Thank you for taking the time to comment.
I used to work with an AMD64 3200+ and 1GB of ddr ram (400), nowadays it's 3 GB of ram and a lot of harddisk space for backup,
Photoshop scratchdisk etc. I experience as good as no freezing at all, Photoshop/my PC crashed when working like 2 times during the 3 years i work with Photoshop. I sometimes work up to 8k or 10k pixels in width (for print), but that's where my pc gets in trouble when using too many layers etc.