What is a Delta and how does it work?

[ZX7891]

Can anyone answer this question for me please?

[Wa77x]

Can anyone answer this question for me please?

.... Its just a computer fan, unless I am thinking of the wrong thing.

Delta (http://sidewindercomputers.com/detfbsedifa.html)

[ZX7891]

no im talking about geometric clock deltas

[Wa77x]

no im talking about geometric clock deltas

Ohhh.... sorry, I dont know what those are either :shrug:

[Highland3r]

http://www.xtremesystems.org/forums/showthread.php?t=72638

[RyderOCZ]

The Geometric clock is raised the amount of the Delta....so if you have a base clock of 450 and a 30 MHz Geometric Clock, once 3D is enabled the card ups the Geometric clock only by 30 MHz.

[mnewxcv]

so if 2d my card is 300, and 3d its 350 lets say, delta is 50mhz?

[Micketh]

the way i understand it is my 7800GT was 400 2d and 4253d but had a 50mhz delta which put it upto 475 in 3d aplications

[K404]

No no (Mnew)...those are just different clock settings for 2D Vs 3D. A Delta is when you take you`re...say...3D clock and a Delta to it so the ROP, Shader and Core clocks increase speeds at different rates. The core clock can scale higher than the ROP and Shader clocks, and all 3 are "happiest" at integer values of their base clock rates.

Err....i`m not doing a very good job of explaining this, but the thread link above if well explained if ya read through it then start messing with Riva :)

[mnewxcv]

well i here 6800s dont have a delta, or maybe a delta of 0. how does that work?

[Micketh]

well i guess i was wrong :(, does messing with the delta make much diff in games?