I have a (quite) new Acer 7750G Notebbok (Intel Core i5 2410M, 4 GB DDR3 1333 MHz, Intel HM65 Express Chipset) running Ubuntu 10.04 LTS. I gave to a friend of mine my older Desktop PC (Asus Termninator T2-AE1, Amd Athlon 64 3200+, 1.5 GB DDR 333 MHz, K8ST Chipset) previously running Windows XP now proudly running Ubuntu 10.04.
I cannot explain why that old piece of hardware run almost fast as mine. Is Linux that miraculous? :-)