Radeon HD 8490 OEM and Radeon RX 6400 - video card comparison

Radeon HD 8490 OEM

Radeon RX 6400

Architecture

TeraScale 2 (2009−2015)

RDNA 2.0 (2020−2022)

GPU code name

Caicos

Navi 24

Market segment

Desktop

Release date

July 2013

January 2022

Interface

PCIe 2.0 x16

PCIe 4.0 x4

Supplementary power connectors

None

Boost clock speed

2321 MHz

Core clock speed

875 MHz

Floating-point performance

280.0 gflops

Manufacturing process technology

40 nm

6 nm

Number of transistors

370 million

5,400 million

Pipelines / CUDA cores

160

768

Power consumption (TDP)

35 Watt

53 Watt

Texture fill rate

7.000

111.4

Memory type

DDR3

GDDR6

Maximum RAM amount

1 GB

4 GB

Memory bus width

64 Bit

Memory clock speed

1800 MHz

16 GB/s

Memory bandwidth

14.4 GB/s

128.0 GB/s

Display Connectors

1x DVI, 1x DisplayPort

1x HDMI 2.1, 1x DisplayPort 1.4a

HDMI

DirectX

11.2 (11_0)

12 Ultimate (12_2)

OpenCL

1.2

2.2

OpenGL

4.4

4.6

Shader Model

5.0

6.6

Vulkan

N/A

1.3