Author: Vincent Diepeveen
Date: 12:28:29 12/30/01
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On December 30, 2001 at 12:35:29, Brian Katz wrote: For diep benchmarks see aceshardware.com K7 is blowing away the P4 (with rdram). Rdram has big bandwidthbut that is nothing compared to its huge latency. nevertheless right now RAM says less than cpu speed. the P4 has huge penalties for branch mispredictions. like 50% more at least than the K7. That's what makes the real difference, together with the biggest factor: CACHE SIZE. P4 can have like 8000 instructions in cache. K7 has 128KB L1 cache. that's huge difference, even when instructions are long and complex! > I have recently asked many questions regarding Pent 4 2.0 Gig vs the Athlon >1900+, and have received many replies. Thank you. It is greatly appreciated! > The general consensus is that the Athlon 1900+ outperforms the Pentium 4 2.0 >Gig by far when run with most chess programs. > I was just speaking to a technician at a local PC store about this issue. >His view is that all the tests between the Athlons and the Pentium, where the >Athlons were scoring better, were with the Peniums using only SDRAM instead of >models using the faster RDRAM. He insisted that the bottleneck caused by using >the SDRAM was one of the reasons. He also stated that with RDRAM where you can >have BUS Speeds of 400-600 ( Athlon only 266) should allow the Pentium 4 to blow >the Athlon away. > He did go on to say that the Pentium will have a 3.5 GIG processor in about a >years time. (Yes he said 3.5 GIG) >He also went on to say that the Athlon Motherboards were a bit unsteady and >caused some problems. > I just happened to ask about getting the new Athlon 2000+ when it is >available, and would it be possible to upgrade to a DUAL 2000+ Processor? That >is when he said the Athlon Motherboards are unsteady when purchasing the >moterboards. However, the Manufacturer made computers with Athlons seemed to be >fine. > > I am ready to go out and Purchase an Athlon 2000+ as soon as they become >available, perphaps they already are. > If anyone can shed some light on any of the issues, it would greatly >appreciated. > >Thank you and Happy New Year to everyone!!
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