GeForce G 103M is an entry-class level GPU of the 100M Series released by NVIDIA, in 2009.
Since it only supports DirectX up to 10, games that use DirectX 11 are not supported and unplayable.
It uses the architecture 'G98', which is the same of the GeForce 9300M GS but comes with higher clock frequencies and it's manufactured at 55nm instead of 65nm, so the performance is a little better and even though it supports DirectX 10, even most forgiving games that use it, will only be playable at low settings.
Very demanding games like Metro 2033 or The Witcher 2 are certainly unplayable, even at the lowest settings and even demanding games like Crysis 2 and Skyrim V might be unplayable at low settings. Even less demanding, modern, games, like Sims 3, require reduced settings to run smoothly.