I have no clue what is up but when overclocking in Sapphire TriXX I noticed that my 6770 was using 1.2volts when my 5830 is using 1.163 volts.. I ran MSI Kombustor to test my new clocks and indeed it says 1.2volts I have current drivers for the 6770 and I haven't touched volts at all. Although with TriXX it shows that there is no slider for the 6770. Its stock settings are 850core and 1200mem. I did a 15mhz bump on core only. 5830 is Sapphire Extreme Edition 1GB and the 6770 is a HIS 6770.