<p>Pentium M is efficient in that it trades battery life for performance. A 2.0Ghz M would perform better than a 3.33 Ghz P4 compared to how much power it's using, but for overall performance, the P4 is unbeatable. What I really wanted was a hardcore gaming laptop, so I initially looked at Alienwares, which I realized were horrendously expensive. Every gaming laptop seemed to be well over $2000, until I saw a Toshiba with virtually the same specs for under $1500. I don't really mind the power drain, considering I'll be plugged in all the time, either in my room or at the library.</p>