You have a choice
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Subject: You have a choice
Date: 1/30/2002 4:29:55 PM (GMT-7)
IP Address: 188.8.131.52
In Reply to: P4 2.2 and memory posted by
you can buy DDR-SDRAM if you want the longest possible upgrade path, or you can buy RDRAM if you want peak performance. Given that motherboard upgrades are more frequent than they used to be, you will probably end up replacing your board with your next major processor upgrade anyway, so I wouldn't let the "dead-end" factor be a hindrance. Go with what works for you.
I say "dead-end" because Intel is phasing RDRAM out of its roadmap, the last RDRAM chipset scheduled to appear is the Tehama-E in a few months with 533MHz bus. After that, the plans only show DDR, including dual-channel DDR chipsets starting around the third quarter or so. These should perform on par with, if not better than, the i850/RDRAM solution.
If you do want to get i850/Rambus for the sake of peak performance, though, now is the time to do it. Rambus memory is in low enough demand that it presently is nearing price parity with DDR (even though the latter is a bit cheaper to produce). On the other hand, you might find that the VIA P4X266 (DDR) has comparable performance in most apps, and costs a fair bit less money than an i850 board.
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