Radeon Pro 555X and Radeon R9 M380 Mac Edition - video card comparison
Radeon Pro 555X
Radeon R9 M380 Mac Edition
Architecture
Polaris (2016−2019)
GCN 2.0 (2013−2017)
GPU code name
Polaris 21
Strato
Market segment
Mobile workstation
Desktop
Release date
June 2017
May 2015
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
None
-
Boost clock speed
-
1021 MHz
Core clock speed
855 MHz
900 MHz
Floating-point performance
-
1,568 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
3,000 million
2,080 million
Pipelines / CUDA cores
768
768
Texture fill rate
43.54
49.01
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
5080 MHz
6272 MHz
Memory bandwidth
81.6 GB/s
100.4 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
+
-