I tend to go with RickH's point of view. That's not saying that AMD processors are bad or anything. They really give you the most bang for the buck!
Actually I was all set for buying an AMD T-Bird at 1.4GHz a couple of months ago, because I also liked the idea of getting a cheaper, faster processor, instead of sending even more money Intel's way.
What made *me* change my mind was a rather interesting video made by the staff at Tom's Hardware (
http://www6.tomshardware.com/cpu/01...wnload_the_first_toms_hardware_test_lab_video), which showed how quickly an Athlon processor dies if the cooling fails. One might say, that this rarely happens, but consider the typical Athlon cooling setup. As processors get faster and faster they produce more and more heat, thus the heatsinks get a lot larger and a lot heavier. Since AMD (to my knowledge) hasn't any design guides for mounting heatsinks (apart from the keepout area), the typical heatsink is held in place only by the two latches on the ZIF socket, which in my experience aren't of the most sturdy quality. Add to that the fact that the heatsink actually "hangs" inside the chassis (since the motherboard is at a 45 degree angle), you really can come up quite easily with a scenario where the latches break og give way, and the heatsink falls down inside the chassis, possibly hitting the graphics board or other components. It's because of problems like these that heatsink manufacturers usually warn of removing the heatsink before moving the computer.
Intel usually tackles problems like these by issueing new design guides, which some people think of as unecessary and only a result of Intel's "powerplay". Intel solves the heatsink problems by making it mandatory to mount the heatsink on the motherboard using screws. And the extra power connector is there to make sure that the processor gets the power it needs. It's not *really* necessary, but better safe than sorry. So the statement
"P4s also use more hungry PSUs then AMD, last time I saw... at least AMD uses a standard psu connection, they didn't have to make up a new plug." doesn't really hold true... And P4s are actually not more powerhungry than Athlons; they use pretty much the same juice (not considering Northwood or Thoroughbred).
Apart from that I really like Intel's integrated heat spreader. Why doesn't AMD come up with stuff like that?
But really, AMDs biggest problem (from my point of view) are the chipsets. There always seem to be some sort of problems associated with VIA's chipsets (also for Intel processors). It's really sad, that AMD doesn't work on chipsets more than they do. My favorite Athlon boards all used the AMD760 chipset, which sadly is no more. Also it seems there are no more ECC solutions for the Athlon apart from the new dual configs using the 760MP(X)... Neither the nForce nor the SIS chipsets support this, and the KT266(A) doesn't seem to either.
As for RDRAM vs. DDR RAM; if I hadn't 256MB ECC DDR RAM from Kingston lying around from when I considered the Athlon platform, I might go for RDRAM. It costs more or less the same as DDR RAM these days. With one notable exception. RDRAM must always be used in identical pairs (since the i850 is a dual channel chipset), which might mean some extra costs and makes memory upgrades a bit more inflexible...
So, what this all comes down to for me is that I'd rather spend a few bucks more on a system which is slightly less fast, but considerably more stable and more wellplanned.
But then again, maybe it's just me...
