Radeon HD 6770M Mac Edition and Mobility Radeon HD 4670 Mac Edition - video card comparison
Radeon HD 6770M Mac Edition
Mobility Radeon HD 4670 Mac Edition
Architecture
TeraScale 2 (2009−2015)
TeraScale (2005−2013)
GPU code name
Whistler
M96
Market segment
Desktop
Desktop
Release date
January 2011
September 2009
Interface
MXM-A (3.0)
MXM-A (3.0)
Core clock speed
725 MHz
680 MHz
Floating-point performance
696.0 gflops
435.2 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
716 million
514 million
Pipelines / CUDA cores
480
320
Power consumption (TDP)
35 Watt
35 Watt
Texture fill rate
17.40
21.76
Memory type
GDDR5
GDDR3
Maximum RAM amount
512 MB
256 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
3600 MHz
1580 MHz
Memory bandwidth
57.6 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