Northwood vs Prescott

Working on old computer and have old question which I don't know
enough to decide. I'm hoping someone will know this:

A computer running with :

Pentium 4 Northwood, 512 KB cache but 800 MHz FSB

or

Pentium 4 Prescott, 1 MB cache but 533 MHz FSB ?

At same clock speed of 2.4 GHz, which computer will be the fastest
overall?

Thanks,
Claude

wrote in message
...
Working on old computer and have old question which I don't know
enough to decide. I'm hoping someone will know this:

A computer running with :

Pentium 4 Northwood, 512 KB cache but 800 MHz FSB

or

Pentium 4 Prescott, 1 MB cache but 533 MHz FSB ?

At same clock speed of 2.4 GHz, which computer will be the fastest
overall?

Thanks,
Claude

Running what software? If it fits in the 1MB but not the 512KB the
answer is obvious.

Del Cecchi wrote:

wrote:

Working on old computer and have old question which I don't know
enough to decide. I'm hoping someone will know this:

A computer running with :

Pentium 4 Northwood, 512 KB cache but 800 MHz FSB

or

Pentium 4 Prescott, 1 MB cache but 533 MHz FSB ?

At same clock speed of 2.4 GHz, which computer will be the fastest
overall?

Running what software? If it fits in the 1MB but not the 512KB

Pretty unlikely, of course.

the answer is obvious.

The Northwood is generally faster, at any given clock, even if the FSB
was the same.

On Jan 27, 8:00�am, chrisv wrote:
Del Cecchi wrote:
wrote:

Working on old computer and have old question which I don't know
enough to decide. I'm hoping someone will know this:

A computer running with :

Pentium 4 Northwood, 512 KB cache but 800 MHz FSB

or

Pentium 4 Prescott, 1 MB cache but 533 MHz FSB ?

At same clock speed of 2.4 GHz, which computer will be the fastest
overall?

Running what software? �If it fits in the 1MB but not the 512KB

Pretty unlikely, of course.

the answer is obvious.

The Northwood is generally faster, at any given clock, even if the FSB
was the same.

Thanks. Seems to run cooler too.

Claude

wrote:
The Northwood is generally faster, at any given clock, even if the FSB
was the same.

Thanks. Seems to run cooler too.

If the FSBs were reversed, I suspect the Prescott would be faster: Pentium 4
chips of any generation are much more sensitive to FSB speed differences
than either P3s were or Core2s are.

--
Nate Edel http://www.cubiclehermit.com/
preferred email |
is "nate" at the | "I do have a cause, though. It's obscenity. I'm
posting domain | for it."

wrote:

On Jan 27, 8:00�am, chrisv wrote:
Del Cecchi wrote:
wrote:

Working on old computer and have old question which I don't know
enough to decide. I'm hoping someone will know this:

A computer running with :

Pentium 4 Northwood, 512 KB cache but 800 MHz FSB

or

Pentium 4 Prescott, 1 MB cache but 533 MHz FSB ?

At same clock speed of 2.4 GHz, which computer will be the fastest
overall?

Running what software? �If it fits in the 1MB but not the 512KB

Pretty unlikely, of course.

the answer is obvious.

The Northwood is generally faster, at any given clock, even if the FSB
was the same.

Thanks. Seems to run cooler too.

Claude

Yes, Northwood ~70W, Prescott ~90W. Prescott increased the number of
pipeline stages from around 20 to around 30, but did some branch
prediction improvements to try to compensate for longer pipeline.
All in all, Prescott was a dog.