GeForce GT 445M vs GeForce GT 640M
In this comparison between GeForce GT 445M and GeForce GT 640M you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GT 445M will be the best choice, for others GeForce GT 640M will be their preference. Study the comparison tables below and make your choice.
GeForce GT 445M and GeForce GT 640M are Laptop Graphics Cards
Note: GeForce GT 445M and GeForce GT 640M are only used in laptop graphics. They have 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 or GeForce GT 640M here:
Main Specs
GeForce GT 445M
GeForce GT 640M
Power consumption (TDP)
35 Watt
32 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Memory type
GDDR5
DDR3\GDDR5
Maximum RAM amount
3 GB
2 GB
Display Connectors
No outputs
No outputs
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GeForce GT 445M has 9% more power consumption, than GeForce GT 640M.
GeForce GT 445M is connected by PCIe 2.0 x16, and GeForce GT 640M uses PCIe 3.0 x16 interface.
GeForce GT 445M has 1 GB more memory, than GeForce GT 640M.
Both cards are used in Laptops.
GeForce GT 445M is build with Fermi architecture, and GeForce GT 640M - with Kepler.
GeForce GT 445M is manufactured by 40 nm process technology, and GeForce GT 640M - by 28 nm process technology.
Memory clock speed of GeForce GT 640M is 550 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
0−1
ultra / 1080p
0−1
0−1
QHD / 1440p
0−1
0−1
low / 720p
10−11
10−12
medium / 1080p
1−2
2−3
GeForce GT 445M and GeForce GT 640M have the same average FPS in Assassin's Creed Odyssey.
ultra / 1080p
2−3
3−4
QHD / 1440p
0−1
0−1
low / 720p
10−11
12−14
medium / 1080p
3−4
4−5
The average gaming FPS of GeForce GT 640M in Battlefield 5 is 40% more, than GeForce GT 445M.
low / 768p
50−55
50−55
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
GeForce GT 445M and GeForce GT 640M have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
110−120
medium / 768p
80−85
85−90
ultra / 1080p
30−35
35−40
4K / 2160p
9−10
10−11
high / 768p
55−60
55−60
The average gaming FPS of GeForce GT 640M in Counter-Strike: Global Offensive is 3% more, than GeForce GT 445M.
low / 768p
70−75
70−75
ultra / 1080p
12−14
12−14
medium / 1080p
45−50
45−50
GeForce GT 445M and GeForce GT 640M have the same average FPS in Cyberpunk 2077.
low / 768p
70−75
70−75
medium / 768p
40−45
40−45
ultra / 1080p
16−18
18−20
GeForce GT 445M and GeForce GT 640M have the same average FPS in Dota 2.
high / 1080p
1−2
2−3
ultra / 1080p
−
2−3
4K / 2160p
0−1
0−1
low / 720p
8−9
9−10
medium / 1080p
2−3
3−4
The average gaming FPS of GeForce GT 640M in Far Cry 5 is 25% more, than GeForce GT 445M.
ultra / 1080p
5−6
5−6
QHD / 1440p
1−2
1−2
low / 720p
45−50
45−50
medium / 1080p
5−6
7−8
GeForce GT 445M and GeForce GT 640M have the same average FPS in Fortnite.
high / 1080p
2−3
2−3
QHD / 1440p
0−1
0−1
low / 720p
12−14
14−16
medium / 1080p
4−5
5−6
The average gaming FPS of GeForce GT 640M in Forza Horizon 4 is 16% more, than GeForce GT 445M.
low / 768p
40−45
40−45
high / 1080p
2−3
3−4
ultra / 1080p
−
2−3
QHD / 1440p
0−1
0−1
medium / 720p
30−35
30−35
The average gaming FPS of GeForce GT 640M in Grand Theft Auto V is 4% more, than GeForce GT 445M.
high / 1080p
0−1
1−2
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
1−2
2−3
medium / 1080p
−
2−3
The average gaming FPS of GeForce GT 640M in Metro Exodus is 100% more, than GeForce GT 445M.
low / 768p
85−90
85−90
high / 1080p
55−60
55−60
GeForce GT 445M and GeForce GT 640M have the same average FPS in Minecraft.
high / 1080p
14−16
14−16
ultra / 1080p
12−14
12−14
low / 720p
21−24
24−27
medium / 1080p
14−16
14−16
The average gaming FPS of GeForce GT 640M in PLAYERUNKNOWN'S BATTLEGROUNDS is 6% more, than GeForce GT 445M.
ultra / 1080p
−
3−4
QHD / 1440p
0−1
0−1
low / 720p
3−4
3−4
GeForce GT 445M and GeForce GT 640M have the same average FPS in Red Dead Redemption 2.
low / 768p
5−6
7−8
medium / 768p
5−6
6−7
high / 1080p
2−3
3−4
4K / 2160p
0−1
0−1
The average gaming FPS of GeForce GT 640M in The Witcher 3: Wild Hunt is 25% more, than GeForce GT 445M.
low / 768p
70−75
70−75
medium / 768p
35−40
35−40
ultra / 1080p
10−12
12−14
high / 768p
27−30
27−30
GeForce GT 445M and GeForce GT 640M have the same average FPS in World of Tanks.
Full Specs
GeForce GT 445M
GeForce GT 640M
Architecture
Fermi
Kepler
Code name
N11E-GE
N13P-GS
Type
Laptop
Laptop
Release date
3 September 2010
22 March 2012
Pipelines
144
384
Core clock speed
1180 MHz
Boost Clock
645 MHz
Transistor count
1,170 million
1,270 million
Manufacturing process technology
40 nm
28 nm
Texture fill rate
10.6 billion/sec
Floating-point performance
339.8 gflops
480.0 gflops
Memory bus width
192 Bit
128bit
Memory clock speed
1250 MHz
1800 - 4000 MHz
Memory bandwidth
60.0 GB/s
Shared memory
-
-
DirectX
12 API
12 API
Shader Model
5.1
5.1
OpenGL
4.5
4.5
OpenCL
1.1
1.1
Vulkan
N/A
1.1.126
CUDA
+
+
CUDA cores
144
384
Bus support
PCI Express 2.0, PCI Express 3.0
SLI options
+
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
3D Blu-Ray
+
Bitcoin / BTC (SHA256)
18 Mh/s
Laptop size
large
medium sized
Optimus
+
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