Radeon Pro 555X and Stream Processor - video card comparison

Radeon Pro 555X

Stream Processor

Architecture

Polaris (2016−2019)

Ultra-Threaded SE

GPU code name

Polaris 21

R580

Market segment

Mobile workstation

Desktop

Release date

June 2017

2006

Interface

PCIe 3.0 x8

PCIe 1.0 x16

Supplementary power connectors

None

1x 6-pin

Core clock speed

855 MHz

594 MHz

Manufacturing process technology

14 nm

90 nm

Number of transistors

3,000 million

384 million

Pipelines / CUDA cores

768

Power consumption (TDP)

165 Watt

Texture fill rate

43.54

9.504

Memory type

GDDR5

GDDR3

Maximum RAM amount

4 GB

1 GB

Memory bus width

128 Bit

256 Bit

Memory clock speed

5080 MHz

1296 MBps

Memory bandwidth

81.6 GB/s

41.47 GB/s

Shared memory

Display Connectors

No outputs

2x DVI, 1x S-Video

DirectX

12 (12_0)

9.0c (9_3)

OpenCL

2.0

N/A

OpenGL

4.6

2.1 (full) Shader Model6.43.0

Vulkan

1.2.131

N/A

FreeSync