Tom's Hardware Guide Mainboard Guide:
Tom’s Hardware Guide Mainboard Guide: SiS 645DX – Is This The Best Chipset For The P4? – Memory Problem: DDR333 Is Still Rare on the Market. OK, in buying a new system, the big question is, the new Pentium 2500 will be 133 FSB and have incredible memory throughput for video but use RDRAM which looks like a dead end. The alternative is to wait for the 850E or get the 845Sis which supports DDR333 that ahs 2.7GB/s vs. RDR 3.2GB in dual mode.