Radeon RX 580 Mobile and Radeon 620 - video card comparison
Radeon RX 580 Mobile
Radeon 620
Architecture
Polaris (2016−2019)
GCN 1.0 (2012−2020)
GPU code name
Polaris
Polaris 24
Market segment
Laptop
Laptop
Release date
April 2017
August 2019
Interface
MXM-B (3.0)
PCIe 3.0 x8
Supplementary power connectors
-
None
Boost clock speed
1077 MHz
1024 MHz
Core clock speed
1000 MHz
-
Floating-point performance
4,963 gflops
-
Manufacturing process technology
14 nm
28 nm
Number of transistors
5,700 million
1,550 million
Pipelines / CUDA cores
2304
384
Power consumption (TDP)
100 Watt
50 Watt
Texture fill rate
155.1
24.58
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
8 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
8000 MHz
2250 MHz
Memory bandwidth
256.0 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_0)
12 (12_0)
OpenCL
2.0
2.0
OpenGL
4.6
4.6
Shader Model
6.4
6.3
Vulkan
1.2.131
1.2.131