As bagginsbill said the 5770 is plenty fast but its downfall is no double point floating precision and only a 128 bit bus for memory. Processor wise I'm sure its more than capable. But your probably maxing out its memory. Another 5770 in crossfire isn't going to help you with that as you still only have 1gb of memory available.   I just sold my saphire 5770 and it overclocked very well but was a reference model so it had voltage control.

A couple questions.

What 5770 do you have? Some allow better overclocking than others.

What drivers are you using?

More than one display?

What version of poser?

I'm assuming your running a 64bit os, but ya never know.

and lastly, what resolution are you running? The 5770 really slows down above 1680x1050.

 

Handle every stressful situation like a dog.

If you can't eat it or play with it,

just pee on it and walk away. :-)

....................................................

I wouldnt have to manage my anger

if people would manage their stupidity......