Undervolting 4870

[Wagan-rave]

Hello people,

I've already read from you that the Undervolten a 4870 2D-state the Idle Power neatly pressed, but I was also interested in the peak values.

Is it possible to use the card under load undervolten and what to gain from this?

[Viceman]

several people have undervolted their 4870 2D clocks, but i haven't heard of anyone undervolting the 3D clocks as well. this is XS, after all. the 2D undervolt and underclock seems to be as easy as editing the BIOS though.

[.:MUNDITO:.]

That should in most maps as well as the possible overclocking. In fact, the two sides of same coin: stability on a given cycle needs tension. Increases to the bar with constant tension, the map sometime unstable. Lower the voltage at constant frequency, is the same. Undervolting is in stable clock particularly well with cards that are in constant tension can be well over clock. Undervolting while overclocking, however, is not a good idea.

The tension gradually decrease. If the card is unstable (testing with ATITool, 3DMark or the other usual suspects), the tension a little lift.

Power consumption and heat generation in 4870 should the tension with a good scale, the second part of your question to answer. When it is important to you, you pretty good results may be, I think times. In watts or degrees but can not be quantified in advance, because it from card to card is different as well overclocking results.

[Wagan-rave]

But the ATT and RivaTuner's Power User settings can be - I think.