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To: Scumbria who wrote (134250)5/6/2001 2:33:35 PM
From: fyodor_  Read Replies (1) | Respond to of 186894
 
Scumbria: i820 performs slower than i815. Obviously RDRAM has problems.

i820 just plain sucks - and not all of it is the DRDRAMs fault. Some of it is - mainly the latency.

As everyone and their dog could tell, i820 never made any sense. There was no way that increasing the memory bandwidth, without increasing the CPU bandwidth, was going to speed things up significantly. And when you combine that with worse latency...

(the latency stemming from a double punch, with the fundamental latency of DRDRAM being worse, along with the i820 having to run the FSB and memory bus async, which also adds to the latency)

-fyo