Radeon HD 6950M and Radeon HD 7770M - video card comparison
Radeon HD 6950M
Radeon HD 7770M
Architecture
Terascale 2 (2009−2015)
GCN (2011−2017)
GPU code name
Blackcomb Pro
Chelsea XT
Market segment
Laptop
Laptop
Release date
January 2011
April 2012
Interface
MXM-B (3.0)
PCIe 2.0 x16
Core clock speed
580 MHz
675 MHz
Floating-point performance
1,113.6 gflops
691.2 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,700 million
1,500 million
Pipelines / CUDA cores
960
512
Power consumption (TDP)
50 Watt
32 Watt
Texture fill rate
27.84
21.60
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
900 MHz
4000 MHz
Memory bandwidth
115.2 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
11.2 (11_0)
12 (11_1)
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
N/A
1.2.131