AMD Radeon RX 560DX vs AMD Radeon 550X 640SP

VS

AMD Radeon RX 560DX

AMD Radeon 550X 640SP

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 560DX and 4GB VRAM Radeon 550X 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 560DX 's Advantages

Boost Clock has increased by 10% (1175MHz vs 1071MHz)

Larger VRAM bandwidth (96.00GB/s vs 48.00GB/s)

256 additional rendering cores

AMD Radeon 550X 640SP 's Advantages

Lower TDP (50W vs 65W)

Score

Benchmark

FP32 (float)

Radeon RX 560DX +53%

2.106 TFLOPS

Radeon 550X 640SP

1.371 TFLOPS

Radeon RX 560DX

VS

Radeon 550X 640SP

Graphics Card

Apr 2018

Release Date

Apr 2018

Polaris

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1090 MHz

Base Clock

1019 MHz

1175 MHz

Boost Clock

1071 MHz

1500 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

96.00GB/s

Bandwidth

48.00GB/s

Render Config

14

Compute Units

10

-

896

Shading Units

640

56

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

18.80 GPixel/s

Pixel Rate

17.14 GPixel/s

65.80 GTexel/s

Texture Rate

42.84 GTexel/s

2.106 TFLOPS

FP16 (half)

1371 GFLOPS

2.106 TFLOPS

FP32 (float)

1371 GFLOPS

131.6 GFLOPS

FP64 (double)

85.68 GFLOPS

Board Design

65W

TDP

50W

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 Processor

Polaris 21

GPU Name

Lexa

Polaris 21 XL

GPU Variant

Lexa PRO (215-0904018)

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

3 billion

Transistors

2.2 billion

123 mm²

Die Size

103 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2

-

6.4

Shader Model

6.4

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