Radeon R9 290X2 and Radeon RX 6400 - video card comparison

Radeon R9 290X2

Radeon RX 6400

Architecture

GCN 2.0 (2013−2017)

RDNA 2.0 (2020−2022)

GPU code name

Hawaii

Navi 24

Market segment

Desktop

Desktop

Release date

June 2014

January 2022

Interface

PCIe 3.0 x16

PCIe 4.0 x4

Supplementary power connectors

4x 8-pin

None

Boost clock speed

-

2321 MHz

Core clock speed

1000 MHz

-

Floating-point performance

2x 5,632 gflops

-

Manufacturing process technology

28 nm

6 nm

Number of transistors

6,200 million

5,400 million

Pipelines / CUDA cores

2816

768

Power consumption (TDP)

580 Watt

53 Watt

Texture fill rate

176.0

111.4

Memory type

GDDR5

GDDR6

Maximum RAM amount

4 GB

4 GB

Memory bus width

512 Bit

64 Bit

Memory clock speed

5400 MHz

16 GB/s

Memory bandwidth

345.6 GB/s

128.0 GB/s

Display Connectors

2x DVI, 1x HDMI, 1x DisplayPort

1x HDMI 2.1, 1x DisplayPort 1.4a

HDMI

+

+

DirectX

12 (12_0)

12 Ultimate (12_2)

OpenCL

2.0

2.2

OpenGL

4.6

4.6

Shader Model

6.3

6.6

Vulkan

1.2.131

1.3