Radeon HD 6990M and Radeon HD 6970M - video card comparison
Radeon HD 6990M
Radeon HD 6970M
Architecture
Terascale 2 (2009−2015)
Terascale 2 (2009−2015)
GPU code name
Blackcomb XTX
Blackcomb XT
Market segment
Laptop
Laptop
Release date
July 2011
January 2011
Interface
MXM-B (3.0)
MXM-B (3.0)
Supplementary power connectors
None
None
Core clock speed
715 MHz
680 MHz
Floating-point performance
1,601.6 gflops
1,305.6 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,700 million
1,700 million
Pipelines / CUDA cores
1120
960
Power consumption (TDP)
100 Watt
75-100 Watt
Texture fill rate
40.04
32.64
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
900 MHz
900 MHz
Memory bandwidth
115.2 GB/s
115.2 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
11.2 (11_0)
11.2 (11_0)
OpenCL
1.2
1.2
OpenGL
4.4
4.4
Shader Model
5.0
5.0
Vulkan
N/A
N/A