Officially from
Microsoft, the requirements for Release Candidate 1 of WinXP is as follows (these are preliminary):
[*]PC with 300-MHz or higher processor clock speed recommended; 233 MHz minimum required (single or dual processor system)
[*]Intel Pentium/Celeron family, or AMD K6/Athlon/Duron family, or compatible processor recommended
[*]128 MB of RAM or higher recommended (64MB minimum supported)
[*]1.5 GB of available hard disk space
The minimum requirements for Win98SE were a 486DX/66MHz with 24MB RAM. I wouldn't want to try
that out. So, of course, if you actually want to get anything done, you probably would want to have a PIII 600 or better.
Read a review of RC1 from
CNET.