My brother has been struggling by with a Pentium II 266 overclocked to 300. Today someone gave him a case with a motherboard and a Celeron 400. The question is would the celeron be much faster, all other things being equal? We are thinking we might be able to migrate his hard drive, memory, and so forth to the celeron and come up with a better/faster computer. I know celerons are supposed to be easily overclocked too. I'm going over tomorrow to check things out, and I won't know until then what the "new" motherboard is, whether the memory will work in it, etc. Suggestions and information appreciated.

well i don't know what you really want anyone to say about this post, but i can't read it without wright back. i really don't think that you should be overclocking a celeron or any other CPU like that. it will really kill the life of the chip, and in its last few mounths will in fact make it go slower. as for the rest of your post, just make shore you know what form facter the motherboard is and what kind of memory it takes the rest should all go in there fine. best of luck to you and i hope this helped a litte.

The Celeron has always been a bargain chip. The PII 266 runs at 66Mhz bus w/512k cache. The Cel 400 runs at 66Mhz bus w/128k cache. Looks like a wash. Cache does influence performance and the PII has 4x of it. I don't think you'll see a difference. It might even be slower. -DF ABIT NF7-S v2.0 2500+@2200Mhz(11x200) 512MB HyperX(2-2-2-11)

Replacing the pentium II with a celeron is a BAD option, the cache makes a big difference.

Thanks for the responses. Sounds like my brother should just leave well enough alone and continue with the Pentium II system until he can afford a real upgrade.