Hi there, I'm currently using Athlon 64 X2 6000+ (2MB L2) with ASUS M2NPV-MX (nVDIA 6150 + SB430) & Sparkle 9400GT (1GB DDR2). So the motherboard is very old one & need an upgrade for sure, though, there's CPU upgrade required as well but that's just not enough room for that in my current budget. For my choices at the moment are, NVIDIA's 8100, 8200 & 720D. And for AMD 760G & 785G. Please suggest me best & also, explain differences these chipsets can make. THANX!