GeForce GT 640M Mac Edition and Radeon X1300 - video card comparison
GeForce GT 640M Mac Edition
Radeon X1300
Architecture
Kepler (2012−2018)
R500 (2005−2007)
GPU code name
GK107
RV515
Market segment
Desktop
Desktop
Release date
February 2013
December 2005
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
-
None
Core clock speed
745 MHz
450 MHz
Floating-point performance
572.2 gflops
-
Manufacturing process technology
28 nm
90 nm
Number of transistors
1,270 million
107 million
Pipelines / CUDA cores
384
-
Power consumption (TDP)
32 Watt
-
Texture fill rate
23.84
1.800
Memory type
GDDR5
DDR
Maximum RAM amount
512 MB
256 MB
Memory bus width
64 Bit
128 Bit
Memory clock speed
5000 MHz
500 MHz
Memory bandwidth
40 GB/s
8 GB/s
Display Connectors
No outputs
1x DVI, 1x VGA, 1x S-Video
DirectX
12 (11_0)
9.0c (9_3)
CUDA
3.0
-
OpenCL
1.2
N/A
OpenGL
4.6
2.0
Shader Model
5.1
3.0
Vulkan
1.1.126
N/A