GeForce GT 640M Mac Edition and Radeon HD 5470 - video card comparison
GeForce GT 640M Mac Edition
Radeon HD 5470
Architecture
Kepler (2012−2018)
TeraScale 2 (2009−2015)
GPU code name
GK107
Cedar
Market segment
Desktop
Desktop
Release date
February 2013
February 2012
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
-
None
Core clock speed
745 MHz
650 MHz
Floating-point performance
572.2 gflops
104.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,270 million
292 million
Pipelines / CUDA cores
384
80
Power consumption (TDP)
32 Watt
19 Watt
Texture fill rate
23.84
5.200
Memory type
GDDR5
GDDR3
Maximum RAM amount
512 MB
512 MB
Memory bus width
64 Bit
64 Bit
Memory clock speed
5000 MHz
800 MHz
Memory bandwidth
40 GB/s
6.4 GB/s
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DirectX
12 (11_0)
11.2 (11_0)
CUDA
3.0
-
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
N/A