
Radeon Pro 555X and Radeon Pro Vega 20 - video card comparison
Passmark - benchmark score Radeon Pro 555X vs Radeon Pro Vega 20
Radeon Pro 555X
3332
Radeon Pro Vega 20
5458
Radeon Pro 555X
Radeon Pro Vega 20
Architecture
Polaris (2016−2019)
Vega (2017−2021)
GPU code name
Polaris 21
Vega Mobile
Market segment
Mobile workstation
Mobile workstation
Release date
June 2017
November 2018
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
None
1x 6-pin + 1x 8-pin
Boost clock speed
-
1283 MHz
Core clock speed
855 MHz
815 MHz
Manufacturing process technology
14 nm
14 nm
Number of transistors
3,000 million
-
Pipelines / CUDA cores
768
1280
Power consumption (TDP)
-
100 Watt
Texture fill rate
43.54
102.6
Memory type
GDDR5
HBM2
Maximum RAM amount
4 GB
4 GB
Memory bus width
128 Bit
1024 Bit
Memory clock speed
5080 MHz
1480 MHz
Memory bandwidth
81.6 GB/s
189.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_0)
12 (12_1)
OpenCL
2.0
2.0
OpenGL
4.6
4.6
Shader Model
6.4
6.3
Vulkan
1.2.131
1.2.131
FreeSync
+
-