Radeon RX 580 and Radeon RX 6600M - video card comparison
Passmark - benchmark score Radeon RX 580 vs Radeon RX 6600M
Radeon RX 580
9140
Radeon RX 6600M
14089
Radeon RX 580
Radeon RX 6600M
Architecture
Polaris (2016−2019)
RDNA 2 (2020−2022)
GPU code name
Polaris 20
R21M-E65-70
Market segment
Desktop
Laptop
Release date
April 2017
September 2020
Interface
PCIe 3.0 x16
PCIe 4.0 x8
Supplementary power connectors
1x 8-pin
None
Boost clock speed
1340 MHz
2177 MHz
Core clock speed
1257 MHz
2068 MHz
Floating-point performance
6,175 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)
185 Watt
100 Watt (50 - 100 Watt TGP)
Texture fill rate
193.0
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
1x HDMI, 3x DisplayPort
No outputs
HDMI
+
-
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