Author: Aaron Gordon
Date: 06:29:00 04/15/02
Go up one level in this thread
On April 14, 2002 at 12:43:32, Christophe Theron wrote: >On April 14, 2002 at 01:36:58, Aaron Gordon wrote: > >>On April 13, 2002 at 18:01:51, Christophe Theron wrote: >> >>>I think there has never been a P166. The first Pentiums to reach 166MHz were >>>MMX. So the processor Jorge is using is definitely a P166MMX. It also had a >>>bigger L1 cache than the regular Pentium. >>> >>>For Tiger the P166MMX was running as fast as a P200 (which has never existed, so >>>it's like twice the speed of a P100). >>> >>>On the SSDF list, Comet A90 P200MMX 64Mb hash is rated 2253. How does it compare >>>to the Comet version Jorge is using? >>> >>> >>> >>> Christophe >> >>There are the P54C and the P55C. The P54C (Classic, non-MMX pentium) comes in >>clock speeds of 75, 90, 100, 120, 133, 150, 166, 180(not 100% sure about 180) >>and 200MHz. 16k L1, 8kb data, 8kb code. The P55C is the MMX version of the P54C >>with 32k L1 (16kb code, 16 data). P55C's were released at 166, 200, 233 and I >>believe there was a 266Mhz version that was announced but I don't think it ever >>made it to desktops, only laptops. There were some 133/150's in laptops, though. >> >>To whoever thats interested.. When I can aquire a P55C I will test it against >>the P54C-200Mhz I have and a K6-233 that I could clock down to 200 for testing. > > > >OK, thanks for correcting me. > >I see than 166MHz is the start of the MMX series, not the end of the normal >Pentiums. > > > > Christophe No problem. You were pretty close though. I can see how one would think that though, I don't think any of the P54C-200's are CPGA(ceramic pin grid array)like the older P54C's. When I first got it I automatically assumed it was a P55C because it was a PPGA (plastic pin grid array) cpu. Then I noticed it didn't say "w/ MMX tech" and Wcpuid reported no MMX intstructions. :( I scanned some cpu's a while back and have a picture up on my FTP if you want to see what it looks like. ftp://speedycpu.dyndns.org/pub/overclockstuff/pics/scans/p54c-200.jpg
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