OC My 4870x2 question

[salsa88]

I got my ATI HD 4870x2 from vistiontek yesterday and decided to Bench it.
I benched it out of the box with 3dmark06 with a score of 13050 @ 750mhz
I then went into the CCC and did the overdrive and recived a score 13240 @ 790mhz

My question is what else can i do to get this beast OC?
I've seen other 4870x2 getting up to 20k. What Driver should i be using? What settings and so on?
Also I have a 4850 would that improve anything if I Xfierd it with my new baby? I heard it will make it downgrade to the 4850 clock gpu and suck.

[OnDborder]

You're lucky you can oc through ccc. My HIS won't take from ccc. I have to bios edit for oc.
Would you mind showing a screenshot of gpu-z?
Also, in order to get higher scores in 2k06 would depend on the cpu oc. And cpu. 06 is mostly cpu dependent.
http://service.futuremark.com/compare?3dm06=8071984

[sandyduff]

a score of just under 14k suggests that 3dmark is only using one gpu... i get about the same results and never bothered trying to get it to run with both coz benches dont interest me much....

[gigabit]

Plus you will need to OC your CPU.Your not gonna break 20k with your cpu at 3.3ghz.I cant break 20k but with my Q6600 OCed to 3.8ghz i could and my card OCed pretty well also

[salsa88]

how do i get it to run both gpu's?

[OnDborder]

Can you give us a screenshot of gpu-z??
Like this with both cores showing from the "drop-down" box in gpuz.
http://img523.imageshack.us/img523/6827/44ad4.jpg (http://imageshack.us)