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A laptop consumes up to four times less energy than a similarly equipped desktop PC does, according to PC World. As laptops eclipse desktops in buyer popularity, you'll be able to find models with powerful features that easily rival those of their desk-bound brethren. In fact, most laptops include options for dual-core processors, while some even squeeze in two video cards in a Scalable Link Interface configuration, perfect for those all-night fragathons.
If you've ruled out laptops because of their inflexible ergonomics and higher costs, consider a small-form-factor (SFF) desktop from companies such as Apple, AOpen, or Shuttle. Thanks to their petite size and reliance on energy-efficient notebook components, SFFs tend to guzzle less power than full-size towers. Just one downside: SFFs offer limited expandability, because many internal expansion and memory slots are omitted to save space.
In the market for a notebook? We've heard that the new Macbook Air ain't half bad.
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