AMD Radeon 550X vs AMD Radeon RX 560DX

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon 550X and 4GB VRAM Radeon RX 560DX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 's Advantages

Released 11 months late

Boost Clock has increased by 4% (1218MHz vs 1175MHz)

Larger VRAM bandwidth (112.0GB/s vs 96.00GB/s)

Lower TDP (50W vs 65W)

AMD Radeon RX 560DX 's Advantages

More VRAM (4GB vs 2GB)

384 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X

1.247 TFLOPS

Radeon RX 560DX +68%

2.106 TFLOPS

Radeon 550X

VS

Radeon RX 560DX

Graphics Card

Mar 2019

Release Date

Apr 2018

Polaris

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1082 MHz

Base Clock

1090 MHz

1218 MHz

Boost Clock

1175 MHz

1750 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

112.0GB/s

Bandwidth

96.00GB/s

Render Config

-

SM Count

-

8

Compute Units

14

512

Shading Units

896

32

TMUs

56

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

1024 KB

Theoretical Performance

19.49 GPixel/s

Pixel Rate

18.80 GPixel/s

38.98 GTexel/s

Texture Rate

65.80 GTexel/s

1247 GFLOPS

FP16 (half)

2.106 TFLOPS

1247 GFLOPS

FP32 (float)

2.106 TFLOPS

77.95 GFLOPS

FP64 (double)

131.6 GFLOPS

Graphics Processor

Lexa

GPU Name

Polaris 21

Lexa PRO (215-0904018)

GPU Variant

Polaris 21 XL

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

2.2 billion

Transistors

3 billion

103 mm²

Die Size

123 mm²

Board Design

50W

TDP

65W

250 W

Suggested PSU

250 W

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

Outputs

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

None

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2

-

CUDA

-

6.4

Shader Model

6.4

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