<< well explain to me why the P-4 takes such great advantage of Rdram in memory intensive apps but the tbird really doesn't with DDR ???? the gauges all point in the same direction and it isn't DDR. I'm not saying that rdram in its current state is perfect but it has tons of potential and I just don't see any advantage to ddr other than price. I truelly believe as things scale up that it will dissapeer. You have to remember just as much as Rambus had its reasons to hype up RDdram all the major Sdram manufacturers have the same reasons to hype up DDR as the end all when I just think its the Last Leg for there tooling and they want to put off the capital expediture as long as posible. >>
I'd be more than happy to.. the apps you are referring to are apps which primarely care about getting huge streams of data from the ram, for these RDRAM is from a purely technical point of view good. The same reason why RDRAM is good for the PSX2. However these apps are few and far between and one of the things that has made the X86 PC great is it's flexibility. DDR SDRAM may get outpreformed by RDRAM by a small margin in certain apps I don't think I ever denied that, but overall DDR is a better solution.
Right now there are two apps I know of where the P4 shines, 1) Q3A in resolutions lower than anybody care to actually play and 2)FlasK MPEG4 which is optimized for the P4's SSE2 specifically while the Tbird doesn't even get to use 3Dnow! or the advanced x87 FPU.
Neither of these two gives me reason enough to even consider looking ata P4 over the much cheaper Tbird. In fact I think what makes most sense right now is a KT133A based Tbird/Duron, and that's what I generally recommend people to buy, If you really want to get the best of the best go for a DDR Tbird, it will still be cheaper than going for a less preforming P4.