GeForce GT 640 vs GeForce GTX 670M
When choosing between GeForce GT 640 and GeForce GTX 670M, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GT 640 and GeForce GTX 670M.
GeForce GTX 670M is a Laptop Graphics Card
Note: GeForce GTX 670M 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 GTX 670M here:
Main Specs
GeForce GT 640
GeForce GTX 670M
Power consumption (TDP)
65 Watt
75 Watt
Interface
PCIe 3.0 x16
MXM-B (3.0)
Supplementary power connectors
None
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
3 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
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GeForce GTX 670M has 15% more power consumption, than GeForce GT 640.
GeForce GT 640 is connected by PCIe 3.0 x16, and GeForce GTX 670M uses MXM-B (3.0) interface.
GeForce GTX 670M has 1 GB more memory, than GeForce GT 640.
GeForce GT 640 is used in Desktops, and GeForce GTX 670M - in Laptops.
GeForce GT 640 is build with Kepler architecture, and GeForce GTX 670M - with Fermi.
Core clock speed of GeForce GT 640 is 304 MHz higher, than GeForce GTX 670M.
GeForce GT 640 is manufactured by 28 nm process technology, and GeForce GTX 670M - by 40 nm process technology.
Memory clock speed of GeForce GT 640 is 282 MHz higher, than GeForce GTX 670M.
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
8−9
ultra / 1080p
1−2
5−6
QHD / 1440p
0−1
0−1
low / 720p
14−16
18−20
medium / 1080p
5−6
10−11
The average gaming FPS of GeForce GTX 670M in Assassin's Creed Odyssey is 66% 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
27−30
medium / 1080p
7−8
14−16
The average gaming FPS of GeForce GTX 670M in Battlefield 5 is 70% more, than GeForce GT 640.
low / 768p
50−55
45−50
high / 1080p
35−40
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GTX 670M in Call of Duty: Warzone is 4% more, than GeForce GT 640.
low / 768p
110−120
150−160
medium / 768p
90−95
120−130
ultra / 1080p
45−50
60−65
QHD / 1440p
24−27
35−40
4K / 2160p
18−20
27−30
high / 768p
65−70
90−95
The average gaming FPS of GeForce GTX 670M in Counter-Strike: Global Offensive is 36% more, than GeForce GT 640.
low / 768p
70−75
55−60
ultra / 1080p
21−24
21−24
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 11% more, than GeForce GTX 670M.
low / 768p
70−75
85−90
medium / 768p
50−55
65−70
ultra / 1080p
27−30
40−45
The average gaming FPS of GeForce GTX 670M in Dota 2 is 27% more, than GeForce GT 640.
high / 1080p
3−4
10−11
ultra / 1080p
3−4
9−10
4K / 2160p
2−3
4−5
low / 720p
14−16
21−24
medium / 1080p
4−5
10−11
The average gaming FPS of GeForce GTX 670M in Far Cry 5 is 120% more, than GeForce GT 640.
high / 1080p
10−12
16−18
ultra / 1080p
5−6
12−14
QHD / 1440p
2−3
−
low / 720p
50−55
65−70
medium / 1080p
16−18
27−30
The average gaming FPS of GeForce GTX 670M in Fortnite is 47% more, than GeForce GT 640.
high / 1080p
6−7
14−16
ultra / 1080p
−
12−14
QHD / 1440p
4−5
2−3
4K / 2160p
2−3
−
low / 720p
21−24
30−35
medium / 1080p
9−10
16−18
The average gaming FPS of GeForce GTX 670M in Forza Horizon 4 is 60% more, than GeForce GT 640.
low / 768p
45−50
55−60
medium / 768p
−
50−55
high / 1080p
7−8
14−16
ultra / 1080p
3−4
7−8
QHD / 1440p
0−1
0−1
medium / 720p
40−45
−
The average gaming FPS of GeForce GTX 670M in Grand Theft Auto V is 36% more, than GeForce GT 640.
high / 1080p
2−3
5−6
ultra / 1080p
0−1
4−5
4K / 2160p
0−1
1−2
low / 720p
8−9
14−16
medium / 1080p
4−5
7−8
The average gaming FPS of GeForce GTX 670M in Metro Exodus is 80% more, than GeForce GT 640.
low / 768p
80−85
95−100
high / 1080p
−
90−95
ultra / 1080p
70−75
85−90
medium / 1080p
−
95−100
The average gaming FPS of GeForce GTX 670M in Minecraft is 19% more, than GeForce GT 640.
high / 1080p
−
18−20
ultra / 1080p
12−14
14−16
low / 720p
27−30
35−40
medium / 1080p
14−16
18−20
The average gaming FPS of GeForce GTX 670M in PLAYERUNKNOWN'S BATTLEGROUNDS is 27% more, than GeForce GT 640.
high / 1080p
6−7
−
ultra / 1080p
4−5
8−9
QHD / 1440p
0−1
0−1
low / 720p
7−8
14−16
medium / 1080p
−
12−14
The average gaming FPS of GeForce GTX 670M in Red Dead Redemption 2 is 83% more, than GeForce GT 640.
low / 768p
14−16
30−33
medium / 768p
10−11
18−20
high / 1080p
5−6
10−12
ultra / 1080p
4−5
7−8
4K / 2160p
0−1
6−7
The average gaming FPS of GeForce GTX 670M in The Witcher 3: Wild Hunt is 112% more, than GeForce GT 640.
low / 768p
70−75
90−95
medium / 768p
35−40
45−50
ultra / 1080p
16−18
21−24
high / 768p
30−35
40−45
The average gaming FPS of GeForce GTX 670M in World of Tanks is 30% more, than GeForce GT 640.
Full Specs
GeForce GT 640
GeForce GTX 670M
Architecture
Kepler
Fermi
Code name
GK107
N13E-GS1-LP
Type
Desktop
Laptop
Release date
5 June 2012
22 March 2012
Pipelines
384
336
Core clock speed
902 MHz
598 MHz
Transistor count
1,270 million
1,950 million
Manufacturing process technology
28 nm
40 nm
Texture fill rate
28.86
33.5 billion/sec
Floating-point performance
692.7 gflops
803.7 gflops
Length
145 mm
Memory bus width
128 Bit
192bit
Memory clock speed
1782 MHz
1500 MHz
Memory bandwidth
28.51 GB/s
72.0 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
N/A
CUDA
3.0
+
CUDA cores
336
Bus support
PCI Express 2.0
SLI options
+
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
Bitcoin / BTC (SHA256)
24 Mh/s
53 Mh/s
Laptop size
large
Optimus
+
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