MacBook Pro 15 or ASUS UL80Vt which require users to switch manually. The major foreseeable benefit of this is longer battery life even when the system is using the discrete card, and ASUS touts 12 hours with the automatic solution turned on. No word on price or availability, but we're guessing ASUS will have more details soon and that we'll start seeing this this in more and more laptops as NVIDIA spreads the love around to the rest of the industry.
Update: We jumped the gun here, we've actually seen this new automatic switching technology in the recently announced Sony Vaio Z.
ASUS UL80JT spotted with automatic switchable graphics, brags 12 hour battery life
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