NVIDIA GeForce GTX 680M: specs and benchmarks
NVIDIA started GeForce GTX 680M sales 4 June 2012 at a recommended price of 310.50 USD. This is Kepler architecture notebook card based on 28 nm manufacturing process and primarily aimed at gamers. 4 GB of GDDR5 memory clocked at 1.8 GHz are supplied, and together with 256 Bit memory interface this creates a bandwidth of 115.2 GB/s.
Compatibility-wise, this is card attached via MXM-B (3.0) interface. No additional power connector is required, and power consumption is at 100 Watt.
It provides poor gaming and benchmark performance at 15.98 percent of a leader's which is AMD Radeon R9 390 X2.