My motherboard is Intel D850EMV2. Yeah i know it sucks, but I got it two years ago. The AGP is only 4x max. If I buy a Geforce 6800GT or ultra will get the full benefit of the card. Because, I am aware the card supports up to 8x, so does that mean my 4x mobo will limit the true power of the card? Just in case your curious, my prcoessor is Northwood 2.8Ghz.