Author: Rajen Gupta
Date: 02:58:16 01/17/99
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Dear bob: perhaps the lifespan of the chip may be reduced, but as I have spent only £60 on I'mm not too concrened becuse by then I would probably have moved much to much further speeds (hopefully againby overclocking) Rajen Gupta On January 16, 1999 at 21:21:07, Robert Hyatt wrote: >On January 16, 1999 at 18:31:18, Rajen Gupta wrote: > >>I recently built a new computer with 128megs ram and the celeron 300A processor >>(great buy at £60)which i have successfully overclocked to 450 MHz.It has been >>running stable at this speed (I ran F5 and CM5000 simultaneously, continuously >>overnight for last 3 nights to test the stability of the overclocked chip.) I >>got the following values for fritz mark and junior mark: >> >>FRITZ MARK short 316 KN/sec=392 (16 Mb hash tables) >> >>FRITZ MARK long 291 KN/sec=434 (96Mb hash tables) >> >>JUNIOR MARK short 307 KN/sec=381 (20 mb hash tables) >> >>JUNIOR MARK long 332 Kn/sec 373 (96mb hash tables) I wonder how these values >>compare with a genuine pentium ll 450 or 400 MHz or even a top of the line AMD >>K6? would the extra 512 kb of cache running at 1/2 speed out perform 128 kb >>running at full speed? I wonder if people with such systems could let me know? >>even perhaps a comparison could be made between Cel A vs pentium ll vs AMD for >>different programmes. Interestingly CM5000 calculates 25-28000 posn with every >>blink.I'll try to boost this chip to 500mhz and if it runs stable I'll post >>figures at this speed as well. >> >>Rajen Gupta > >Two parts to this answer. The celeronA can be better than the PII, but it >depends. The PII at 450 has 512kb of L2 cache running at 225mhz. The >CeleronA has 128kb of L2 running at 450mhz (assuming you overclock to 450mhz). > >That may or may not make it faster. For small compact programs (ie like Fritz) >this might be a better deal. > >But be aware that when you overclock temperatures rise. And the L2 cache is >really taking a beating. Although I really believe that the L2 in the celeron >is the same type technology as in the 450, so it probably won't hurt it much. > >But I'm not a big overclocking fan. ON the linux SMP kernel mailing list, I >hear horror stories every day about how this causes odd behavior... and causes >problems that are not always 'solid'.
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