Author: Aaron Gordon
Date: 09:58:16 11/12/02
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On November 11, 2002 at 09:34:13, Aaron Gordon wrote: >Vincent.. you said: >>>Looks like a big joke statement to me. Those processors aren't >>>even in the same league competing, also parallel performance >>>of the I3 will completely blow away that opteron on the left >>>and right of course. > >How do you figure? The Opteron has hypertransport. It gets the full bandwidth >per CPU, not shared like most other systems. This means in a Quad Opteron EACH >cpu gets 3.2gb/s w/ PC3200 ram. 3.2gb/s * 4 = 12.8gb/s > >Also you won't need to rob Fort Knox to buy one, either. :) Heh, once again I post while I'm not in the right state of mind (just got out of the hospital). Need to correct myself. Sorry, the Clawhammer will get 3.2gb/s each (on PC3200) and 12.8gb/s total on a Quad system. The Opteron has Dual Channel DDR (QDR / DDR-II) and will get 6.4gb/s (200fsb QDR) per CPU on a Quad system and 25.6gb/s total. Since both the Clawhammer & Opteron both have on-die memory controllers and the transfer efficiency should be extremely high (my AthlonXP for example is 94% of max theoretical bandwidth, Hammers should be even closer to 100%). They'll almost undoubtedly get nice speedups due to each cpu having a ridiculous ammount of bandwidth. Can the Itanium top this? I haven't seen any new Itanium specs but I'm going to doubt it can.
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