Radeon Pro 555X and Steam Deck GPU - video card comparison

Radeon Pro 555X

Steam Deck GPU

Architecture

Polaris (2016−2019)

RDNA 2.0 (2020−2022)

GPU code name

Polaris 21

Van Gogh

Market segment

Mobile workstation

Desktop

Release date

June 2017

February 2022

Interface

PCIe 3.0 x8

-

Supplementary power connectors

None

None

Boost clock speed

-

1600 MHz

Core clock speed

855 MHz

-

Manufacturing process technology

14 nm

7 nm

Number of transistors

3,000 million

2,400 million

Pipelines / CUDA cores

768

512

Power consumption (TDP)

-

15 Watt

Texture fill rate

43.54

51.20

Memory type

GDDR5

LPDDR5

Maximum RAM amount

4 GB

16 GB

Memory bus width

128 Bit

128 Bit

Memory clock speed

5080 MHz

5.5 GB/s

Memory bandwidth

81.6 GB/s

88 GB/s

Shared memory

-

-

Display Connectors

No outputs

1x USB Type-C

DirectX

12 (12_0)

12 (12_1)

OpenCL

2.0

2.0

OpenGL

4.6

4.6

Shader Model

6.4

6.5

Vulkan

1.2.131

1.2

FreeSync

+

-