GeForce GTX 680MX Review
GeForce GTX 680MX is, at the moment (03-2013), the most powerful mobile GPU.
It was announced on the 24th of October 2012 by NVIDIA with the announce of the new 27-inch iMac.
It's equipped with the Kepler GK104 Core, featuring 1536 Shading Units and therefore related to the desktop GeForce GTX 680's chip. However, the clock frequencies are lower whereas the core-clock is of only 720MHz and the memory clock of 1250MHz.
Benchmarks indicate its performance is on level with desktop GeForce GTX 660 Ti and so even the most demanding games are expected to run at the highest settings. Only extremely demanding games, like Crysis 3, will require reduced visual perks, such as MSAA, to be played optimally.