GeForce GT 650M Mac Edition and GeForce GTX 490 - video card comparison
GeForce GT 650M Mac Edition
GeForce GTX 490
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
480
Power consumption (TDP)
45 Watt
365 Watt
Texture fill rate
28.80
36.48
Memory type
GDDR5
GDDR5
Maximum RAM amount
512 MB
1536 MB
Memory bus width
128 Bit
384 Bit
Memory clock speed
5016 MHz
3.4 GB/s
Memory bandwidth
80.26 GB/s
164.0 GB/s
Display Connectors
No outputs
3x DVI, 1x mini-DisplayPort
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