GeForce GTS 160M is the most powerful GPU of the 100M Series released by NVIDIA in 2009.
The biggest hindrance it has is the fact that it only supports DirectX up to 10 so DirectX 11 games aren't supported.
It's based on the 'G94b' architecture (same as GTS 150M) and also same as GeForce 9800M GTS, but with the same specs, so technically a renamed GeForce 9800M GTS but produced at 55nm, instead of 65nm.
Compared to the most powerful Mobile GPUS (e.g. GTX 485M, Radeon HD 6990M), GeForce GTS 160M is far behind but it's still capable of playing demanding games (like Crysis) at medium or high settings.