GeForce GT 640 vs GeForce GT 650M
If you are going to buy a new graphics card and are choosing between GeForce GT 640 and GeForce GT 650M, 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 GeForce GT 650M, check out specs charts below.
GeForce GT 650M is a Laptop Graphics Card
Note: GeForce GT 650M 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 650M here:
Main Specs
GeForce GT 640
GeForce GT 650M
Power consumption (TDP)
65 Watt
45 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
DDR3
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 44% more power consumption, than GeForce GT 650M.
Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
GeForce GT 640 and GeForce GT 650M have maximum RAM of 2 GB.
GeForce GT 640 is used in Desktops, and GeForce GT 650M - in Laptops.
GeForce GT 640 and GeForce GT 650M are build with Kepler architecture.
GeForce GT 640 and GeForce GT 650M are manufactured by 28 nm process technology.
Memory clock speed of GeForce GT 650M is 18 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 GeForce GT 650M have the same average FPS in Assassin's Creed Odyssey.
high / 1080p
7−8
−
ultra / 1080p
5−6
6−7
QHD / 1440p
0−1
0−1
low / 720p
20−22
18−20
medium / 1080p
7−8
7−8
GeForce GT 640 and GeForce GT 650M have the same average FPS in Battlefield 5.
low / 768p
50−55
50−55
high / 1080p
35−40
40−45
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 650M in Call of Duty: Warzone is 4% more, than GeForce GT 640.
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
18−20
high / 768p
65−70
70−75
The average gaming FPS of GeForce GT 650M in Counter-Strike: Global Offensive is 4% more, than GeForce GT 640.
low / 768p
70−75
60−65
ultra / 1080p
21−24
21−24
medium / 1080p
45−50
40−45
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 11% more, than GeForce GT 650M.
low / 768p
70−75
80−85
medium / 768p
50−55
55−60
ultra / 1080p
27−30
27−30
The average gaming FPS of GeForce GT 650M in Dota 2 is 9% more, than GeForce GT 640.
high / 1080p
3−4
4−5
ultra / 1080p
3−4
3−4
4K / 2160p
2−3
2−3
low / 720p
14−16
14−16
medium / 1080p
4−5
5−6
The average gaming FPS of GeForce GT 650M in Far Cry 5 is 20% more, than GeForce GT 640.
high / 1080p
10−12
10−12
ultra / 1080p
5−6
6−7
QHD / 1440p
2−3
4−5
low / 720p
50−55
55−60
medium / 1080p
16−18
14−16
The average gaming FPS of GeForce GT 650M in Fortnite is 5% more, than GeForce GT 640.
high / 1080p
6−7
8−9
ultra / 1080p
−
7−8
QHD / 1440p
4−5
3−4
4K / 2160p
2−3
3−4
low / 720p
21−24
21−24
medium / 1080p
9−10
10−11
GeForce GT 640 and GeForce GT 650M have the same average FPS in Forza Horizon 4.
low / 768p
45−50
50−55
medium / 768p
−
40−45
high / 1080p
7−8
8−9
ultra / 1080p
3−4
3−4
QHD / 1440p
0−1
0−1
medium / 720p
40−45
−
The average gaming FPS of GeForce GT 650M in Grand Theft Auto V is 10% more, than GeForce GT 640.
high / 1080p
2−3
2−3
ultra / 1080p
0−1
1−2
4K / 2160p
0−1
0−1
low / 720p
8−9
7−8
medium / 1080p
4−5
4−5
The average gaming FPS of GeForce GT 640 in Metro Exodus is 25% more, than GeForce GT 650M.
low / 768p
80−85
90−95
high / 1080p
−
85−90
ultra / 1080p
70−75
80−85
The average gaming FPS of GeForce GT 650M in Minecraft is 12% 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 GeForce GT 650M have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
high / 1080p
6−7
−
ultra / 1080p
4−5
6−7
QHD / 1440p
0−1
−
low / 720p
7−8
7−8
The average gaming FPS of GeForce GT 650M in Red Dead Redemption 2 is 16% more, than GeForce GT 640.
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
2−3
The average gaming FPS of GeForce GT 650M 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 GeForce GT 650M have the same average FPS in World of Tanks.
Full Specs
GeForce GT 640
GeForce GT 650M
Architecture
Kepler
Kepler
Code name
GK107
N13E-GE
Type
Desktop
Laptop
Release date
5 June 2012
22 March 2012
Pipelines
384
384
Core clock speed
902 MHz
Boost Clock
900 MHz
Transistor count
1,270 million
1,270 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
28.86
Floating-point performance
692.7 gflops
652.8 gflops
Length
145 mm
Memory bus width
128 Bit
128bit
Memory clock speed
1782 MHz
1800 - 4000 MHz
Memory bandwidth
28.51 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
+
CUDA cores
384
Bus support
PCI Express 2.0, PCI Express 3.0
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
3D Blu-Ray
+
Bitcoin / BTC (SHA256)
24 Mh/s
21 Mh/s
Laptop size
medium sized
Optimus
+
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