Radeon HD 7770 VTX3D X-Edition Game Requirement Analysis
Radeon HD 7770 VTX3D X-Edition is a special edition of the fast-middle-class Radeon HD 7770. See the page of the standard version for more information about it.
It comes with overclocking out of the box in the core-clock that was raised from 1000MHz to 1150MHz and in the memory clock from 1125MHz to 1250MHz.
Expect a 11% performance boost when compared to the standard Radeon HD 7770.