AMD Radeon R9 285X vs AMD Radeon RX 580

VS

AMD Radeon R9 285X

AMD Radeon RX 580

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 285X and 8GB VRAM Radeon RX 580 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285X 's Advantages

Larger VRAM bandwidth (264.0GB/s vs 256.0GB/s)

AMD Radeon RX 580 's Advantages

Boost Clock1340MHz

More VRAM (8GB vs 3GB)

256 additional rendering cores

Lower TDP (185W vs 200W)

Score

Benchmark

FP32 (float)

Radeon R9 285X

4.104 TFLOPS

Radeon RX 580 +50%

6.175 TFLOPS

Radeon R9 285X

VS

Radeon RX 580

Graphics Card

Unknown

Release Date

Apr 2017

Volcanic Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1257 MHz

-

Boost Clock

1340 MHz

1375 MHz

Memory Clock

2000 MHz

Memory

3GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

256.0GB/s

Render Config

32

Compute Units

36

-

2048

Shading Units

2304

128

TMUs

144

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

2 MB

-

Theoretical Performance

32.06 GPixel/s

Pixel Rate

42.88 GPixel/s

128.3 GTexel/s

Texture Rate

193.0 GTexel/s

-

FP16 (half)

6.175 TFLOPS

4.104 TFLOPS

FP32 (float)

6.175 TFLOPS

-

FP64 (double)

385.9 GFLOPS

Board Design

200W

TDP

185W

550 W

Suggested PSU

450 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Tonga

GPU Name

Polaris 20

Tonga XT (215-0851313)

GPU Variant

Polaris 20 XTX (215-0910038)

GCN 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

5 billion

Transistors

5.7 billion

366 mm²

Die Size

232 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

6.3

Shader Model

6.4

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