P4 FSB a b c 2.8c 2.8b 2.4b 2.4c e.t.c. what does it mean? + list of p4 temps?

P4 FSB A B C 2.8c 2.8b 2.4b 2.4c e.t.c. what does it mean?

as in, what does a b and c indicate?

is it the case that for northwood core.
b -- 533 FSB
c -- 800 FSB

the rest isn't so clear to me. Is there a reasonable list?

I use the wikipedia microprocessor list (for p4) . But, it doesn't
include the letters. is there another?
Even when I type the model of a processor , like SL6PF in, it doesn't
give me whether it's "b" or "c".


And with that, is there a list of p4s and corresponding processor
temperatures?

thanks

wrote:
P4 FSB A B C 2.8c 2.8b 2.4b 2.4c e.t.c. what does it mean?

as in, what does a b and c indicate?

is it the case that for northwood core.
b -- 533 FSB
c -- 800 FSB

the rest isn't so clear to me. Is there a reasonable list?

I use the wikipedia microprocessor list (for p4) . But, it doesn't
include the letters. is there another?
Even when I type the model of a processor , like SL6PF in, it doesn't
give me whether it's "b" or "c".


And with that, is there a list of p4s and corresponding processor
temperatures?

thanks


Original Pentium 4 was Willamette (180nm). These were P4-1300 to
P4-2000 and they all had 400MHz busses. They shrank the design to the
next process (130nm) and called it Northwood. Northwood shipped P4-1600
to P4-3400 and came in a variety of bus speeds. Northwood at 400MHz
was P4-xxxxA, at 533MHz it was P4-xxxxB, and at 800MHz it was P4-xxxxC.
Then they decided to come out with a redesign and shrink to the next
process (90nm) called Prescott. Prescott ran P4-2600 to P4-3800 and
maybe even some slower versions. They came in 800MHz and 1066MHz busses
and gave this one P4-xxxxE. You only see the letter extension if there
are multiple versions (Willamette, Northwood, Prescott) or multiple bus
speeds (400, 533, 800, 1066) at the same core speed. They use the
letter to distinguish at a very coarse level.

So where did D go? Intel told me that letter had a bad connotation in
most cultures (an indication of poor performance). So they skipped it.
Well, E has a worse connotation at least in the west. I think they
were leaving D free so there wouldn't be confusion when they released
the Pentium-D brand name for dual cores and didn't want to field
questions about what the difference between a Pentium 4 3200D MHz
processor and a Pentium D 3200 MHz processor is.

Alex

wrote:
P4 FSB A B C 2.8c 2.8b 2.4b 2.4c e.t.c. what does it mean?

as in, what does a b and c indicate?

is it the case that for northwood core.
b -- 533 FSB
c -- 800 FSB

the rest isn't so clear to me. Is there a reasonable list?

I use the wikipedia microprocessor list (for p4) . But, it doesn't
include the letters. is there another?
Even when I type the model of a processor , like SL6PF in, it doesn't
give me whether it's "b" or "c".


And with that, is there a list of p4s and corresponding processor
temperatures?

thanks

http://www.intel.com/cd/channel/rese...ver/188734.htm

http://processorfinder.intel.com/


Everything you ever needed to know.


--
Cheerz - Brownz
http://www.brownz.org/

Brownz (mobile) wrote:
wrote:

P4 FSB A B C 2.8c 2.8b 2.4b 2.4c e.t.c. what does it mean?

as in, what does a b and c indicate?

is it the case that for northwood core.
b -- 533 FSB
c -- 800 FSB

the rest isn't so clear to me. Is there a reasonable list?

I use the wikipedia microprocessor list (for p4) . But, it doesn't
include the letters. is there another?
Even when I type the model of a processor , like SL6PF in, it doesn't
give me whether it's "b" or "c".


And with that, is there a list of p4s and corresponding processor
temperatures?

thanks


http://www.intel.com/cd/channel/rese...ver/188734.htm

http://processorfinder.intel.com/


Everything you ever needed to know.



Not everything. For one, it doesn't answer the poster's question about
letter codes on the speeds. The first one doesn't have anything older
than a 3.2GHz Northwood. The second one is very complete, but doesn't
use the marketting codes of A, B, C, E on the GHz.

Alex

wrote:
P4 FSB A B C 2.8c 2.8b 2.4b 2.4c e.t.c. what does it mean?

as in, what does a b and c indicate?

is it the case that for northwood core.
b -- 533 FSB
c -- 800 FSB

the rest isn't so clear to me. Is there a reasonable list?

I use the wikipedia microprocessor list (for p4) . But, it doesn't
include the letters. is there another?
Even when I type the model of a processor , like SL6PF in, it doesn't
give me whether it's "b" or "c".


And with that, is there a list of p4s and corresponding processor
temperatures?

thanks


thanks people