Radeon R9 255 OEM and M1 - video card comparison

Radeon R9 255 OEM

M1

Architecture

GCN 1.0 (2012−2020)

Rage 4 (1998−1999)

GPU code name

Cape Verde

M1

Market segment

Desktop

Desktop

Release date

December 2013

-

Interface

PCIe 3.0 x16

-

Supplementary power connectors

1x 6-pin

-

Boost clock speed

930 MHz

-

Core clock speed

900 MHz

-

Floating-point performance

952.3 gflops

-

Manufacturing process technology

28 nm

250 nm

Number of transistors

1,500 million

8 million

Pipelines / CUDA cores

512

-

Power consumption (TDP)

65 Watt

-

Texture fill rate

29.76

-

Memory type

GDDR5

-

Maximum RAM amount

2 GB

-

Memory bus width

128 Bit

-

Memory clock speed

4600 MHz

-

Memory bandwidth

73.6 GB/s

-

Display Connectors

No outputs

-

DirectX

12 (11_1)

6.0

OpenCL

1.2

N/A

OpenGL

4.6

1.2

Shader Model

5.1

-

Vulkan

1.2.131

N/A