A good deal. Shortly after the release of the GeForce GTX 670MX and GTX 675MX, Nvidia is unleashing another Kepler graphics card into the race. Contrary to its high-end brothers, the GeForce GT 645M is intended for serving the high turnover mid-range. The 15 inch Nexoc M507II is one of the first devices based on this fresh 28 nm GPU.
http://www.notebookcheck.net/Review-Clevo-W251EG-Barebones-Notebook.84092.0.html
Nice review and nice "bare bones" unit - too bad the company doesn't acknowledge that it made it nor do they supply drivers. So, in time one sees that the company does not back-up their products.