Radeon RX 550 and Amethyst - video card comparison

Radeon RX 550

Amethyst

Architecture

GCN 4.0 (2016−2020)

GCN 3.0 (2014−2017)

GPU code name

Lexa

Amethyst

Market segment

Desktop

Desktop

Release date

April 2017

-

Interface

PCIe 3.0 x8

-

Supplementary power connectors

None

-

Boost clock speed

1183 MHz

-

Core clock speed

1100 MHz

-

Floating-point performance

1,211 gflops

-

Manufacturing process technology

14 nm

28 nm

Number of transistors

2,200 million

5,000 million

Pipelines / CUDA cores

512

2048

Power consumption (TDP)

50 Watt

-

Texture fill rate

37.86

-

Memory type

GDDR5

-

Maximum RAM amount

4 GB

-

Memory bus width

128 Bit

-

Memory clock speed

7000 MHz

-

Memory bandwidth

112.0 GB/s

-

Display Connectors

1x DVI, 1x HDMI, 1x DisplayPort

-

HDMI

+

-

DirectX

12 (12_0)

12 (12_0)

OpenCL

2.0

2.1

OpenGL

4.6

4.6

Shader Model

6.4

6.5

Vulkan

1.2.131

1.2.170