Unless you've been living under rock in a cave deep underground for the last year, you'll probably have heard all the bells and whistles of NVIDIA's Scalable Link Interface or SLI for short. Despite all the marketing buzz around it, SLI is not for everyone. After one year of existence, SLI is getting easier to use and enjoys more widespread use, both among developers and gamers alike. In this article, we talk about why performance should never be the main reason for buying SLI - one fast card is still way better than two slow cards.

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