NVIDIA GeForce GTX 680M SLI: specs and benchmarks
NVIDIA started GeForce GTX 680M SLI sales 4 June 2012. This is Kepler architecture notebook card based on 28 nm manufacturing process and primarily aimed at gamers. 2x 4 GB of GDDR5 memory clocked at 3.6 GHz are supplied.
It provides poor gaming and benchmark performance at 18.94 percent of a leader's which is AMD Radeon R9 390 X2.