+
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