Radeon R9 M270 and Radeon RX 6400 - video card comparison

Radeon R9 M270

Radeon RX 6400

Architecture

GCN (2011−2017)

RDNA 2.0 (2020−2022)

GPU code name

Navi 24

Market segment

Laptop

Desktop

Release date

April 2014

January 2022

Interface

PCIe 4.0 x4

Supplementary power connectors

None

Boost clock speed

2321 MHz

Core clock speed

725 MHz

Manufacturing process technology

28 nm

6 nm

Number of transistors

1500 Million

5,400 million

Pipelines / CUDA cores

640

768

Power consumption (TDP)

53 Watt

Texture fill rate

111.4

Memory type

GDDR5

GDDR6

Maximum RAM amount

4 GB

Memory bus width

128 Bit

64 Bit

Memory clock speed

4500 MHz

16 GB/s

Memory bandwidth

128.0 GB/s

Shared memory

Display Connectors

1x HDMI 2.1, 1x DisplayPort 1.4a

HDMI

DirectX

12 (FL 11_1)

12 Ultimate (12_2)

OpenCL

2.2

OpenGL

4.6

Shader Model

6.6

Vulkan

1.3