Radeon R5 A255 and C61 - video card comparison

Radeon R5 A255

C61

Architecture

GCN 3.0 (2014−2017)

Curie (2003−2013)

GPU code name

Topaz

C61

Market segment

Desktop

Desktop

Release date

2014

-

Interface

PCIe 3.0 x8

-

Boost clock speed

940 MHz

-

Core clock speed

925 MHz

-

Manufacturing process technology

28 nm

90 nm

Number of transistors

1,550 million

-

Pipelines / CUDA cores

384

-

Texture fill rate

22.56

-

Memory type

GDDR5

-

Maximum RAM amount

1 GB

-

Memory bus width

128 Bit

-

Memory clock speed

4 GB/s

-

Memory bandwidth

64 GB/s

-

Display Connectors

Portable Device Dependent

-

DirectX

12 (12_0)

9.0c (9_3)

OpenCL

2.1

N/A

OpenGL

4.6

2.0 (full) Shader Model6.53.0

Vulkan

1.2.170

N/A

PureVideo HD

-

VP1