Radeon R9 255 OEM and Radeon RX 7950 XTX - video card comparison

Radeon R9 255 OEM

Radeon RX 7950 XTX

Architecture

GCN 1.0 (2012−2020)

RDNA 3.0 (2022)

GPU code name

Cape Verde

Navi 31

Market segment

Desktop

Release date

December 2013

Interface

PCIe 3.0 x16

PCIe 4.0 x16

Supplementary power connectors

1x 6-pin

2x 8-pin

Boost clock speed

930 MHz

3300 MHz

Core clock speed

900 MHz

Floating-point performance

952.3 gflops

Manufacturing process technology

28 nm

5 nm

Number of transistors

1,500 million

57,700 million

Pipelines / CUDA cores

512

6144

Power consumption (TDP)

65 Watt

355 Watt

Texture fill rate

29.76

1,267

Memory type

GDDR5

GDDR6

Maximum RAM amount

2 GB

24 GB

Memory bus width

128 Bit

384 Bit

Memory clock speed

4600 MHz

20 GB/s

Memory bandwidth

73.6 GB/s

960.0 GB/s

Display Connectors

No outputs

1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C

HDMI

DirectX

12 (11_1)

12 Ultimate (12_2)

OpenCL

1.2

2.2

OpenGL

4.6

Shader Model

5.1

6.7

Vulkan

1.2.131

1.3