Radeon HD 6970M Mac Edition and Mobility Radeon HD 4670 Mac Edition - video card comparison
Radeon HD 6970M Mac Edition
Mobility Radeon HD 4670 Mac Edition
Architecture
TeraScale 2 (2009−2015)
TeraScale (2005−2013)
GPU code name
Blackcomb
M96
Market segment
Desktop
Desktop
Release date
August 2011
September 2009
Interface
MXM-B (3.0)
MXM-A (3.0)
Supplementary power connectors
None
-
Core clock speed
680 MHz
680 MHz
Floating-point performance
1,305.6 gflops
435.2 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
1,700 million
514 million
Pipelines / CUDA cores
960
320
Power consumption (TDP)
75 Watt
35 Watt
Texture fill rate
32.64
21.76
Memory type
GDDR5
GDDR3
Maximum RAM amount
2 GB
256 MB
Memory bus width
256 Bit
128 Bit
Memory clock speed
3600 MHz
1580 MHz
Memory bandwidth
115.2 GB/s
25.28 GB/s
Display Connectors
No outputs
No outputs
DirectX
11.2 (11_0)
10.1 (10_1)
OpenCL
1.2
1.1
OpenGL
4.4
3.3
Shader Model
5.0
4.1
Vulkan
N/A
N/A