I want it for gaming on a laptop which I am about to buy. But now in a confusion what to look for I have a desktop at home which I use for gaming but now since I want a portable device don't know what to do. I am using gt660 right now at my desktop. But these two look the best which my money can buy right now.
I will go with GT650m , anyday.
Performance wise GT650m is better than 7730. HD Radeon 7730 is somewhere around GT640m LE . In fact a GT640m will perform better at most games than 7730.
Some say that 7730 is better at few tasks(professional) , but as far as gaming performance is concerned GT650 wins by a considerable margin of 10-15% at least in almost all of the major game titles.
Problem is that , GT650m laptops do not come under 50k Bracket. None of them.The closest you can get around 650m model would be GT645m , which is in reality a slightly overclocked model of GT645m. And 645m laptop comes under 50k , [there is just one , though .lenovo z500.]
Then which graphic card will perform well in the similar price bracket.
None.
GT650m rules that price Bracket and is good enough for gaming at high settings , but not for Ultra game setting mode.
Can easily play almost all latest games at High settings , 1366x768 with excellent details. [30fps or more].
Source : Stuck in same dilemma until month end.