Cel Prescott

DCB_AU

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OK, you have a Cel Prescott 2.4Ghz 256 cashe S478, OC to 3019Mhz.

What would it be equivalent too in speed as a general rule,-

1) AMD,
2) P4 Northwood 512 cashe,
3) P4 Prescott with 1 M cashe,

Thanks,

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peteroy

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I say Pentium 4 Willamette 2Ghz

You can't just say AMD, AMD has more than one processor last time I checked, if you ask which AMD, then I say around Athlon XP 2100+

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Crashman

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I thought the Prescott Celerons were the "Celeron D" with 512k cache!

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DCB_AU

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No, the Bios reports 256.(2.4D 256 cashe {S478} on CPU sticker/box also).

Intel doubled the cashe from 128 to 256.

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Crashman

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I thought they doubled the cache from 128k to 256k when they went from the Williamette core to the Northwood core!

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Spitfire_x86

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No, Willamette and Northwood Celerons are exactly same. But Northwood Celeron overclocked much better, since it was made with 130nm process.

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Crashman

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And here I was thinking the Celeron used 1/2 the cache of it's Pentium counterpart!

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Xeon

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A AXP 3000+ on par with a P4C 2.8 not entirely true they should be close more favor goes to the 2.8, as well P4A's also were not Prescott's you mean J, there is probably more letters for the cores, but its been a while since I cared or looked.

On a side note to reiterate what crashman said; I am also certain that Prescott Celerons have 512L2, I also recall them being very comparative with the Semptron line which is in line with the AXP line last I checked.

Xeon

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Spitfire_x86

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Prescott Celerons have 256 L2 cache and 533 MHz FSB. They're very competitive with AXP based Semprons, because AMD reduced clock/PR again with Sempron series.

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Vapor

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If I were to hazard a guess. I would say:
Amd- about xp3000+, not quite up to A64 level
P4b- almost 3.06
P4c- about 2.8
P4a (prescott) 2.8
I'd drop all those down a notch or so.

Think about it this way: the 3.06b has a higher clock, twice the cache (and faster cache), a shorter pipeline, but a somewhat slower bus. So maybe the 2.8b. The 2.8a (Scotty) is about the same, so that stays the same. As for the P4c, probably a 2.6 and also a 2.6e if there were such a thing. Since the AXPs did match fairly well to the P4b's, that would knock that down to the 2800+ as well. That über-slow 256k L2 is REALLY hampering it.

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Xeon

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Oh ok thx for the info, I don't keep up as much with the new hardware deal, programming has begun to take up all my time.

Xeon

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endyen

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When I say almost, and about, I do mean not quite as good, but that that would be the closest actual chip.
Dont forget how little the P4s actually gained from the increase in cache from 256 to 512, or how much they gained from the increased bandwidth of the 200/800 fsb chips. He is running that thing @ 166/666 fsb, so he is getting 25% more bandwidth than the P4b chips.

For xeon, the P4a 2.8 is a prescott with an fsb of 133/533.