AMD Radeon R9 285 vs AMD Radeon RX 550X

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 285 and 4GB VRAM Radeon RX 550X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285 's Advantages

Larger VRAM bandwidth (176.0GB/s vs 96.00GB/s)

1280 additional rendering cores

AMD Radeon RX 550X 's Advantages

Released 4 years and 3 months late

Boost Clock1183MHz

More VRAM (4GB vs 2GB)

Lower TDP (50W vs 190W)

Score

Benchmark

FP32 (float)

Radeon R9 285 +171%

3.29 TFLOPS

Radeon RX 550X

1.211 TFLOPS

Radeon R9 285

VS

Radeon RX 550X

Graphics Card

Sep 2014

Release Date

Dec 2018

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

1500 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

176.0GB/s

Bandwidth

96.00GB/s

Render Config

-

SM Count

-

28

Compute Units

8

1792

Shading Units

512

112

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

Theoretical Performance

29.38 GPixel/s

Pixel Rate

18.93 GPixel/s

102.8 GTexel/s

Texture Rate

37.86 GTexel/s

3.290 TFLOPS

FP16 (half)

1211 GFLOPS

3.290 TFLOPS

FP32 (float)

1211 GFLOPS

205.6 GFLOPS

FP64 (double)

75.71 GFLOPS

Graphics Processor

Tonga

GPU Name

Lexa

Tonga PRO (215-0851128)

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

190W

TDP

50W

450 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

2x 6-pin

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2.170

Vulkan

1.2

-

CUDA

-

6.5

Shader Model

6.4

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