Though the first Tegra 4-enabled devices like the Shield have yet to hit the market, Nvidia is already trumping its next-generation mobile processor, codenamed Project Logan. Today the company revealed that its upcoming mobile chip will utilize the same Kepler graphics architecture found in its latest desktop and laptop GPUs, bringing graphics that exceed PS3 and rival current PCs to smartphones and tablets.

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To show off the potential of Project Logan, Nvidia has released footage of the chip running its advanced facial animation demo "Ira," which had previously been used to demonstrate the GTX Titan — the company's $1,000 desktop GPU. While some of the demo's more sophisticated effects had to be scaled back for Project Logan, the results are nonetheless impressive. The company has also partnered with Epic Games to demonstrate Unreal 4-powered PC games running on Project Logan at this week's SIGGRAPH conference in Greece.Most importantly, Nvidia says Project Logan is energy-efficient, capable of running at levels within "the mobile power envelope" and even at one-third the wattage of current tablet GPUs, such as the A6X processor found in Apple's iPad.To learn more about how Nvidia is bringing Project Logan to life, check out the company's official blog

Scott Lowe is IGN's resident tech expert and Executive Editor of IGN Tech. You can follow him on Twitter at @ScottLowe and on MyIGN at Scott-IGN