I have an AMD 3400+ Athlon, with 1.25 GB RAM. My previous PC was an Intel P4 2.0 Ghtz with 756 Gb Ram. To be brutally honest I cannot say I notice any difference in performance. I went for the Athlon when I got my new PC solely to be ready for the new 64 bit version of Windows when it is released. Word has it this will only be released to OEM manufacturers, and whilst it it will be possible to obtain an OEM copy, there will be no support from MS for end users.