quick question about 865/875

[Petiot]

I've been looking at some reviews at Toms Hardware at intel 800fsb boards and the MSI 865 PE Neo(Intel 865) rus faster than the MSI 875 NEO. So my question is this, why is the 875 boards more expensive then the 865 ones, and what is/are the main difference(s) between the two?

Thanks

ps. I've never built my own pc, but am getting ready to and want to make sure I get the right board.