Yes, though DDR is sometimes preferred in overclocking, the P4 was used to utilize RDRAM best, and therefore, RDRAM is best equipped to handle the bandwidth-hungry P4. DDR is good, but IMO, RDRAM is better, and thus I'd go with the i850 or i850E when it comes out. The P4 is a dog with SDRAM though, I wouldn't even consider it for someone like us who wants every bit of performance possible from their computer.