ajgoodfellow said:What about a bundle with the X1900XT instead of the X1900XTX?
If I understand crossfire correctly the slave card will run at the speed of the master card. As the master card is clocked to the same speeds as the X1900XT isn't the X1900XTX wasted?
No not true.
A X1900 crossfire master card & X1900XTX will be ever so slightly faster than a X1900 crossfire master card & X1900XT. The cards do not downclock, the faster card will simply do more work.
See here .. http://www.ati.com/technology/crossfire/faq.html
Q7. What happens when your CrossFire Edition card and and a compatible standard Radeon (CrossFire Ready) graphics card have different clock speeds?
A. Both cards will continue to operate at their individual clock speeds.