to be honest with you none of them are gaming graphics, there more for being able to play HD videos smoothly, if you want to be able to play games then i would suggest going for an ATI 4*** or 5*** series card, most mid range laptops will have a 4*** series card which is great for playing games at a medium setting, but if its a home pc then go for a 5*** series card to really max out your gaming, intel unfortunately just dont make gaming graphics cards.
Nvidia's cards are alright too, but ive never liked intel/nvidia settups, i prefere a good solid AMD system