One of the problems with buying a notebook as a gaming machine is that most mobile PCs don't allow much in the way of upgrades. Once that GPU starts to spit and sputter on the latest titles, you might as well toss the whole thing in a river, or chuck it up on Craigslist if you can stomach the depreciation and inevitable lowball offers. External graphics has long been a promising solution to this dilemma, particularly since most notebooks do allow for CPU and RAM upgrades. It sounds great on paper, anyway, but
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