GeForce GTX 660M Mac Edition and GeForce 720M - video card comparison
GeForce GTX 660M Mac Edition
GeForce 720M
Architecture
Kepler (2012−2018)
Fermi 2.0 (2010−2014)
GPU code name
GK107
GF117
Market segment
Desktop
Desktop
Release date
April 2013
April 2013
Interface
MXM-B (3.0)
PCIe 2.0 x16
Supplementary power connectors
None
-
Core clock speed
950 MHz
625 MHz
Floating-point performance
729.6 gflops
240.0 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
585 million
Pipelines / CUDA cores
384
96
Power consumption (TDP)
50 Watt
33 Watt
Texture fill rate
30.40
10.00
Memory type
GDDR5
DDR3
Maximum RAM amount
512 MB
2 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
5000 MHz
1600 MHz
Memory bandwidth
80 GB/s
12.8 GB/s
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (11_0)
CUDA
3.0
2.1
OpenCL
1.2
1.1
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A