AMD Radeon RX 560X vs AMD Radeon R9 285X

VS

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 560X and 3GB VRAM Radeon R9 285X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 560X 's Advantages

Boost Clock1275MHz

More VRAM (4GB vs 3GB)

Lower TDP (75W vs 200W)

AMD Radeon R9 285X 's Advantages

Larger VRAM bandwidth (264.0GB/s vs 112.0GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 560X

2.611 TFLOPS

Radeon R9 285X +57%

4.104 TFLOPS

Radeon RX 560X

VS

Radeon R9 285X

Graphics Card

Apr 2018

Release Date

Unknown

Polaris

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1175 MHz

Base Clock

-

1275 MHz

Boost Clock

-

1750 MHz

Memory Clock

1375 MHz

Memory

4GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

112.0GB/s

Bandwidth

264.0GB/s

Render Config

-

SM Count

-

16

Compute Units

32

1024

Shading Units

2048

64

TMUs

128

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

768 KB

Theoretical Performance

20.40 GPixel/s

Pixel Rate

32.06 GPixel/s

81.60 GTexel/s

Texture Rate

128.3 GTexel/s

2.611 TFLOPS

FP16 (half)

-

2.611 TFLOPS

FP32 (float)

4.104 TFLOPS

163.2 GFLOPS

FP64 (double)

-

Graphics Processor

Polaris 21

GPU Name

Tonga

Polaris 21 XT (215-0908004)

GPU Variant

Tonga XT (215-0851313)

GCN 4.0

Architecture

GCN 3.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

5 billion

123 mm²

Die Size

366 mm²

Board Design

75W

TDP

200W

250 W

Suggested PSU

550 W

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

Outputs

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

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.2

Vulkan

1.2

-

CUDA

-

6.4

Shader Model

6.3

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