Radeon Pro 555X and Radeon R9 M395X Mac Edition - video card comparison
Radeon Pro 555X
Radeon R9 M395X Mac Edition
Architecture
Polaris (2016−2019)
GCN 3.0 (2014−2017)
GPU code name
Polaris 21
Amethyst
Market segment
Mobile workstation
Desktop
Release date
June 2017
May 2015
Interface
PCIe 3.0 x8
MXM-B (3.0)
Supplementary power connectors
None
None
Core clock speed
855 MHz
909 MHz
Floating-point performance
-
3,723 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
3,000 million
5,000 million
Pipelines / CUDA cores
768
2048
Power consumption (TDP)
-
250 Watt
Texture fill rate
43.54
116.4
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
4 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
5080 MHz
5460 MHz
Memory bandwidth
81.6 GB/s
174.7 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
6.3
Vulkan
1.2.131
1.2.131
FreeSync
+
-