Radeon RX 580 Mobile and GeForce 820A - video card comparison
Radeon RX 580 Mobile
GeForce 820A
Architecture
Polaris (2016−2019)
Fermi 2.0 (2010−2014)
GPU code name
Polaris
GF117
Market segment
Laptop
Desktop
Release date
April 2017
March 2014
Interface
MXM-B (3.0)
PCIe 2.0 x16
Boost clock speed
1077 MHz
-
Core clock speed
1000 MHz
775 MHz
Floating-point performance
4,963 gflops
297.6 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
5,700 million
585 million
Pipelines / CUDA cores
2304
96
Power consumption (TDP)
100 Watt
15 Watt
Texture fill rate
155.1
12.40
Memory type
GDDR5
DDR3
Maximum RAM amount
8 GB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
8000 MHz
1800 MHz
Memory bandwidth
256.0 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_0)
12 (11_0)
CUDA
-
2.1
OpenCL
2.0
1.1
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.2.131
N/A