The Radeon X850 XT is the fastest chip ATI has to offer. Sapphire Radeon X850 XT Platinum Edition cards are available in both AGP and PCI-E models. The card we got our hands on was the AGP version. The Platinum Edition tag means card is clocked higher than the regular edition. This is the top of the line video card using an ATI chip.



Link: TheTechZone