GeForce GT 640M Mac Edition and Radeon R8 M535DX - video card comparison
GeForce GT 640M Mac Edition
Radeon R8 M535DX
Architecture
Kepler (2012−2018)
GCN 3.0 (2014−2017)
GPU code name
GK107
Meso
Market segment
Desktop
Desktop
Release date
February 2013
April 2017
Interface
PCIe 3.0 x16
IGP
Boost clock speed
-
891 MHz
Core clock speed
745 MHz
780 MHz
Floating-point performance
572.2 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
1,550 million
Pipelines / CUDA cores
384
320
Power consumption (TDP)
32 Watt
-
Texture fill rate
23.84
17.82
Memory type
GDDR5
System Shared
Maximum RAM amount
512 MB
System Shared
Memory bus width
64 Bit
System Shared
Memory clock speed
5000 MHz
System Shared
Memory bandwidth
40 GB/s
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (12_0)
CUDA
3.0
-
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.0
Vulkan
1.1.126
1.2.131