GeForce GT 640M Mac Edition and Radeon HD 8310G - video card comparison
GeForce GT 640M Mac Edition
Radeon HD 8310G
Architecture
Kepler (2012−2018)
TeraScale 3 (2010−2013)
GPU code name
GK107
Trinity
Market segment
Desktop
Laptop
Release date
February 2013
May 2013
Interface
PCIe 3.0 x16
IGP
Boost clock speed
-
554 MHz
Core clock speed
745 MHz
424 MHz
Floating-point performance
572.2 gflops
-
Manufacturing process technology
28 nm
32 nm
Number of transistors
1,270 million
1,303 million
Pipelines / CUDA cores
384
128
Power consumption (TDP)
32 Watt
20 Watt
Texture fill rate
23.84
5.760
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
-
Shared memory
-
+
Display Connectors
No outputs
No outputs
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