Quote Originally Posted by Devious View Post
Same trend here with my xfire 4850's

Did some testing with these cards last night on 3D mark 06 , i ran the tests a few times with my cpu @ 3.8Ghz and as i clocked the cards over a certain point the scores started to get worse


Q6600@3.8Ghz

750/1050 = 20229
800/1075 = 21328*
825/1100 = 21199
850/1080 = 21103


Very odd, if thats the case then i might back down my 1.4v to 1.25 if its not getting me any faster speed.

I need to try it in some other games/test.


It's not that unusual, ATI relaxes the ram timings as you clock it higher, also you might note the cards ram needs to clock up in 25mhz jumps. They sync at intervals of 25 so keep the freqs divisable by that number.

The core is also affected by the same problem, this has been true since the 1900's AFAIK. find out where it performs best ( the factory setting is a clue.) then stick to the ratio. I would tell the number but I am going for some cups this weekend and I need all the tweaks I can to get past Gomeler.