Originally Posted by ironmaiden
But one thing that I have not understood is why would CCC / Afterbuner / Trixx show that the mem clock can go till 1 Ghz but won't punch above 940.
There are no set numbers to which you can overclock your hardware. If that would be the case then why would the hardware not be already at that number when you buy it?
Just to give an example with CPUs but it also applies to GPUs:
Intel designs a certain chip. They bake a bunch of chips. Then they test them with intelburntest or some more advanced inhouse test program. The majority of those chips are completely broken and are thrown away.
The chips with the best results are then sold as 3570K. But that doesn't mean all those chips performed the same. Some were hotter then others, some required more voltage then others to reach 3.80 GHz turbo, etc,etc. But to be able to give them all the same name they are all put at the same voltage and clock speeds that all of them can handle. That's why every 3570K has different overclock potential. And this applies to every other cpu/gpu.
i5 3570 and i5 3550 are probably designed as the same chip but because they had worse test results they are sold as cheaper and not overclockable.Edited by Sisaroth - 11/10/12 at 7:29am