Radeon RX 590 GME and Radeon RX 6400 - video card comparison

Radeon RX 590 GME

Radeon RX 6400

Architecture

GCN 4.0 (2016−2020)

RDNA 2.0 (2020−2022)

GPU code name

Polaris 20

Navi 24

Market segment

Desktop

Release date

March 2020

January 2022

Interface

PCIe 3.0 x16

PCIe 4.0 x4

Supplementary power connectors

1x 8-pin

None

Boost clock speed

1420 MHz

2321 MHz

Manufacturing process technology

14 nm

6 nm

Number of transistors

5,700 million

5,400 million

Pipelines / CUDA cores

2304

768

Power consumption (TDP)

175 Watt

53 Watt

Texture fill rate

204.5

111.4

Memory type

GDDR5

GDDR6

Maximum RAM amount

8 GB

4 GB

Memory bus width

256 Bit

64 Bit

Memory clock speed

8 GB/s

16 GB/s

Memory bandwidth

256.0 GB/s

128.0 GB/s

Display Connectors

1x HDMI 2.0b, 3x DisplayPort 1.4a

1x HDMI 2.1, 1x DisplayPort 1.4a

HDMI

DirectX

12 (12_0)

12 Ultimate (12_2)

OpenCL

2.1

2.2

OpenGL

4.6

Shader Model

6.7

6.6

Vulkan

1.3