Radeon HD 8470D and GeForce GTX 660M Mac Edition - video card comparison
Radeon HD 8470D
GeForce GTX 660M Mac Edition
Architecture
Terascale 3 (2010−2013)
Kepler (2012−2018)
GPU code name
Richland
GK107
Market segment
Desktop
Desktop
Release date
June 2013
April 2013
Interface
IGP
MXM-B (3.0)
Supplementary power connectors
-
None
Core clock speed
800 MHz
950 MHz
Floating-point performance
-
729.6 gflops
Manufacturing process technology
32 nm
28 nm
Number of transistors
1,303 million
1,270 million
Pipelines / CUDA cores
128
384
Power consumption (TDP)
65 Watt
50 Watt
Texture fill rate
10.20
30.40
Memory type
-
GDDR5
Maximum RAM amount
System Shared
512 MB
Memory bus width
-
128 Bit
Memory clock speed
-
5000 MHz
Memory bandwidth
-
80 GB/s
Shared memory
+
-
Display Connectors
No outputs
No outputs
DirectX
11.2 (11_0)
12 (11_0)
CUDA
-
3.0
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
N/A
1.1.126