ATA100 v ATA133 & Intel celeron v Intel P4

Hi ive got two questions...

1 - What is the practical difference between ATA100, and ATA133 (both 80GB, 7200 rpm) - which is better and is one more compatible with older systems etc? Both seem similar in price so which would be recomended for a new system?

2 - What are the relative merits of the following chips:

Intel Celeron 2.6GHz, Socket-478, Boxed
Intel Pentium 4, 6.6GHz (478-pin), 533 MHz Bus

The P4 is twice the price of the celeron what i want to know is do i get anywhere near twice the performance? Or are there other pros/cons i should be aware of?

Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

1) If you have an ATA133 capable motherboard or IDE board AND if you have appropriate drivers for your operating system to support ATA133, then you MAY get slightly better performance.  The problem (assuming that all of the other conditions are met) is that most drives in the "consumer" variety today cannot sustain ATA133 speeds so you don't really get full benefit from the bus speed.  Most benchmark tests show that ATA100 and ATA133 drives perform about the same.  You often get MORE benefit from an 8MB onboard cache.

2) There is NO P4 6.6GHz chip on the market now or even announced.  So I'd stay with the Celeron 2.6GHz!!  If you mistyped and meant the P4 2.6GHz, I'd say save the money and go with the Celeron unless you are needing the SLIGHT extra speed for some sort of analysis program or similar.  In general, these two chips perform about the same when running most applications.  In MY OPINION the P4 is NOT worth the extra money for what little REAL WORLD performance you get!

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
I agree wiyh jhance except if you are into heavy gaming or graphical development, in that case the P4 will be slightly better
Isn't that what I said already??

"...Celeron unless you are needing the SLIGHT extra speed for some sort of analysis program or similar"
chrishqAuthor Commented:
Thanks jhance quite right it was a typeo i did mean 2.6ghz :)
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.