Date: Wed, 17 Mar 1999 11:30:30 +1030 From: Greg Lehey <grog@lemis.com> To: Tom Embt <tom@embt.com>, freebsd-hardware@FreeBSD.ORG Subject: Re: P-II vs K6-2 Message-ID: <19990317113030.P429@lemis.com> In-Reply-To: <3.0.3.32.19990316144457.0070c540@mail.embt.com>; from Tom Embt on Tue, Mar 16, 1999 at 02:44:57PM -0500 References: <26656.921575352@critter.freebsd.dk> <199903160902.KAA23875@cicero1.cybercity.dk> <26656.921575352@critter.freebsd.dk> <19990316074818.A23561@ice.cold.org> <3.0.3.32.19990316144457.0070c540@mail.embt.com>
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On Tuesday, 16 March 1999 at 14:44:57 -0500, Tom Embt wrote: > At 07:48 AM 3/16/99 -0700, you wrote: >> On Tue, Mar 16, 1999 at 10:09:12AM +0100, Poul-Henning Kamp wrote: >>> In message <199903160902.KAA23875@cicero1.cybercity.dk>, "Rudy Gireyev" > writes: >>>>> In message <99Mar16.183042est.40331@border.alcanet.com.au>, Peter > Jeremy writes >>>>> : >>>>>> I'm looking at buying a new system to augment my aging 486DX2-50. >>>>>> >>>>>> Would anyone like to comment on either a Tekram P5MVP-B4 with a K6-2 >>>>>> processor, or a Tekram BX-series with a P-II? (I prefer the K6-2 >>>>>> because I see no reason to support Intel's virtual monopoly). >>>> >>>> Then surely you've looked at buying Celerons first, right? :-) >>> >>> No, they're almost twice as expensive for the same performance... >> >> Not the same performance, nor are they twice as expensive (almost or >> not)... >> >> Performance wise, Celeron runs its cache at full CPU speed--not the Bus >> Speed (usually around 100Mhz now). Plus you can trivially overclock >> it to 467Mhz (this is what I've done). > > [snipped rest of post] > > I must also defend the Celery 450A :) > ... > > The L2 cache on the Celly's does, as Brandon said, run at full core speed. > So forget the people that laugh at the Celeron because it only has a puny > 128KB of L2. A 450MHz Celeron's L2 is running at 450MHz, whereas a 450MHz > Pentium-II's cache is running at 225MHz (real P2's run it at half core > speed, not bus speed as some people think), and a 450MHz K6-2's cache is > running at 100MHz (assuming a Super-7 board). And if you're so inclined, > Abit just released some BIOS images that let you tweak the timings of the > L2 cache as well. Whether you get better performance out of a small, fast L2 cache or a larger, slower one depends entirely on the application. It would be really interesting to see some figures here instead of theory. Greg -- See complete headers for address, home page and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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