Dell D600 comes with these spec: Processor Chipset Type Intel 855PM Data Bus Speed 400 MHz Processor Intel Pentium M 1.4 GHz Networking Compliant Standards IEEE 802.11b Data Link Protocol Ethernet, Fast Ethernet, Gigabit Ethernet, IEEE 802.11b Wireless LAN Supported Yes Networking Network adapter Operating System /

Asus UL20A-A1 comes with these specs : Processor & Cache Memory : Intel® Core™2 Duo Processor SU9400 : 1.4 GHz Intel® Core™2 Solo Processor SU3500 : 1.4 GHz Intel® Pentium® M Processor SU2700 : 1.3 GHz Intel® Celeron® Processor L723 : 1.2 GHz Operating System: Genuine Windows