so ATM my run of the mill powercolor HD7850 is at 1100MHZ on stock voltages (1138mv) i am yet to touch memory so it is still at stock (4800mhz effective)
this clock speed is perfectly stable through a loop of heaven. max temps are 49c with an ambient of 27-32c (i have fitted an arctic accelero twin turbo II, hooked directly into a 12v output off a molex)
to get to 1100MHz i increased by 20mhz then ran the heaven bench until 1040mhz, and from there have been increasing by 10mhz, as you can probably gather, this is painfully slow, (and i now know the heaven bench like the back of my hand) am i being exessively pedantic, should i go back to the 20MHZ increases untill instability? or stick with 10 and nut through it?
I thinks that you should nut all over it by an 5MHz increase.
Hope that help you sir
i found out the otherday that 1120 was the limit on stock voltage, and the BSOD's got me too worried when i attempted further, so 5400 mem and 1100 core is what ill stick to atm (not sure if thats the limit on my memory, thats just what i told it to run at)