GeForce GT 640 vs GeForce GTX 580
When choosing between GeForce GT 640 and GeForce GTX 580, 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 580.
Main Specs
GeForce GT 640
GeForce GTX 580
Power consumption (TDP)
65 Watt
244 Watt
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
One 6-pin and One 8-pin
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
1536 MB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x mini-HDMI
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GeForce GTX 580 has 275% more power consumption, than GeForce GT 640.
GeForce GT 640 is connected by PCIe 3.0 x16, and GeForce GTX 580 uses PCIe 2.0 x16 interface.
GeForce GTX 580 has 1534 GB more memory, than GeForce GT 640.
Both cards are used in Desktops.
GeForce GT 640 is build with Kepler architecture, and GeForce GTX 580 - with Fermi.
Core clock speed of GeForce GTX 580 is 642 MHz higher, than GeForce GT 640.
GeForce GT 640 is manufactured by 28 nm process technology, and GeForce GTX 580 - by 40 nm process technology.
GeForce GT 640 is 135 mm longer, than GeForce GTX 580.
Memory clock speed of GeForce GTX 580 is 222 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
21−24
ultra / 1080p
1−2
14−16
QHD / 1440p
0−1
8−9
4K / 2160p
−
6−7
low / 720p
14−16
40−45
medium / 1080p
5−6
27−30
The average gaming FPS of GeForce GTX 580 in Assassin's Creed Odyssey is 350% more, than GeForce GT 640.
high / 1080p
7−8
35−40
ultra / 1080p
5−6
30−35
QHD / 1440p
0−1
16−18
4K / 2160p
−
10−11
low / 720p
20−22
75−80
medium / 1080p
7−8
40−45
The average gaming FPS of GeForce GTX 580 in Battlefield 5 is 370% more, than GeForce GT 640.
low / 768p
50−55
50−55
high / 1080p
35−40
−
QHD / 1440p
0−1
0−1
GeForce GT 640 and GeForce GTX 580 have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
240−250
medium / 768p
90−95
210−220
ultra / 1080p
45−50
130−140
QHD / 1440p
24−27
100−110
4K / 2160p
18−20
55−60
high / 768p
65−70
180−190
The average gaming FPS of GeForce GTX 580 in Counter-Strike: Global Offensive is 157% more, than GeForce GT 640.
low / 768p
70−75
60−65
ultra / 1080p
21−24
55−60
medium / 1080p
45−50
55−60
The average gaming FPS of GeForce GTX 580 in Cyberpunk 2077 is 25% more, than GeForce GT 640.
low / 768p
70−75
120−130
medium / 768p
50−55
110−120
ultra / 1080p
27−30
85−90
The average gaming FPS of GeForce GTX 580 in Dota 2 is 113% more, than GeForce GT 640.
high / 1080p
3−4
27−30
ultra / 1080p
3−4
24−27
QHD / 1440p
−
21−24
4K / 2160p
2−3
9−10
low / 720p
14−16
55−60
medium / 1080p
4−5
30−35
The average gaming FPS of GeForce GTX 580 in Far Cry 5 is 500% more, than GeForce GT 640.
high / 1080p
10−12
35−40
ultra / 1080p
5−6
27−30
QHD / 1440p
2−3
18−20
low / 720p
50−55
130−140
medium / 1080p
16−18
80−85
The average gaming FPS of GeForce GTX 580 in Fortnite is 252% more, than GeForce GT 640.
high / 1080p
6−7
40−45
ultra / 1080p
−
30−33
QHD / 1440p
4−5
16−18
4K / 2160p
2−3
14−16
low / 720p
21−24
75−80
medium / 1080p
9−10
40−45
The average gaming FPS of GeForce GTX 580 in Forza Horizon 4 is 322% more, than GeForce GT 640.
low / 768p
45−50
110−120
medium / 768p
−
100−110
high / 1080p
7−8
45−50
ultra / 1080p
3−4
18−20
QHD / 1440p
0−1
10−11
medium / 720p
40−45
−
The average gaming FPS of GeForce GTX 580 in Grand Theft Auto V is 215% more, than GeForce GT 640.
high / 1080p
2−3
14−16
ultra / 1080p
0−1
12−14
QHD / 1440p
−
10−12
4K / 2160p
0−1
4−5
low / 720p
8−9
45−50
medium / 1080p
4−5
21−24
The average gaming FPS of GeForce GTX 580 in Metro Exodus is 460% more, than GeForce GT 640.
low / 768p
80−85
120−130
ultra / 1080p
70−75
−
medium / 1080p
−
110−120
The average gaming FPS of GeForce GTX 580 in Minecraft is 52% more, than GeForce GT 640.
ultra / 1080p
12−14
14−16
low / 720p
27−30
75−80
medium / 1080p
14−16
18−20
The average gaming FPS of GeForce GTX 580 in PLAYERUNKNOWN'S BATTLEGROUNDS is 105% more, than GeForce GT 640.
high / 1080p
6−7
16−18
ultra / 1080p
4−5
10−12
QHD / 1440p
0−1
3−4
4K / 2160p
−
2−3
low / 720p
7−8
45−50
medium / 1080p
−
21−24
The average gaming FPS of GeForce GTX 580 in Red Dead Redemption 2 is 316% more, than GeForce GT 640.
low / 768p
14−16
85−90
medium / 768p
10−11
50−55
high / 1080p
5−6
27−30
ultra / 1080p
4−5
16−18
4K / 2160p
0−1
9−10
The average gaming FPS of GeForce GTX 580 in The Witcher 3: Wild Hunt is 475% more, than GeForce GT 640.
low / 768p
70−75
90−95
medium / 768p
35−40
60−65
ultra / 1080p
16−18
45−50
high / 768p
30−35
55−60
The average gaming FPS of GeForce GTX 580 in World of Tanks is 66% more, than GeForce GT 640.
Full Specs
GeForce GT 640
GeForce GTX 580
Architecture
Kepler
Fermi
Code name
GK107
GF110
Type
Desktop
Desktop
Release date
5 June 2012
9 November 2010
Pipelines
384
512
Core clock speed
902 MHz
1544 MHz
Transistor count
1,270 million
3,000 million
Manufacturing process technology
28 nm
40 nm
Texture fill rate
28.86
49.4 billion/sec
Floating-point performance
692.7 gflops
1,581.1 gflops
Length
145 mm
10.5" (267 mm) (26.7 cm)
Memory bus width
128 Bit
384 Bit
Memory clock speed
1782 MHz
2004 MHz (4008 data rate)
Memory bandwidth
28.51 GB/s
192.4 GB/s
DirectX
12 (11_0)
12 (11_0)
Shader Model
5.1
5.1
OpenGL
4.6
4.2
OpenCL
1.2
1.1
Vulkan
1.1.126
N/A
CUDA
3.0
+
CUDA cores
512
Bus support
PCI-E 2.0 x 16
Height
4.376" (111 mm) (11.1 cm)
SLI options
+
Multi monitor support
+
HDMI
+
Maximum VGA resolution
2048x1536
Audio input for HDMI
Internal
Bitcoin / BTC (SHA256)
24 Mh/s
142 Mh/s
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