Re: How does an 800Mhz celeron compare to lower speed Pentium II etc ?

Ian Roberts wrote:
"Ian Roberts" <sorry@xxxxxxxxxx> wrote in message news:df2hdo$rfo$1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Hi

I'm not sure if this is the best place to ask but didnt know where else to try...

Just wanted to find out where an 800Mhz Celeron would be placed in a hirearchical chart compared to early Pentiums, Pentium II etc etc.

I'm not entirely clear what distinguished the Celerons from Pentiums (no on chip cache?).

But once the speed of the celerons rocketed, I got confused as to which would be a faster processor in everyday use - how do they rank when compared to a lower speed Pentium II, III?

Thanks for any info

Ian 

Ahh - just in case anyone else is interested I found one here:

http://www.tomshardware.com/cpu/20041221/cpu_charts-10.html#overview_of_all_intel_cpus

Cheers



Sorry I missed the original post but to answer your question, the celeron 800 is significantly faster than anything in the P-II line, which you know from the chart you've found.

As for the difference, the desktop P-II has 512K of 'slot' cache (the entire reason for the slot cartridge to begin with) running at half the speed of the processor whereas the celeron has 128K of on-die cache running at the full speed of the processor (post 300, 300A first with cache). They're the same core.

The full speed cache compensates for the smaller amount and the first 'magic' overclocker was the Celeron 300A/66Mhz FSB which would easily do 450 overclocked to the standard 100MHz FSB and bench equal to the 'top of the line' P-II 450. A stock celeron 466, however, is not quite as fast due to the lower 66MHz FSB starving the full speed cache.

Your 800, however, is already running 100MHz FSB so it would compare well with an equivalent P-II if such a thing as an 800MHz P-II existed.

The celeron looses it's 'equivalency' with the coppermine P-IIIs as they use twice as much, 256K, of the same on-die full speed cache and are about 20%, or so, faster clock for clock.

.

Relevant Pages

  • Re: Which Toshiba M55? S3292 or S139 at Office Depot?
    ... Both the change in power supply capacity and the change in FSB are within the definition of "same computer with different CPUs", which includes "Same computer, one with Pentim 4 or Pentium M, other with Celeron or Celeron M". ... : Actually, you have it backwards: The 15 volt models were "real" Toshiba: models, and the 19 volt models were: designed and built for Toshiba by Compal, and were significantly lower ...
    (comp.sys.laptops)
  • Re: Need P2B-S mod help
    ... want it to work, so, I got a 1.3 Celeron. ... Tualatin P3 as opposed to Tualatin Celeron doesn't really provide any benefits, other than the advantage due to higher fsb, which you can easily get with the lower-clocked celerons by overclocking. ... P3-S has two times the cache, which is nice but may be overpriced for the modest performance advantage. ... newer clock chips, as well as vrm which go down to 1.3V. ...
    (alt.comp.periphs.mainboard.asus)
  • Re: Need P2B-S mod help
    ... want it to work, so, I got a 1.3 Celeron. ... Tualatin P3 as opposed to Tualatin Celeron doesn't really provide any benefits, other than the advantage due to higher fsb, which you can easily get with the lower-clocked celerons by overclocking. ... P3-S has two times the cache, which is nice but may be overpriced for the modest performance advantage. ... FYI datasheets for most ICS clock generators are still available here: ...
    (alt.comp.periphs.mainboard.asus)
  • Re: Fastest CPU?
    ... "It just says it will work with a 2.0GHz Celeron." ... CPU technology as it moves forward. ... The fastest 400MHz FSB Pentium 4 is 2.4GHz, ... site is moot as to what speeds the BIOS will support. ...
    (comp.sys.hp.hardware)
  • Re: HP Vectra VL420 with Celeron D possible?
    ... Best case is that the BIOS ... >Best to make sure that whatever Celeron D you buy runs at 400MHz FSB. ... >>I own a HP Vectra VL420 with P4B-MX motherboard. ...
    (comp.sys.hp.hardware)