AMD Radeon R9 285X: GPU Specs & Benchmarks

The Radeon R9 285X is a graphics card by AMD, built on the 28 nm process and based on the Tonga graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

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Graphics Processor (GPU)

GPU Name

Tonga

Model number

Tonga XT

Architecture

GCN 3.0

Foundry

TSMC

Process Size

28 nm

Transistors

5,000 million

Die Size

366 mm²

Graphics Card

Release Date

Never Released

Family

Volcanic Islands
(R9 200)

Production

End-of-life

Predecessor

Sea Islands

Bus Interface

PCIe 3.0 x16

Memory

Memory Size

3 GB

Memory Type

GDDR5

Memory Bus

384 bit

Bandwidth

264.0 GB/s

Performance

Pixel fillrate

32.06 GPixel/s

Texture fillrate

128.3 GTexel/s

FP32 (float) performance

4.104 TFLOPS

Clock Speeds

Memory Clock

1375 MHz
5.5 Gbps effective

GPU Clock

1002 MHz

Render Config

Shading Units

2048

TMUs

128

ROPs

32

Compute Units

32

L1 Cache

16 KB (per CU)

L2 Cache

768 KB

Board Design

Slot Width

Dual-slot

Length

267 mm
10.5 inches

Thermal design power (TDP)

200 W

Suggested PSU

550 W

Display Connectors

2x DVI
1x HDMI
1x DisplayPort

Power Connectors

1x 6-pin + 1x 8-pin

Board Number

C765

API support

DirectX

12 (12_0)

OpenGL

4.6

OpenCL

2.0

Vulkan

1.2

Shader Model

6.3