AMD Radeon R5 A255: GPU Specs & Benchmarks

The Radeon R5 A255 is a graphics card by AMD, built on the 28 nm process and based on the Topaz graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

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Graphics Processor (GPU)

GPU Name

Topaz

Model number

Topaz PRO
(216-0864032)

Architecture

GCN 3.0

Foundry

TSMC

Process Size

28 nm

Transistors

1,550 million

Die Size

125 mm²

Graphics Card

Release Date

2014

Family

All-In-One
(Rx 200)

Production

End-of-life

Bus Interface

PCIe 3.0 x8

Memory

Memory Size

1024 MB

Memory Type

GDDR5

Memory Bus

128 bit

Bandwidth

64.00 GB/s

Performance

Pixel fillrate

7.520 GPixel/s

Texture fillrate

22.56 GTexel/s

FP32 (float) performance

721.9 GFLOPS

Clock Speeds

Base Clock

925 MHz

Boost Clock

940 MHz

Memory Clock

1000 MHz
4 Gbps effective

Render Config

Shading Units

384

TMUs

24

ROPs

8

Compute Units

6

L1 Cache

16 KB (per CU)

L2 Cache

256 KB

Board Design

Thermal design power (TDP)

unknown

Display Connectors

No outputs

API support

DirectX

12 (12_0)

OpenGL

4.6

OpenCL

2.0

Vulkan

1.2

Shader Model

6.3