NVIDIA GeForce GTX 660M: specs and benchmarks
NVIDIA started GeForce GTX 660M sales 22 March 2012. This is Kepler architecture notebook card based on 28 nm manufacturing process and primarily aimed at gamers. 1 GB of GDDR5 memory clocked at 2 GHz are supplied, and together with 128bit memory interface this creates a bandwidth of 64.0 GB/s.
Compatibility-wise, this is card attached via MXM-B (3.0) interface. Power consumption is at 50 Watt.
It provides poor gaming and benchmark performance at 8.65 percent of a leader's which is AMD Radeon R9 390 X2.