Radeon RX 580 Mobile and Radeon RX 6600 XT - video card comparison

Radeon RX 580 Mobile

Radeon RX 6600 XT

Architecture

Polaris (2016−2019)

Navi / RDNA2 (2020−2022)

GPU code name

Polaris

Navi 23

Market segment

Laptop

Desktop

Release date

April 2017

July 2021

Interface

MXM-B (3.0)

PCIe 4.0 x8

Supplementary power connectors

1x 8-pin

Boost clock speed

1077 MHz

2589 MHz

Core clock speed

1000 MHz

1968 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

2048

Power consumption (TDP)

100 Watt

160 (TGP) Watt

Texture fill rate

155.1

331.4

Memory type

GDDR5

GDDR6

Maximum RAM amount

8 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

8000 MHz

16000 MHz

Memory bandwidth

256.0 GB/s

Shared memory

Display Connectors

No outputs

1x HDMI, 2x DisplayPort

HDMI

DirectX

12 (12_0)

12.0 Ultimate (12_2)

OpenCL

2.0

2.1

OpenGL

4.6

Shader Model

6.4

6.5

Vulkan

1.2.131

1.2