GeForce GT 640 vs Radeon RX 550X mobile
When comparing GeForce GT 640 and Radeon RX 550X mobile, 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 RX 550X mobile is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Radeon RX 550X mobile is a Laptop Graphics Card
Note: Radeon RX 550X mobile 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 Radeon RX 550X mobile here:
Main Specs
GeForce GT 640
Radeon RX 550X mobile
Power consumption (TDP)
65 Watt
50 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
4 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
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GeForce GT 640 has 30% more power consumption, than Radeon RX 550X mobile.
GeForce GT 640 is connected by PCIe 3.0 x16, and Radeon RX 550X mobile uses PCIe 3.0 x8 interface.
Radeon RX 550X mobile has 2 GB more memory, than GeForce GT 640.
GeForce GT 640 is used in Desktops, and Radeon RX 550X mobile - in Laptops.
GeForce GT 640 is build with Kepler architecture, and Radeon RX 550X mobile - with Polaris.
Core clock speed of Radeon RX 550X mobile is 274 MHz higher, than GeForce GT 640.
GeForce GT 640 is manufactured by 28 nm process technology, and Radeon RX 550X mobile - by 14 nm process technology.
Memory clock speed of Radeon RX 550X mobile 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
14−16
ultra / 1080p
1−2
9−10
QHD / 1440p
0−1
3−4
low / 720p
14−16
30−35
medium / 1080p
5−6
20−22
The average gaming FPS of Radeon RX 550X mobile in Assassin's Creed Odyssey is 216% more, than GeForce GT 640.
high / 1080p
7−8
24−27
ultra / 1080p
5−6
21−24
QHD / 1440p
0−1
4−5
low / 720p
20−22
55−60
medium / 1080p
7−8
27−30
The average gaming FPS of Radeon RX 550X mobile in Battlefield 5 is 230% more, than GeForce GT 640.
low / 768p
50−55
50−55
high / 1080p
35−40
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon RX 550X mobile in Call of Duty: Warzone is 11% more, than GeForce GT 640.
low / 768p
110−120
210−220
medium / 768p
90−95
180−190
ultra / 1080p
45−50
100−105
QHD / 1440p
24−27
55−60
4K / 2160p
18−20
27−30
high / 768p
65−70
140−150
The average gaming FPS of Radeon RX 550X mobile in Counter-Strike: Global Offensive is 100% more, than GeForce GT 640.
low / 768p
70−75
60−65
ultra / 1080p
21−24
40−45
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon RX 550X mobile in Cyberpunk 2077 is 14% more, than GeForce GT 640.
low / 768p
70−75
110−120
medium / 768p
50−55
95−100
ultra / 1080p
27−30
65−70
The average gaming FPS of Radeon RX 550X mobile in Dota 2 is 82% more, than GeForce GT 640.
high / 1080p
3−4
18−20
ultra / 1080p
3−4
16−18
4K / 2160p
2−3
6−7
low / 720p
14−16
40−45
medium / 1080p
4−5
21−24
The average gaming FPS of Radeon RX 550X mobile in Far Cry 5 is 320% more, than GeForce GT 640.
high / 1080p
10−12
24−27
ultra / 1080p
5−6
20−22
QHD / 1440p
2−3
12−14
low / 720p
50−55
100−110
medium / 1080p
16−18
55−60
The average gaming FPS of Radeon RX 550X mobile in Fortnite is 158% more, than GeForce GT 640.
high / 1080p
6−7
27−30
ultra / 1080p
−
21−24
QHD / 1440p
4−5
9−10
4K / 2160p
2−3
−
low / 720p
21−24
55−60
medium / 1080p
9−10
30−35
The average gaming FPS of Radeon RX 550X mobile in Forza Horizon 4 is 220% more, than GeForce GT 640.
low / 768p
45−50
90−95
medium / 768p
−
80−85
high / 1080p
7−8
30−35
ultra / 1080p
3−4
12−14
QHD / 1440p
0−1
3−4
medium / 720p
40−45
−
The average gaming FPS of Radeon RX 550X mobile in Grand Theft Auto V is 142% more, than GeForce GT 640.
high / 1080p
2−3
10−11
ultra / 1080p
0−1
7−8
4K / 2160p
0−1
1−2
low / 720p
8−9
30−35
medium / 1080p
4−5
12−14
The average gaming FPS of Radeon RX 550X mobile in Metro Exodus is 260% more, than GeForce GT 640.
low / 768p
80−85
110−120
ultra / 1080p
70−75
100−110
medium / 1080p
−
100−110
The average gaming FPS of Radeon RX 550X mobile in Minecraft is 42% more, than GeForce GT 640.
ultra / 1080p
12−14
14−16
low / 720p
27−30
60−65
medium / 1080p
14−16
18−20
The average gaming FPS of Radeon RX 550X mobile in PLAYERUNKNOWN'S BATTLEGROUNDS is 77% more, than GeForce GT 640.
high / 1080p
6−7
12−14
ultra / 1080p
4−5
8−9
QHD / 1440p
0−1
0−1
low / 720p
7−8
30−33
medium / 1080p
−
16−18
The average gaming FPS of Radeon RX 550X mobile in Red Dead Redemption 2 is 183% more, than GeForce GT 640.
low / 768p
14−16
55−60
medium / 768p
10−11
35−40
high / 1080p
5−6
20−22
ultra / 1080p
4−5
10−12
4K / 2160p
0−1
6−7
The average gaming FPS of Radeon RX 550X mobile in The Witcher 3: Wild Hunt is 287% more, than GeForce GT 640.
low / 768p
70−75
90−95
medium / 768p
35−40
60−65
ultra / 1080p
16−18
35−40
high / 768p
30−35
50−55
The average gaming FPS of Radeon RX 550X mobile in World of Tanks is 56% more, than GeForce GT 640.
Full Specs
GeForce GT 640
Radeon RX 550X mobile
Architecture
Kepler
Polaris
Code name
GK107
Polaris 12
Type
Desktop
Laptop
Release date
5 June 2012
10 January 2019
Pipelines
384
640
Core clock speed
902 MHz
1176 MHz
Boost Clock
1287 MHz
Transistor count
1,270 million
2,200 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
28.86
51.48
Floating-point performance
692.7 gflops
Length
145 mm
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
7000 MHz
Memory bandwidth
28.51 GB/s
96 GB/s
Shared memory
-
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
FreeSync
+
Bitcoin / BTC (SHA256)
24 Mh/s
Laptop size
large
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