Radeon HD 7770M vs Radeon HD 6990M Crossfire
|
AMD |
Developer |
AMD |
|
Radeon HD 7770M |
Model |
Radeon HD 6990M Crossfire |
|
- |
benchmarks |
- |
|
GCN(Chelsea XT) |
Architecture |
Terascale 2(Blackcomb XTX) |
|
28 |
Process, nm |
40 |
|
512 |
Shaders |
2240 |
|
675 |
Core frequency |
715 |
|
675 |
Shaders frequency |
715 |
|
GDDR5 |
Memory type |
GDDR5 |
|
4000 |
Memory frequency |
900 |
|
128 |
Memory bus |
256 |
|
11.1 |
DirectX |
11 |
|
4.1 |
OpenGL |
- |