GeForce GT 640 vs Radeon 550X
When comparing GeForce GT 640 and Radeon 550X, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 640 and Radeon 550X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Radeon 550X
Main Specs
GeForce GT 640
Radeon 550X
Power consumption (TDP)
65 Watt
50 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
None
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
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GeForce GT 640 has 30% more power consumption, than Radeon 550X.
GeForce GT 640 is connected by PCIe 3.0 x16, and Radeon 550X uses PCIe 3.0 x8 interface.
GeForce GT 640 and Radeon 550X have maximum RAM of 2 GB.
Both cards are used in Desktops.
GeForce GT 640 is build with Kepler architecture, and Radeon 550X - with GCN 4.0.
Core clock speed of Radeon 550X is 180 MHz higher, than GeForce GT 640.
GeForce GT 640 is manufactured by 28 nm process technology, and Radeon 550X - by 14 nm process technology.
Both graphics cards are the same length of 145 mm.
Memory clock speed of Radeon 550X is 5218 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
7−8
ultra / 1080p
1−2
4−5
QHD / 1440p
0−1
0−1
low / 720p
14−16
16−18
medium / 1080p
5−6
9−10
The average gaming FPS of Radeon 550X in Assassin's Creed Odyssey is 50% more, than GeForce GT 640.
high / 1080p
7−8
12−14
ultra / 1080p
5−6
10−12
QHD / 1440p
0−1
0−1
low / 720p
20−22
24−27
medium / 1080p
7−8
12−14
The average gaming FPS of Radeon 550X in Battlefield 5 is 50% more, than GeForce GT 640.
low / 768p
50−55
45−50
high / 1080p
35−40
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon 550X in Call of Duty: Warzone is 4% more, than GeForce GT 640.
low / 768p
110−120
140−150
medium / 768p
90−95
110−120
ultra / 1080p
45−50
55−60
QHD / 1440p
24−27
30−35
4K / 2160p
18−20
27−30
high / 768p
65−70
85−90
The average gaming FPS of Radeon 550X in Counter-Strike: Global Offensive is 26% more, than GeForce GT 640.
low / 768p
70−75
55−60
ultra / 1080p
21−24
20−22
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 11% more, than Radeon 550X.
low / 768p
70−75
80−85
medium / 768p
50−55
60−65
ultra / 1080p
27−30
35−40
The average gaming FPS of Radeon 550X in Dota 2 is 17% more, than GeForce GT 640.
high / 1080p
3−4
8−9
ultra / 1080p
3−4
8−9
4K / 2160p
2−3
4−5
low / 720p
14−16
20−22
medium / 1080p
4−5
9−10
The average gaming FPS of Radeon 550X in Far Cry 5 is 100% more, than GeForce GT 640.
high / 1080p
10−12
14−16
ultra / 1080p
5−6
10−12
QHD / 1440p
2−3
−
low / 720p
50−55
60−65
medium / 1080p
16−18
24−27
The average gaming FPS of Radeon 550X in Fortnite is 33% more, than GeForce GT 640.
high / 1080p
6−7
12−14
ultra / 1080p
−
10−12
QHD / 1440p
4−5
1−2
4K / 2160p
2−3
−
low / 720p
21−24
27−30
medium / 1080p
9−10
14−16
The average gaming FPS of Radeon 550X in Forza Horizon 4 is 40% more, than GeForce GT 640.
low / 768p
45−50
55−60
medium / 768p
−
45−50
high / 1080p
7−8
12−14
ultra / 1080p
3−4
6−7
QHD / 1440p
0−1
0−1
medium / 720p
40−45
−
The average gaming FPS of Radeon 550X in Grand Theft Auto V is 31% more, than GeForce GT 640.
high / 1080p
2−3
5−6
ultra / 1080p
0−1
3−4
4K / 2160p
0−1
0−1
low / 720p
8−9
12−14
medium / 1080p
4−5
7−8
The average gaming FPS of Radeon 550X in Metro Exodus is 60% more, than GeForce GT 640.
low / 768p
80−85
95−100
high / 1080p
−
90−95
ultra / 1080p
70−75
80−85
medium / 1080p
−
90−95
The average gaming FPS of Radeon 550X in Minecraft is 16% more, than GeForce GT 640.
high / 1080p
−
16−18
ultra / 1080p
12−14
14−16
low / 720p
27−30
30−35
medium / 1080p
14−16
18−20
The average gaming FPS of Radeon 550X in PLAYERUNKNOWN'S BATTLEGROUNDS is 22% more, than GeForce GT 640.
high / 1080p
6−7
−
ultra / 1080p
4−5
7−8
QHD / 1440p
0−1
0−1
low / 720p
7−8
12−14
medium / 1080p
−
10−12
The average gaming FPS of Radeon 550X in Red Dead Redemption 2 is 66% more, than GeForce GT 640.
low / 768p
14−16
24−27
medium / 768p
10−11
16−18
high / 1080p
5−6
10−11
ultra / 1080p
4−5
6−7
4K / 2160p
0−1
6−7
The average gaming FPS of Radeon 550X in The Witcher 3: Wild Hunt is 75% more, than GeForce GT 640.
low / 768p
70−75
85−90
medium / 768p
35−40
45−50
ultra / 1080p
16−18
20−22
high / 768p
30−35
35−40
The average gaming FPS of Radeon 550X in World of Tanks is 23% more, than GeForce GT 640.
Full Specs
GeForce GT 640
Radeon 550X
Architecture
Kepler
GCN 4.0
Code name
GK107
Lexa
Type
Desktop
Desktop
Release date
5 June 2012
27 March 2019
Pipelines
384
512
Core clock speed
902 MHz
1082 MHz
Boost Clock
1218 MHz
Transistor count
1,270 million
2,200 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
28.86
38.98
Floating-point performance
692.7 gflops
Length
145 mm
145 mm
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
7000 MHz
Memory bandwidth
28.51 GB/s
112.0 GB/s
DirectX
12 (11_0)
12 (12_0)
Shader Model
5.1
6.4
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
1.1.126
1.2.131
CUDA
3.0
Bitcoin / BTC (SHA256)
24 Mh/s
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