Yousuf Khan said:
Derek Baker said:"Yousuf Khan" <[email protected]> wrote in message
I posted these and more, more than 11 hours before you, but my ISP is
having trouble with its newgroup feed, so noone else can see them.
Bastards!
This posted via Google Groups.
Ace's hardware seems to think that at 125 million transistors,
Prescott is hiding some circuitry inside it, which Intel hasn't
told us about yet. They come to this conclusion by adding up the
extra circuitry required by the 512K larger L2 cache, and the 8K
larger L1 instruction cache, and estimate that altogether this
should take Prescott only up 80 million transistors from the
Northwood's 52 million. So there's still 45 million transistors
unaccounted for inside Prescott.
RusH said:64 bit ? naaaa
Yousuf Khan said:
Yousuf Khan said:
I thought one of the more interseting comments from Anandtech is
that going from 2.8gz up to 3.2ghz Prescott narrows the gap (or
increases the lead) with Northwood at each successive higher
frequency. They extrapolate that Prescott at 3.6ghz and above
might be a better indicator of why the internal changes were
made from the Northwood core.
(e-mail address removed) (G) wrote in
Am I the only one that sees the FSB impact here ? OCing from 2.8 to
3.2 = 230Hz FSB - thers your speed
Except he wasn't overclocking the FSB, but using a chip with a
different multiplier. It seems likely it's the cache that makes
the most of the difference. The bigger the difference between
main memory speed and cache speed, the more important it is to
have a large cache.
Yousuf Khan said:I'm sorry, but it's not like as if my ISP is the model of high quality and
efficiency either.
Anandtech seems to think that the Prescott should only be purchased if
you're going to try to overclock to 4Ghz, otherwise go for Northwood. This
despite the fact that the Prescott uses up far more power than the Northwood
at the same frequency.
Ace's hardware seems to think that at 125 million transistors, Prescott is
hiding some circuitry inside it, which Intel hasn't told us about yet. They
come to this conclusion by adding up the extra circuitry required by the
512K larger L2 cache, and the 8K larger L1 instruction cache, and estimate
that altogether this should take Prescott only up 80 million transistors
from the Northwood's 52 million. So there's still 45 million transistors
unaccounted for inside Prescott.
Tom's just seems annoyed by Prescott for some reason.
Yousuf Khan
Yousuf said:Ace's hardware seems to think that at 125 million transistors,
Prescott is hiding some circuitry inside it, which Intel hasn't
told us about yet.
I thought one of the more interseting comments from Anandtech is that
going from 2.8gz up to 3.2ghz Prescott narrows the gap (or increases
the lead) with Northwood at each successive higher frequency. They
extrapolate that Prescott at 3.6ghz and above might be a better
indicator of why the internal changes were made from the Northwood
core.
prove me wrong, dont yust say it
http://images.anandtech.com/reviews/cpu/intel/pentium4/prescott/cpuz3
700.gif
fixed 14x multiplier. Its normal processor, not an engeenering sample
with open multiplier.
Johnno said:That slide was just demonstrating the overclock potential - he
didn't include any benchmarks at 3.7GHz.
He tested 2.8GHz, 3.0GHz, and 3.2GHz versions of both Northwood
and Prescott:
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