Radeon RX 640 vs Radeon RX Vega 8
If you are going to buy a new graphics card and are choosing between Radeon RX 640 and Radeon RX Vega 8, 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 Radeon RX 640 stacks up against Radeon RX Vega 8, check out specs charts below.
Radeon RX 640 and Radeon RX Vega 8 are Laptop Graphics Cards
Note: Radeon RX 640 and Radeon RX Vega 8 are only used in laptop graphics. They have 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 640 or Radeon RX Vega 8 here:
Main Specs
Radeon RX 640
Radeon RX Vega 8
Power consumption (TDP)
50 Watt
Interface
PCIe 3.0 x8
Supplementary power connectors
None
Memory type
GDDR5
Maximum RAM amount
4 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
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Both cards are used in Laptops.
Radeon RX 640 is build with Polaris architecture, and Radeon RX Vega 8 - with Vega.
Radeon RX 640 and Radeon RX Vega 8 are manufactured by 14 nm process technology.
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
5−6
8−9
ultra / 1080p
3−4
5−6
QHD / 1440p
2−3
0−1
low / 720p
16−18
18−20
medium / 1080p
7−8
10−11
The average gaming FPS of Radeon RX Vega 8 in Assassin's Creed Odyssey is 25% more, than Radeon RX 640.
high / 1080p
10−12
14−16
ultra / 1080p
8−9
12−14
QHD / 1440p
0−1
0−1
low / 720p
24−27
30−33
medium / 1080p
10−12
14−16
The average gaming FPS of Radeon RX Vega 8 in Battlefield 5 is 28% more, than Radeon RX 640.
low / 768p
45−50
45−50
high / 1080p
40−45
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon RX Vega 8 in Call of Duty: Warzone is 4% more, than Radeon RX 640.
low / 768p
130−140
150−160
medium / 768p
100−110
120−130
ultra / 1080p
50−55
60−65
QHD / 1440p
27−30
35−40
4K / 2160p
12−14
27−30
high / 768p
80−85
90−95
The average gaming FPS of Radeon RX Vega 8 in Counter-Strike: Global Offensive is 20% more, than Radeon RX 640.
low / 768p
50−55
55−60
ultra / 1080p
18−20
21−24
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon RX Vega 8 in Cyberpunk 2077 is 7% more, than Radeon RX 640.
low / 768p
80−85
85−90
medium / 768p
55−60
65−70
ultra / 1080p
30−35
40−45
The average gaming FPS of Radeon RX Vega 8 in Dota 2 is 14% more, than Radeon RX 640.
high / 1080p
7−8
10−11
ultra / 1080p
5−6
9−10
4K / 2160p
5−6
4−5
low / 720p
18−20
21−24
medium / 1080p
8−9
10−11
The average gaming FPS of Radeon RX Vega 8 in Far Cry 5 is 22% more, than Radeon RX 640.
high / 1080p
7−8
16−18
ultra / 1080p
0−1
12−14
QHD / 1440p
0−1
−
low / 720p
60−65
65−70
medium / 1080p
18−20
27−30
The average gaming FPS of Radeon RX Vega 8 in Fortnite is 27% more, than Radeon RX 640.
high / 1080p
10−11
14−16
ultra / 1080p
−
12−14
QHD / 1440p
−
2−3
4K / 2160p
8−9
−
low / 720p
24−27
30−35
medium / 1080p
12−14
16−18
The average gaming FPS of Radeon RX Vega 8 in Forza Horizon 4 is 31% more, than Radeon RX 640.
low / 768p
50−55
55−60
medium / 768p
−
50−55
high / 1080p
10−12
14−16
ultra / 1080p
5−6
7−8
QHD / 1440p
−
0−1
medium / 720p
45−50
−
The average gaming FPS of Radeon RX Vega 8 in Grand Theft Auto V is 13% more, than Radeon RX 640.
high / 1080p
3−4
5−6
ultra / 1080p
1−2
4−5
4K / 2160p
−
1−2
low / 720p
10−11
14−16
medium / 1080p
5−6
7−8
The average gaming FPS of Radeon RX Vega 8 in Metro Exodus is 60% more, than Radeon RX 640.
low / 768p
90−95
95−100
high / 1080p
−
90−95
ultra / 1080p
80−85
85−90
medium / 1080p
−
95−100
The average gaming FPS of Radeon RX Vega 8 in Minecraft is 5% more, than Radeon RX 640.
high / 1080p
6−7
18−20
ultra / 1080p
2−3
14−16
4K / 2160p
0−1
−
low / 720p
27−30
35−40
medium / 1080p
10−11
18−20
The average gaming FPS of Radeon RX Vega 8 in PLAYERUNKNOWN'S BATTLEGROUNDS is 83% more, than Radeon RX 640.
ultra / 1080p
−
8−9
QHD / 1440p
−
0−1
low / 720p
10−12
14−16
medium / 1080p
9−10
12−14
The average gaming FPS of Radeon RX Vega 8 in Red Dead Redemption 2 is 40% more, than Radeon RX 640.
low / 768p
21−24
30−33
medium / 768p
14−16
20−22
high / 1080p
6−7
10−12
ultra / 1080p
4−5
7−8
4K / 2160p
3−4
6−7
The average gaming FPS of Radeon RX Vega 8 in The Witcher 3: Wild Hunt is 50% more, than Radeon RX 640.
low / 768p
75−80
90−95
medium / 768p
40−45
45−50
ultra / 1080p
18−20
21−24
high / 768p
35−40
40−45
The average gaming FPS of Radeon RX Vega 8 in World of Tanks is 15% more, than Radeon RX 640.
Full Specs
Radeon RX 640
Radeon RX Vega 8
Architecture
Polaris
Vega
Code name
Polaris 12
Vega Raven Ridge
Type
Laptop
Laptop
Release date
12 August 2019
26 October 2017
Pipelines
640
512
Core clock speed
1218 MHz
Boost Clock
1218 MHz
1200 MHz
Transistor count
2,200 million
Manufacturing process technology
14 nm
14 nm
Texture fill rate
38.98
Memory bus width
64 Bit
Memory clock speed
6000 MHz
Memory bandwidth
112.0 GB/s
Shared memory
-
-
DirectX
12 (12_0)
DirectX 12_1
Shader Model
6.4
OpenGL
4.6
OpenCL
2.0
Vulkan
1.2.131
FreeSync
+
Laptop size
large
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