GeForce GT 320M Game Requirement Analysis
GeForce GT 320M is an entry-class level GFX of the 300M Series released by NVIDIA in 2010. The biggest hindrance it has is the fact that it only supports DirectX up to 10.1 so DirectX 11 games aren't supported.
While very demanding games like Metro 2033 are most probably unplayable even at the lowest settings, demanding games like Crysis might run with very reduced detail + resolution.
GeForce GT 320M does support DirectX 10.1 but since it doesn't deliver that much performance, games that use DirectX 10.1 might be mostly unplayable or only playable at the lowest settings, due to the performance level they require.