Radeon R9 280X2 and RTX A400 - video card comparison

Radeon R9 280X2

RTX A400

Architecture

GCN 1.0 (2012−2020)

Ampere (2020−2022)

GPU code name

Tahiti

GA107

Market segment

Desktop

Desktop

Release date

-

April 2024

Interface

PCIe 3.0 x16

PCIe 4.0 x8

Supplementary power connectors

3x 8-pin

None

Boost clock speed

1000 MHz

1762 MHz

Manufacturing process technology

28 nm

8 nm

Number of transistors

4,313 million

8,700 million

Pipelines / CUDA cores

2048

768

Power consumption (TDP)

375 Watt

50 Watt

Texture fill rate

128.0

42.29

Memory type

GDDR5

GDDR6

Maximum RAM amount

3 GB

4 GB

Memory bus width

384 Bit

64 Bit

Memory clock speed

6 GB/s

12 GB/s

Memory bandwidth

288.0 GB/s

96 GB/s

Display Connectors

6x mini-DisplayPort 1.2

4x mini-DisplayPort 1.4a

DirectX

12 (11_1)

12 Ultimate (12_2)

CUDA

-

8.6

OpenCL

2.1 (1.2)

3.0

OpenGL

4.6

4.6

Shader Model

6.5 (5.1)

6.7

Vulkan

1.2.170

1.3