Author: Bob Durrett
Date: 11:36:26 12/21/02
Go up one level in this thread
On December 21, 2002 at 12:27:24, Matt Taylor wrote: >On December 21, 2002 at 10:18:30, Bob Durrett wrote: > >>On December 21, 2002 at 01:17:52, Matt Taylor wrote: >> >>>On December 20, 2002 at 15:59:23, Bob Durrett wrote: >>> >>>> >>>>I guess everybody is agreed that Athlon is the "choice of chess champions," so >>>>to speak. I guess I'll have to buy one next month, or maybe February. >>>> >>>>Is the AthlonXP 2.52 GHz the latest? I suppose not. What is, or will be by >>>>February 2003? Who sells it? Compaq? Dell? IBM? Hormel? >>>> >>>>Better yet, if someone would care to provide all the procurement specs, I'll buy >>>>one for everybody. [Just kidding.] >>>> >>>>Bob D. >>> >>>In March, the latest will be the AMD Clawhammer/Opteron (I hope!) which will be >>>sold under the name "Athlon64." This is the K8, the next generation. >>> >>>Another point which seems agreed on by most people here is that chess programs >>>are hurt by latency (because of hashing). The K8 sports a lower memory latency. >>>For this reason, AMD estimates it will be 25% faster than current Athlons in >>>32-bit code clock-for-clock. Since the K8 should be releasing at a clockrate >>>on-par with the current Athlons... :-) >>> >>>-Matt >> >>Now THAT was a good answer! Gets right to the point! Super. >> >>I will wait for the Athlon64 and then become a "happy camper" when it arrives. >> >>Presumably, there is only one kind of RAM available for the Athlon64? If not, >>which best for chess? Any other suggestions? >> >>Thanks a bunch. >> >>Bob D. > >All the discussion I've heard seems to indicate that DDR SDRAM is best for >Chess. Conveniently, that's all the K8 will likely accept. > >One interesting point here is that, in previous generations of chips, the type >of ram a board could accept was based almost exclusively on your chipset. In the >transition period between SDRAM and DDR SDRAM, several co.'s released chipsets >that could accept both. The K8 moves the northbridge on-die. That means the ram >it will accept is based exclusively on the chip itself. > >AMD is committed to DDR SDRAM, so we probably won't see any RDRAM K8 chips. The >initial launch will support pc2700 DDR. Sometime next summer, DDR-II will start >appearing, and AMD has plans for a K8 that accepts DDR-II at that time. (DDR-II >is faster and completely backward compatible AFAIK.) > >-Matt I should wait till next Summer? I could, I guess. : ( How much difference do you think DDR-II will make over DDR SDRAM for chess engines? Any idea on that? Latency predictions = ? [Bandwidth mean anything here?] Bob D.
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