Paul Tiwana <[log in to unmask]> wrote:
> Is Intel Pentium Celeron 500 is as fast as the regular intel Pentium 500.
> If not , is it equal to P 400 or P 450.
> Pl advise.

This is a difficult question. I assume you mean Pentium II in the 400/450/500
range. The original Pentium "Classic" stopped at 233.

The Celeron (Celeron I in this case) is based on the same basic core as the
P-II, however, where the P-II has a larger L2 cache (512K), it runs at half the
speed of the CPU. So a P-II/450's L2 cache runs at 225Mhz. The Celeron (300a or
greater, the original Celeron 300 had NO onboard L2 cache) has only 128K of L2
cache, but it runs at the same speed as the CPU.

So the bottom line is that Mhz for Mhz, the P-II and Celeron I are probably
pretty close to each other. Some applications may run slightly faster on the
P-II than the Celeron, but not by much.

The only other difference is that while the P-II is fully advertised as being
SMP capable (running dual processors on properly equipped motherboards), the
Celeron is not spec'd as such, although the PPGA package Celeron CAN run in dual
processor configs with the right motherboard (Abit BP6 and MSI 694D Pro). The
Slot 1 Celerons need delicate modifications to the SECC package to accomodate
SMP operation.

The newer processors, the P-III and FCPGA Celeron are based on the Coppermine
core. The P-III has 256K at speed cache, and is dual CPU capable. The FCPGA
Celeron (533a and higher) has 128K at speed cache, but is NOT dual processor
capable.

In order to keep this brief (hah!), I will omit the Katmai, P-IV, and Xeon
processors for now.


--
Russ Poffenberger               Engineering Specialist
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