How that R9-290X is better overclocker than GK110??? If I know people struggle with 150MHz on water, my card work 200MHz overclocked with
reference voltage. 1025v on 1072MHz base clock or 1162V on 1200MHz. I think highest Hawaii fabric OC is 80MHz. They are pushed 10% more even
before cards saw first customers. And 2V can help them. But NVIDIA GK110 under water have lot of space, only voltage and PT and 300-400MHz if you have good cooling. And overclocked on 1170MHz 1.3V on Guru3D still is slower than mine card on fabric OC reference voltage. Only with GK110 is problem because anything above 1250MHz I need to change BIOS, end no more space for boost only
some BIOS with disabled boost, because hit power limit and result is not accurate.