GeForce GT 445M vs GeForce GT 640
If you are going to buy a new graphics card and are choosing between GeForce GT 445M and GeForce GT 640, 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 445M stacks up against GeForce GT 640, check out specs charts below.
GeForce GT 445M is a Laptop Graphics Card
Note: GeForce GT 445M 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 445M here:
Main Specs
GeForce GT 445M
GeForce GT 640
Power consumption (TDP)
35 Watt
65 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
GDDR5
DDR3
Maximum RAM amount
3 GB
2 GB
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
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GeForce GT 640 has 85% more power consumption, than GeForce GT 445M.
GeForce GT 445M is connected by PCIe 2.0 x16, and GeForce GT 640 uses PCIe 3.0 x16 interface.
GeForce GT 445M has 1 GB more memory, than GeForce GT 640.
GeForce GT 445M is used in Laptops, and GeForce GT 640 - in Desktops.
GeForce GT 445M is build with Fermi architecture, and GeForce GT 640 - with Kepler.
Core clock speed of GeForce GT 445M is 278 MHz higher, than GeForce GT 640.
GeForce GT 445M is manufactured by 40 nm process technology, and GeForce GT 640 - by 28 nm process technology.
Memory clock speed of GeForce GT 640 is 532 MHz higher, than GeForce GT 445M.
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
0−1
2−3
ultra / 1080p
0−1
1−2
QHD / 1440p
0−1
0−1
low / 720p
10−11
14−16
medium / 1080p
1−2
5−6
The average gaming FPS of GeForce GT 640 in Assassin's Creed Odyssey is 66% more, than GeForce GT 445M.
high / 1080p
−
7−8
ultra / 1080p
2−3
5−6
QHD / 1440p
0−1
0−1
low / 720p
10−11
20−22
medium / 1080p
3−4
7−8
The average gaming FPS of GeForce GT 640 in Battlefield 5 is 120% more, than GeForce GT 445M.
low / 768p
50−55
50−55
high / 1080p
45−50
35−40
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 445M in Call of Duty: Warzone is 11% more, than GeForce GT 640.
low / 768p
110−120
110−120
medium / 768p
80−85
90−95
ultra / 1080p
30−35
45−50
QHD / 1440p
−
24−27
4K / 2160p
9−10
18−20
high / 768p
55−60
65−70
The average gaming FPS of GeForce GT 640 in Counter-Strike: Global Offensive is 15% more, than GeForce GT 445M.
low / 768p
70−75
70−75
ultra / 1080p
12−14
21−24
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 6% more, than GeForce GT 445M.
low / 768p
70−75
70−75
medium / 768p
40−45
50−55
ultra / 1080p
16−18
27−30
The average gaming FPS of GeForce GT 640 in Dota 2 is 15% more, than GeForce GT 445M.
high / 1080p
1−2
3−4
ultra / 1080p
−
3−4
4K / 2160p
0−1
2−3
low / 720p
8−9
14−16
medium / 1080p
2−3
4−5
The average gaming FPS of GeForce GT 640 in Far Cry 5 is 75% more, than GeForce GT 445M.
high / 1080p
−
10−12
ultra / 1080p
5−6
5−6
QHD / 1440p
1−2
2−3
low / 720p
45−50
50−55
medium / 1080p
5−6
16−18
The average gaming FPS of GeForce GT 640 in Fortnite is 26% more, than GeForce GT 445M.
high / 1080p
2−3
6−7
QHD / 1440p
0−1
4−5
4K / 2160p
−
2−3
low / 720p
12−14
21−24
medium / 1080p
4−5
9−10
The average gaming FPS of GeForce GT 640 in Forza Horizon 4 is 100% more, than GeForce GT 445M.
low / 768p
40−45
45−50
high / 1080p
2−3
7−8
ultra / 1080p
−
3−4
QHD / 1440p
0−1
0−1
medium / 720p
30−35
40−45
The average gaming FPS of GeForce GT 640 in Grand Theft Auto V is 28% more, than GeForce GT 445M.
high / 1080p
0−1
2−3
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
1−2
8−9
medium / 1080p
−
4−5
The average gaming FPS of GeForce GT 640 in Metro Exodus is 700% more, than GeForce GT 445M.
low / 768p
85−90
80−85
high / 1080p
55−60
−
ultra / 1080p
−
70−75
The average gaming FPS of GeForce GT 445M in Minecraft is 6% more, than GeForce GT 640.
high / 1080p
14−16
−
ultra / 1080p
12−14
12−14
low / 720p
21−24
27−30
medium / 1080p
14−16
14−16
The average gaming FPS of GeForce GT 640 in PLAYERUNKNOWN'S BATTLEGROUNDS is 12% more, than GeForce GT 445M.
high / 1080p
−
6−7
ultra / 1080p
−
4−5
QHD / 1440p
0−1
0−1
low / 720p
3−4
7−8
The average gaming FPS of GeForce GT 640 in Red Dead Redemption 2 is 133% more, than GeForce GT 445M.
low / 768p
5−6
14−16
medium / 768p
5−6
10−11
high / 1080p
2−3
5−6
ultra / 1080p
−
4−5
4K / 2160p
0−1
0−1
The average gaming FPS of GeForce GT 640 in The Witcher 3: Wild Hunt is 150% more, than GeForce GT 445M.
low / 768p
70−75
70−75
medium / 768p
35−40
35−40
ultra / 1080p
10−12
16−18
high / 768p
27−30
30−35
The average gaming FPS of GeForce GT 640 in World of Tanks is 5% more, than GeForce GT 445M.
Full Specs
GeForce GT 445M
GeForce GT 640
Architecture
Fermi
Kepler
Code name
N11E-GE
GK107
Type
Laptop
Desktop
Release date
3 September 2010
5 June 2012
Pipelines
144
384
Core clock speed
1180 MHz
902 MHz
Transistor count
1,170 million
1,270 million
Manufacturing process technology
40 nm
28 nm
Texture fill rate
10.6 billion/sec
28.86
Floating-point performance
339.8 gflops
692.7 gflops
Length
145 mm
Memory bus width
192 Bit
128 Bit
Memory clock speed
1250 MHz
1782 MHz
Memory bandwidth
60.0 GB/s
28.51 GB/s
Shared memory
-
DirectX
12 API
12 (11_0)
Shader Model
5.1
5.1
OpenGL
4.5
4.6
OpenCL
1.1
1.2
Vulkan
N/A
1.1.126
CUDA
+
3.0
CUDA cores
144
SLI options
+
Bitcoin / BTC (SHA256)
24 Mh/s
Laptop size
large
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