Apple M1 8-Core GPU and Radeon Pro 555X - video card comparison

Apple M1 8-Core GPU

Radeon Pro 555X

Architecture

-

Polaris (2016−2019)

GPU code name

-

Polaris 21

Market segment

Laptop

Mobile workstation

Release date

November 2020

June 2017

Interface

-

PCIe 3.0 x8

Supplementary power connectors

-

None

Core clock speed

1278 MHz

855 MHz

Manufacturing process technology

5 nm

14 nm

Number of transistors

-

3,000 million

Pipelines / CUDA cores

8

768

Texture fill rate

-

43.54

Memory type

-

GDDR5

Maximum RAM amount

-

4 GB

Memory bus width

-

128 Bit

Memory clock speed

-

5080 MHz

Memory bandwidth

-

81.6 GB/s

Shared memory

+

-

Display Connectors

-

No outputs

DirectX

-

12 (12_0)

OpenCL

-

2.0

OpenGL

-

4.6

Shader Model

-

6.4

Vulkan

-

1.2.131

FreeSync

-

+