Okay so this is my results from the maximum stable overclock I can get with 1.212 volts on my 780 HOF. Disappointing to say the least. It is exactly the same like when I ran 1.187 volts and even resulted in the same 3020 score in unigine valley. Pushing the card higher simply results in instability and crash within a minute or so, yet this speed is perfectly fine.
One thing that I've noticed is that in GPUz I am now Vrel and Vop limited whereas before I was Vrel limited. Does this change much for me? I don't think so. Just trying to wrap my head around how this 'premium' card has turned out to be so average.
Also I'd like to note that these are results with the hardware boost enabled, but I'll try again without it (but I think it will become unstable unfortunately).
Edit: Turned off the hardware boost and the display driver crashed after a minute or so. Then it started swinging back and fourth between 692mhz and 1267mhz.
Edit 2: I believe my card is simply a dud. The whole time I've been trying to overclock it has been with the hardware boost enabled. With the hardware boost disabled, any clocks which are above the stock settings will simply result in throttling problems where the card will jump (about once a second) between the boost clocks and (I believe) 2d clocks.Edited by anticommon - 8/18/13 at 9:03am