If clock speed is a primary concern, you probably don't want an ultraportable. It's one of the tradeoffs with having a smaller, more portable machine. Sure, s

If clock speed is a primary concern, you probably don't want an ultraportable. It's one of the tradeoffs with having a smaller, more portable machine. Sure, some will do better or worse, but if you NEED the extra processing power, there are better alternatives. For ultraportables, a good-enough processor is usually good-enough.