AMD Radeon R9 285X vs AMD Radeon RX 550

VS

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 285X and 2GB VRAM Radeon RX 550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285X 's Advantages

More VRAM (3GB vs 2GB)

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

1536 additional rendering cores

AMD Radeon RX 550 's Advantages

Boost Clock1183MHz

Lower TDP (50W vs 200W)

Score

Benchmark

FP32 (float)

Radeon R9 285X +238%

4.104 TFLOPS

Radeon RX 550

1.211 TFLOPS

Radeon R9 285X

VS

Radeon RX 550

Graphics Card

Unknown

Release Date

Apr 2017

Volcanic Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1183 MHz

1375 MHz

Memory Clock

1750 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

264.0GB/s

Bandwidth

112.0GB/s

Render Config

-

SM Count

-

32

Compute Units

8

2048

Shading Units

512

128

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

512 KB

Theoretical Performance

32.06 GPixel/s

Pixel Rate

18.93 GPixel/s

128.3 GTexel/s

Texture Rate

37.86 GTexel/s

-

FP16 (half)

1211 GFLOPS

4.104 TFLOPS

FP32 (float)

1211 GFLOPS

-

FP64 (double)

75.71 GFLOPS

Graphics Processor

Tonga

GPU Name

Lexa

Tonga XT (215-0851313)

GPU Variant

Lexa PRO (215-0904018)

GCN 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

5 billion

Transistors

2.2 billion

366 mm²

Die Size

103 mm²

Board Design

200W

TDP

50W

550 W

Suggested PSU

250 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

CUDA

-

6.3

Shader Model

6.4

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