GeForce GT 640 vs GeForce GT 745A
When choosing between GeForce GT 640 and GeForce GT 745A, 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 GT 745A.
GeForce GT 745A
Main Specs
GeForce GT 640
GeForce GT 745A
Power consumption (TDP)
65 Watt
33 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
DDR3
DDR3
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 96% more power consumption, than GeForce GT 745A.
Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
GeForce GT 640 and GeForce GT 745A have maximum RAM of 2 GB.
Both cards are used in Desktops.
GeForce GT 640 and GeForce GT 745A are build with Kepler architecture.
Core clock speed of GeForce GT 640 is 65 MHz higher, than GeForce GT 745A.
GeForce GT 640 and GeForce GT 745A are manufactured by 28 nm process technology.
Memory clock speed of GeForce GT 745A 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
2−3
ultra / 1080p
1−2
0−1
QHD / 1440p
0−1
0−1
low / 720p
14−16
12−14
medium / 1080p
5−6
4−5
The average gaming FPS of GeForce GT 640 in Assassin's Creed Odyssey is 16% more, than GeForce GT 745A.
high / 1080p
7−8
6−7
ultra / 1080p
5−6
5−6
QHD / 1440p
0−1
0−1
low / 720p
20−22
16−18
medium / 1080p
7−8
7−8
The average gaming FPS of GeForce GT 640 in Battlefield 5 is 11% more, than GeForce GT 745A.
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 745A in Call of Duty: Warzone is 4% more, than GeForce GT 640.
low / 768p
110−120
110−120
medium / 768p
90−95
85−90
ultra / 1080p
45−50
40−45
QHD / 1440p
24−27
24−27
4K / 2160p
18−20
−
high / 768p
65−70
60−65
The average gaming FPS of GeForce GT 640 in Counter-Strike: Global Offensive is 4% more, than GeForce GT 745A.
low / 768p
70−75
60−65
ultra / 1080p
21−24
18−20
medium / 1080p
45−50
50−55
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 6% more, than GeForce GT 745A.
low / 768p
70−75
70−75
medium / 768p
50−55
50−55
ultra / 1080p
27−30
24−27
The average gaming FPS of GeForce GT 640 in Dota 2 is 2% more, than GeForce GT 745A.
high / 1080p
3−4
3−4
ultra / 1080p
3−4
3−4
4K / 2160p
2−3
1−2
low / 720p
14−16
12−14
medium / 1080p
4−5
4−5
GeForce GT 640 and GeForce GT 745A have the same average FPS in Far Cry 5.
high / 1080p
10−12
10−12
ultra / 1080p
5−6
6−7
QHD / 1440p
2−3
2−3
low / 720p
50−55
50−55
medium / 1080p
16−18
14−16
GeForce GT 640 and GeForce GT 745A have the same average FPS in Fortnite.
high / 1080p
6−7
7−8
ultra / 1080p
−
5−6
QHD / 1440p
4−5
0−1
4K / 2160p
2−3
−
low / 720p
21−24
18−20
medium / 1080p
9−10
9−10
GeForce GT 640 and GeForce GT 745A have the same average FPS in Forza Horizon 4.
low / 768p
45−50
45−50
medium / 768p
−
40−45
high / 1080p
7−8
7−8
ultra / 1080p
3−4
3−4
QHD / 1440p
0−1
0−1
medium / 720p
40−45
−
GeForce GT 640 and GeForce GT 745A have the same average FPS in Grand Theft Auto V.
high / 1080p
2−3
1−2
ultra / 1080p
0−1
0−1
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 745A.
low / 768p
80−85
80−85
high / 1080p
−
80−85
ultra / 1080p
70−75
70−75
GeForce GT 640 and GeForce GT 745A have the same average FPS in Minecraft.
high / 1080p
−
14−16
ultra / 1080p
12−14
12−14
low / 720p
27−30
24−27
medium / 1080p
14−16
14−16
The average gaming FPS of GeForce GT 640 in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than GeForce GT 745A.
high / 1080p
6−7
−
ultra / 1080p
4−5
6−7
QHD / 1440p
0−1
−
low / 720p
7−8
8−9
medium / 1080p
−
7−8
The average gaming FPS of GeForce GT 745A 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 745A in The Witcher 3: Wild Hunt is 25% more, than GeForce GT 640.
low / 768p
70−75
80−85
medium / 768p
35−40
35−40
ultra / 1080p
16−18
16−18
high / 768p
30−35
30−35
The average gaming FPS of GeForce GT 745A in World of Tanks is 7% more, than GeForce GT 640.
Full Specs
GeForce GT 640
GeForce GT 745A
Architecture
Kepler
Kepler
Code name
GK107
GK107
Type
Desktop
Desktop
Release date
5 June 2012
26 August 2013
Pipelines
384
384
Core clock speed
902 MHz
837 MHz
Boost Clock
915 MHz
Transistor count
1,270 million
1,270 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
28.86
29.28
Floating-point performance
692.7 gflops
642.8 gflops
Length
145 mm
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
1800 MHz
Memory bandwidth
28.51 GB/s
28.8 GB/s
DirectX
12 (11_0)
12 (11_0)
Shader Model
5.1
5.1
OpenGL
4.6
4.6
OpenCL
1.2
1.2
Vulkan
1.1.126
1.1.126
CUDA
3.0
3.0
Bitcoin / BTC (SHA256)
24 Mh/s
26 Mh/s
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