Radeon HD 6770M and Mobility Radeon HD 4670 - video card comparison
Radeon HD 6770M
Mobility Radeon HD 4670
Architecture
Terascale 2 (2009−2015)
Terascale 1 (2008−2010)
GPU code name
Whistler-XT
M96-XT
Market segment
Laptop
Laptop
Release date
January 2011
January 2009
Interface
MXM-A (3.0)
MXM-A (3.0)
Core clock speed
675 / 725 MHz
675 MHz
Floating-point performance
696.0 gflops
432.0 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
21.60
Memory type
GDDR5
GDDR3, DDR2, DDR3
Maximum RAM amount
1 GB
512 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
800 MHz
800 MHz
Memory bandwidth
57.6 GB/s
25.6 GB/s
Shared memory
-
-
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