100 vs. 133mhz.

[Chu]

Wondering, is there a big proformance difference between processors running at the same MHz, but different FSB speeds? I'm thining up upgradring my celeron 533 fcpga to a higher speed pentium, but wondering to get a 100 mhz and overclock it or go for native 133 and pump it up a bit more (i got some good quality sticks). The $20-$30 different doesn't mean much to me if I can get a decent jump.

-Chu

 

[Biggs]

There is quite a difference especially if you're into gaming(i.e. Quake 3). But for ordinary Windows stuff, there hardly is.

 

[Rand]

For memory intensive/bandwidth intensive apps there is a huge difference. I'd say it's undoubtedly worth going with the 133MHz FSB chips.

 

[hitchhiker]

I would go with a 100MHZ and overclock it. For instance, a P3 700 100 FSB running at 133 is 933MHZ. A P3 733 133 FSB is still 733. The 700 is obviously faster. If you overclock the 733 to say 145 FSB (if it would), you would be running at 798. The same 700 running at 145 FSB (again if it would) you would be at 1015. There are 700's that will run that fast. Check the FS/FT and look for Compuwiz1. He sells pre-tested CPU's that will run like that.

 

[kw3i]

100 fsb is the way to go i think, i was confused about this subject myself actually: /

 

[jeremy806]

Well, I currently run a Celeron533A@800, and I still think that the FSB is the limiting factor in my system for things like Q3A. If I were you, I would give a shot at OCing that Celeron before buying anything new.

If you really just want a new P3, it's a tough call.

If you just want it to work, 100% certain, just buy the 933. If you don't mind potentially being stuck at 700 but would like to attempt 933, buy the 700. Most people get it to work at 933.

As for 133 FSB, I would guess that it is the way to go. However, you better make sure that your motherboard has the proper PCI and AGP dividers. Some people have luck at 89 AGP assuming the PCI is correct, but at least know what you could be getting into. I know that I would be mad as hell if I bought a new CPU only to find out that I had go blow another 100 or so on a motherboard.


good luck, jeremy806