SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : Advanced Micro Devices - Moderated (AMD)
AMD 214.32-0.3%1:55 PM EST
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: Joe NYC who wrote (78463)4/26/2002 8:21:02 PM
From: pgerassiRead Replies (1) of 275872
 
Dear Joe:

Did you look at the slides in the meeting presentation? Clawhammer SCSC gets 135% of the memory bandwidth of AXP at the same clock. Thus, since AXP gets 2.1GB/sec, Clawhammer gets 2.84GB/sec with PC2100 as base effective. With PC3200 (you know this is available now), Clawhammer would get an effective 4.46GB/sec faster than NW@133/533 dual DDR PC2100 or 4.2GB/sec. Clawhammer thus will have higher effective bandwidth than NW. Opteron (DCSC) gets 205% of AXP or 52% more than Clawhammer. It would get an effective rate of 4.3GB/sec with PC2100 and 6.56GB/sec with PC3200.

Clawhammer (suggested name Athlon XP64) will have enough effective BW to outrun NW. Yes, I know that Opteron (Hammer DCSC) trumps NW in spades even in 1 way workstations.

Pete

PS: In a previous post Itanium 2 is said that the memory expansion controller will double bandwidth to 12.8GB/sec. That means that normal bandwidth is 6.4GB/sec for Itanium 2 systems. Single Opteron DCSC will have a higher effective BW than Itanium. 2 way Opteron will outrun the maximum of an Itanium 2 SMP system. More than 2 way Opteron systems would pulverize Itanium 2 systems in BW limited tests like SPEC. When DDR2 becomes widely available with speeds on the roadmap to 800MHz, even Clawhammer would have more bandwidth than Itanium 2, All Opteron systems of any number of ways including single way would beat Itanium 2 systems.
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2025 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News