The HIS Radeon HD 7770 iCooler is a close to reference implementation of the HD 7770. Coming at reference design price and clocks, its biggest innovation is its cooler, which is exceedingly quiet. It is actually the quietest HD 7770 we tested so far."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips