NVIDIA recently revised its notebook GPU lineup, but there was one part notably missing – the GTX 680M. The x80M part has been NVIDIA’s fastest mobile GPU in each generation for some time, so we knew that a GTX 680M was coming. We had only two questions. When? And what architecture will it be based on?

Now we have the answers to both questions. NVIDIA has pulled the wraps off its flagship component. The new GTX 680M is a Kepler component (unlike other high-end 600 series parts, which are Fermi) packing 1344 CUDA cores and up to 4GB of GDDR5. 

The green team is laying out some big numbers in its press release by claiming that performance is up about 80% in comparison to the GTX 580M and 30% in comparison to the AMD Radeon 7970M. NVIDIA also says that the new part will play every game available today at 1080p with maximum in-game settings. 

Other selling points include NVIDIA’s FXAA and TXAA, Adaptive V-Sync, Optimus, SLI, PhysX and 3D Vision. The company is clearly making a strong effort to distinguish itself from AMD not only with performance but also with features. 

Five launch laptops were announced. They include the Alienware M17x and M18x, the MSI GT70 and the Clevo P150EM/P170EM. The Clevo units are the chassis used by companies like Maingear, Origin and other boutiques. Only the M18x has confirmed SLI support and only the M17x has confirmed 3D Vision support. Pricing has not been announced. 

We will of course be looking to obtain a review unit so we can see if the GTX 680M is as mightly as claimed.