Radeon RX 580G and Radeon RX 6600M - video card comparison

Radeon RX 580G

Radeon RX 6600M

Architecture

GCN 4.0 (2016−2020)

RDNA 2 (2020−2022)

GPU code name

Polaris 20

R21M-E65-70

Market segment

Desktop

Laptop

Release date

October 2018

September 2020

Interface

PCIe 3.0 x16

PCIe 4.0 x8

Supplementary power connectors

1x 8-pin

None

Boost clock speed

1330 MHz

2177 MHz

Core clock speed

1257 MHz

2068 MHz

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

191.5

235.8

Memory type

GDDR5

GDDR6

Maximum RAM amount

8 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

8000 MHz

14000 MHz

Memory bandwidth

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

Shader Model

6.4

6.5

Vulkan

1.2.131

1.2