GeForce GT 650M Mac Edition and GeForce GTX 470 X2 - video card comparison
GeForce GT 650M Mac Edition
GeForce GTX 470 X2
Architecture
Kepler (2012−2018)
Fermi (2010−2014)
GPU code name
GK107
GF100
Market segment
Desktop
Desktop
Release date
July 2012
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
-
2x 8-pin
Core clock speed
900 MHz
608 MHz
Floating-point performance
691.2 gflops
-
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,270 million
3,100 million
Pipelines / CUDA cores
384
352
Power consumption (TDP)
45 Watt
215 Watt
Texture fill rate
28.80
26.75
Memory type
GDDR5
GDDR5
Maximum RAM amount
512 MB
1 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
5016 MHz
3.3 GB/s
Memory bandwidth
80.26 GB/s
107.1 GB/s
Display Connectors
No outputs
3x DVI
DirectX
12 (11_0)
12 (11_0)
CUDA
3.0
2.0
OpenCL
1.2
1.1
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A