Reply 60 of 67, by SPBHM
Another mystery solved. I bought a P3 733 chip with 133 fsb. I did this to keep the MHz speed as close as possible to what I had before. Guess what... the Celeron is a complete dog. The P3 wipes the floor with it, probably because of how it's also affecting memory and bus speeds to boot. Everything runs smooth at 1280 resolution. I may even put Halo on this machine.
This is like deja vu for me. I just had a breakthrough with another machine... a P133 that was failing to run something as crummy as Wipeout XL at 320 resolution... that is until I swapped it with a replacement CPU of the same type and speed and found out the first one must have been damaged but still working. Again the difference was night and day.
I have new respect for CPUs. It's not all about the GPU and RAM if your CPU blows chunks and the speed is no indication of anything. 700 sounds like a lot but my (properly working now) P133 can do a better job with UT99 and a voodoo card... barely.
when you consider that you are going to twice the l2 with higher bandwidth, and your ram is going from 66 to 133, yeah, I would expect some huge changes if the performance is being limited by that aspect (which is likely in this case)
now Halo, I'm not sure, I've had some really bad results trying to play some Xbox ports/multiplatforms with a p3 750 (I think NFSUG was specially bad), but I think I had a friend playing Halo with a p3 1GHz back when it was released OK.