8750M

So, i wanted to play Dishonored and when i ran it ,it was very laggy.So i went to graphics settings and wanted to change my settings but after tryng to save the changes it said that it failed to save and then the game window froze,had to alt-tab to close the game and after that i realised that...

i3 3120m + 8750m ddr3 2gb OR i3 3227u + 730m ddr3 2gb In overall which one is better?