GeForce GTX 660M Mac Edition and Radeon 9550 - video card comparison
GeForce GTX 660M Mac Edition
Radeon 9550
Architecture
Kepler (2012−2018)
Rage 8 (2002−2006)
GPU code name
GK107
RV350
Market segment
Desktop
Desktop
Release date
April 2013
October 2003
Interface
MXM-B (3.0)
AGP 8x
Supplementary power connectors
None
None
Core clock speed
950 MHz
250 MHz
Floating-point performance
729.6 gflops
-
Manufacturing process technology
28 nm
130 nm
Number of transistors
1,270 million
60 million
Pipelines / CUDA cores
384
-
Power consumption (TDP)
50 Watt
-
Texture fill rate
30.40
1.000
Memory type
GDDR5
DDR
Maximum RAM amount
512 MB
64 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
5000 MHz
400 MHz
Memory bandwidth
80 GB/s
6.4 GB/s
Display Connectors
No outputs
1x DVI, 1x VGA, 1x S-Video
DirectX
12 (11_0)
9.0 (9_0)
CUDA
3.0
-
OpenCL
1.2
N/A
OpenGL
4.6
2.0
Shader Model
5.1
-
Vulkan
1.1.126
N/A