GeForce GT 640 vs Radeon RX 550 mobile
If you are going to buy a new graphics card and are choosing between GeForce GT 640 and Radeon RX 550 mobile, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GT 640 stacks up against Radeon RX 550 mobile, check out specs charts below.
Radeon RX 550 mobile is a Laptop Graphics Card
Note: Radeon RX 550 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 550 mobile here:
Main Specs
GeForce GT 640
Radeon RX 550 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 550 mobile.
GeForce GT 640 is connected by PCIe 3.0 x16, and Radeon RX 550 mobile uses PCIe 3.0 x8 interface.
Radeon RX 550 mobile has 2 GB more memory, than GeForce GT 640.
GeForce GT 640 is used in Desktops, and Radeon RX 550 mobile - in Laptops.
GeForce GT 640 is build with Kepler architecture, and Radeon RX 550 mobile - with Polaris.
Core clock speed of Radeon RX 550 mobile is 385 MHz higher, than GeForce GT 640.
GeForce GT 640 is manufactured by 28 nm process technology, and Radeon RX 550 mobile - by 14 nm process technology.
Memory clock speed of Radeon RX 550 mobile is 4218 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
18−20
ultra / 1080p
1−2
10−12
QHD / 1440p
0−1
5−6
4K / 2160p
−
4−5
low / 720p
14−16
35−40
medium / 1080p
5−6
24−27
The average gaming FPS of Radeon RX 550 mobile in Assassin's Creed Odyssey is 283% more, than GeForce GT 640.
high / 1080p
7−8
30−33
ultra / 1080p
5−6
24−27
QHD / 1440p
0−1
10−11
4K / 2160p
−
7−8
low / 720p
20−22
60−65
medium / 1080p
7−8
30−35
The average gaming FPS of Radeon RX 550 mobile in Battlefield 5 is 280% 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 Radeon RX 550 mobile have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
220−230
medium / 768p
90−95
190−200
ultra / 1080p
45−50
110−120
QHD / 1440p
24−27
80−85
4K / 2160p
18−20
40−45
high / 768p
65−70
160−170
The average gaming FPS of Radeon RX 550 mobile in Counter-Strike: Global Offensive is 124% more, than GeForce GT 640.
low / 768p
70−75
60−65
ultra / 1080p
21−24
45−50
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon RX 550 mobile in Cyberpunk 2077 is 17% more, than GeForce GT 640.
low / 768p
70−75
110−120
medium / 768p
50−55
100−110
ultra / 1080p
27−30
75−80
The average gaming FPS of Radeon RX 550 mobile in Dota 2 is 94% more, than GeForce GT 640.
high / 1080p
3−4
21−24
ultra / 1080p
3−4
21−24
QHD / 1440p
−
18−20
4K / 2160p
2−3
7−8
low / 720p
14−16
50−55
medium / 1080p
4−5
24−27
The average gaming FPS of Radeon RX 550 mobile in Far Cry 5 is 420% more, than GeForce GT 640.
high / 1080p
10−12
30−35
ultra / 1080p
5−6
21−24
QHD / 1440p
2−3
14−16
low / 720p
50−55
110−120
medium / 1080p
16−18
65−70
The average gaming FPS of Radeon RX 550 mobile in Fortnite is 194% more, than GeForce GT 640.
high / 1080p
6−7
30−35
ultra / 1080p
−
24−27
QHD / 1440p
4−5
12−14
4K / 2160p
2−3
12−14
low / 720p
21−24
65−70
medium / 1080p
9−10
35−40
The average gaming FPS of Radeon RX 550 mobile in Forza Horizon 4 is 255% more, than GeForce GT 640.
low / 768p
45−50
100−105
medium / 768p
−
90−95
high / 1080p
7−8
35−40
ultra / 1080p
3−4
14−16
QHD / 1440p
0−1
6−7
medium / 720p
40−45
−
The average gaming FPS of Radeon RX 550 mobile in Grand Theft Auto V is 168% more, than GeForce GT 640.
high / 1080p
2−3
12−14
ultra / 1080p
0−1
9−10
4K / 2160p
0−1
2−3
low / 720p
8−9
35−40
medium / 1080p
4−5
16−18
The average gaming FPS of Radeon RX 550 mobile in Metro Exodus is 340% more, than GeForce GT 640.
low / 768p
80−85
110−120
ultra / 1080p
70−75
−
medium / 1080p
−
110−120
The average gaming FPS of Radeon RX 550 mobile in Minecraft is 40% more, than GeForce GT 640.
ultra / 1080p
12−14
14−16
low / 720p
27−30
65−70
medium / 1080p
14−16
18−20
The average gaming FPS of Radeon RX 550 mobile in PLAYERUNKNOWN'S BATTLEGROUNDS is 83% more, than GeForce GT 640.
high / 1080p
6−7
14−16
ultra / 1080p
4−5
10−11
QHD / 1440p
0−1
1−2
4K / 2160p
−
0−1
low / 720p
7−8
35−40
medium / 1080p
−
20−22
The average gaming FPS of Radeon RX 550 mobile in Red Dead Redemption 2 is 250% more, than GeForce GT 640.
low / 768p
14−16
70−75
medium / 768p
10−11
40−45
high / 1080p
5−6
24−27
ultra / 1080p
4−5
12−14
4K / 2160p
0−1
7−8
The average gaming FPS of Radeon RX 550 mobile in The Witcher 3: Wild Hunt is 375% more, than GeForce GT 640.
low / 768p
70−75
90−95
medium / 768p
35−40
60−65
ultra / 1080p
16−18
40−45
high / 768p
30−35
55−60
The average gaming FPS of Radeon RX 550 mobile in World of Tanks is 61% more, than GeForce GT 640.
Full Specs
GeForce GT 640
Radeon RX 550 mobile
Architecture
Kepler
Polaris
Code name
GK107
Polaris 12
Type
Desktop
Laptop
Release date
5 June 2012
21 March 2017
Pipelines
384
640
Core clock speed
902 MHz
1287 MHz
Boost Clock
1476 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
1,647 gflops
Length
145 mm
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
6000 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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