I think it's more of a "tech-geek" vs. "non-tech-geek" thing. The AMD processors and the motherboards that support them (and the chipsets that support them), almost always have BIOS settings and jumpers for overclocking the processor, perfermance timing the DDR memory or similar things. I go with AMD - simply because its more efficient as a processor and you can get more out of it for much less money, and the options for performance are really good. The new nForce2 chipset by nVidia is a great chip (been using it for about 3 weeks now), and coupled with nice board (Asus A7n8x) it provides lots of possiblilties, along with ide raid, and 3.2Ghz memory bus and other things I'm forgetting off the top of my head.