AMD has had switchable graphics technology with their mobile GPUs for a while now, with solutions like the original HP Envy 13 from two years back and Lenovo’s T400 in late 2008. NVIDIA’s switchable graphics was first seen in Sony’s VAIO SZ around August 2008, requiring a reboot when switching modes. Since then, we’ve gone from hardware-based switching with a required reboot, to software-based switching on-the-fly, and now we’ve got dynamic switching based on application needs in the form of NVIDIA’s Optimus Technology (first launched in early 2010 and now seen in over 100 different laptops from every major OEM). AMD also has a dynamic graphics switching technology, called AMD Dynamic Switchable Graphics (and apparently doing away with the PowerXpress brand), debuting with the...

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