NVIDIA GeForce GTX 660 Ti Gaming Performance Unveiled - Reaches HD 7950 level Performance for $299
GTX 660M Red Dead Redemption 2 benchmark with Intel Core i7-2700K @ 3.50GHz at Ultra Quality ? 1080p, 1440p, Ultrawide, 4K Performance Benchmarks - GPUCheck United States / USA
Far Cry 3 News - Benchmarks: Far Cry 3 VS GeForce GT 540M
Total War: Rome II Benchmarked - NotebookCheck.net Reviews
GTX 660M Benchmarks (G55VW Vs G53SX) | Gaming Laptop Report
Nvidia GT 650M on rMBP actually better than Nvidia GTX 660M! | Page 2 | MacRumors Forums