VDDCI, gatekeeper of MVDDQ/MVDDC/VGPU?

[ECH]

I record the frame rate when the tab begins to drop at the end of the benchmark. FPS really doesn't give you any detail to a high score. It's an increase in frame rate that will tell you that. For example if your Return to Proxycon yeilded a frame rate of 2090 at the end of the run and, a 2nd run yielded a frame rate of 2130 (do to some tweaking) then this should impact your overall score.

I have been experimenting and realized the following using ATI TOOL with a x1900xtx:

At 720/832.5, VGPU 1.425, 2.108/2.108, VDDCI 1.486
FPS in 06 were unstable, always fluctuating up and down thus a low frame rate.

I simply increased the VDDCI to 1.491 and the FPS are more stable, less number jumpiing and overall increased frame rate.


Therefore, by increasing the VDDCI incrementally I it appears I stabilize the OC. I have been plays hours of BF2 with it after the 06 run and have not had a problems. Therefore, is the VDDCI a electrical gatekeeper of the MVDDC/MVDDQ/VGPU?

[Klimpen]

I don't know much about that but I will test it for you.
I have spent the whole day finding max GPU and max Mem speeds so I could easily test this with ONE extra round.

[HousERaT]

There is no information for this voltage as ATI has yet to release it. If you really have to know what it's for you might want to contact Macci over at XS and pray he can find out something about it. Otherwise everything is pretty much speculation.

[Klimpen]

It might be speculation but IF we can see a pattern when for example raising the voltage and thus get a more stable system we might not need to KNOW what it is for, just that it get more stable :)

[HousERaT]

There's no question that it helps in stability on the memory side. Anyone that's tried to get higher clocks with memory will see good results from going up a little with that particular voltage. As far as an official word on VDDCI we don't know exactly what it does although several of us have a good idea.