Radeon Pro 555X and GeForce GTX 675MX Mac Edition - video card comparison
Radeon Pro 555X
GeForce GTX 675MX Mac Edition
Architecture
Polaris (2016−2019)
Kepler (2012−2018)
GPU code name
Polaris 21
GK104
Market segment
Mobile workstation
Desktop
Release date
June 2017
April 2013
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
None
-
Core clock speed
855 MHz
719 MHz
Floating-point performance
-
1,933 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
3,000 million
3,540 million
Pipelines / CUDA cores
768
1344
Power consumption (TDP)
-
100 Watt
Texture fill rate
43.54
80.53
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
1 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
5080 MHz
5000 MHz
Memory bandwidth
81.6 GB/s
160.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_0)
12 (11_0)
CUDA
-
3.0
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.2.131
1.1.126
FreeSync
+
-