Radeon RX 580 Mobile and Radeon RX 6600M - video card comparison
Radeon RX 580 Mobile
Radeon RX 6600M
Architecture
Polaris (2016−2019)
RDNA 2 (2020−2022)
GPU code name
Polaris
R21M-E65-70
Market segment
Laptop
Laptop
Release date
April 2017
September 2020
Interface
MXM-B (3.0)
PCIe 4.0 x8
Supplementary power connectors
-
None
Boost clock speed
1077 MHz
2177 MHz
Core clock speed
1000 MHz
2068 MHz
Floating-point performance
4,963 gflops
-
Manufacturing process technology
14 nm
7 nm
Number of transistors
5,700 million
11,060 million
Pipelines / CUDA cores
2304
1792
Power consumption (TDP)
100 Watt
100 Watt (50 - 100 Watt TGP)
Texture fill rate
155.1
235.8
Memory type
GDDR5
GDDR6
Maximum RAM amount
8 GB
8 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
8000 MHz
14000 MHz
Memory bandwidth
256.0 GB/s
256.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenCL
2.0
2.1
OpenGL
4.6
4.6
Shader Model
6.4
6.5
Vulkan
1.2.131
1.2