AMD Radeon R9 255 OEM: GPU Specs & Benchmarks

The Radeon R9 255 OEM is a graphics card by AMD, built on the 28 nm process and based on the Cape Verde graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

Recommended Gaming Resolutions 640x480 1280x720 1366x768 1600x900 1920x1080 2560x1440 3840x2160

Graphics Processor (GPU)

GPU Name

Cape Verde

Model number

Cape Verde PRX

Architecture

GCN 1.0

Foundry

TSMC

Process Size

28 nm

Transistors

1,500 million

Die Size

123 mm²

Graphics Card

Release Date

Dec 21st, 2013

Family

Volcanic Islands
(R9 200)

Production

End-of-life

Predecessor

Sea Islands

Bus Interface

PCIe 3.0 x16

Memory

Memory Size

2 GB

Memory Type

GDDR5

Memory Bus

128 bit

Bandwidth

73.60 GB/s

Performance

Pixel fillrate

14.88 GPixel/s

Texture fillrate

29.76 GTexel/s

FP32 (float) performance

952.3 GFLOPS

FP64 (double) performance

59.52 GFLOPS (1:16)

Clock Speeds

Base Clock

900 MHz

Boost Clock

930 MHz

Memory Clock

1150 MHz
4.6 Gbps effective

Render Config

Shading Units

512

TMUs

32

ROPs

16

Compute Units

8

L1 Cache

16 KB (per CU)

L2 Cache

256 KB

Board Design

Slot Width

Dual-slot

Thermal design power (TDP)

65 W

Suggested PSU

250 W

Display Connectors

No outputs

Power Connectors

1x 6-pin

Board Number

C750

API support

DirectX

12 (11_1)

OpenGL

4.6

OpenCL

1.2

Vulkan

1.2

Shader Model

5.1