Radeon Pro 555X and Radeon 550X Mobile - video card comparison
Radeon Pro 555X
Radeon 550X Mobile
Architecture
Polaris (2016−2019)
GCN 4.0 (2016−2020)
GPU code name
Polaris 21
Polaris 23
Market segment
Mobile workstation
Laptop
Release date
June 2017
April 2018
Interface
PCIe 3.0 x8
PCIe 3.0 x8
Supplementary power connectors
None
-
Boost clock speed
-
1287 MHz
Core clock speed
855 MHz
1100 MHz
Floating-point performance
-
1,647 gflops
Manufacturing process technology
14 nm
14 nm
Number of transistors
3,000 million
2,200 million
Pipelines / CUDA cores
768
640
Power consumption (TDP)
-
50 Watt
Texture fill rate
43.54
51.48
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
4 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
5080 MHz
6000 MHz
Memory bandwidth
81.6 GB/s
48 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_0)
12 (12_0)
OpenCL
2.0
2.0
OpenGL
4.6
4.6
Shader Model
6.4
6.4
Vulkan
1.2.131
1.2.131
FreeSync
+
-