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Technology Stocks : Intel Corporation (INTC)

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Nov 21 9:30 AM EST

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To: Scumbria who wrote (69132)	11/25/1998 3:29:00 PM
From: Tenchusatsu	Read Replies (1) of 186894

<I still haven't figured out why anybody cares about RDRAM on the motherboard. I wish that someone could explain the theory behind it's benefits.> Considering that Katmai New Instructions include prefetching and cache streaming features, much of the latency of RDRAM can be hidden in KNI code. This means that bandwidth becomes relevant again, and no longer will latency be the sole bottleneck. Also, RDRAM is able to keep more pages open at a time, further reducing average latencies compared to SDRAM. Finally, Camino will be the first chipset to support AGP 4x mode. Having RDRAM to feed both a 133 MHz processor bus and an AGP 4x device can't hurt. Sure, you can join two SDRAM modules in parallel to achieve the equivalent bandwidth, but in a desktop system, this isn't as elegant as a single RDRAM channel, and the two SDRAM modules are still going to have the same number of pages as a single SDRAM module. (When you join two SDRAM modules together, the page size doubles; the number of pages stay the same.) Tenchusatsu

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