GeForce GTX 780M Mac Edition and Radeon R9 M395X Mac Edition - video card comparison
GeForce GTX 780M Mac Edition
Radeon R9 M395X Mac Edition
Architecture
Kepler (2012−2018)
GCN 3.0 (2014−2017)
GPU code name
GK104
Amethyst
Market segment
Desktop
Desktop
Release date
November 2013
May 2015
Interface
MXM-B (3.0)
MXM-B (3.0)
Supplementary power connectors
-
None
Boost clock speed
797 MHz
-
Core clock speed
771 MHz
909 MHz
Floating-point performance
2,448 gflops
3,723 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
3,540 million
5,000 million
Pipelines / CUDA cores
1536
2048
Power consumption (TDP)
122 Watt
250 Watt
Texture fill rate
102.0
116.4
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
4 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
5000 MHz
5460 MHz
Memory bandwidth
160.0 GB/s
174.7 GB/s
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (12_0)
CUDA
3.0
-
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.3
Vulkan
1.1.126
1.2.131