Just sold my 2900XT, in favor of a Powercolor 3850 PCS card, BUT before I packed my trusty 2900XT in itīs box i did run one last 3Dmark06 round with my X4. And I think i broke the Worldrecord! (if there is one for AMD+Siglecard...)

http://service.futuremark.com/compare?3dm06=4042501

Sytem:
Gigabyte 790FX-DQ6
Ballistix Pc8500 @ 500mhz 4-4-3-8 2,43v
Seventeam 650W
Powercolor 2900XT
Cat7.10