babu2797 :
...my laptop is Asus K53SD
...
so in order to run directx11 enabled games which would be a good graphic card ?? I need a low cost graphic card.
and one more can we change the graphic card for laptops??
Unfortunately, you are not able to upgrade the GPU on your laptop.
You
can run DX11 games with what you have; the 610M does have full support; it is just to slow to give you playable framerates.
If you would like to play more graphical intensive games at higher settings and resolution, you will really need to upgrade.
A top end gaming laptop should be able to handle most current games, but you would probably be better suited with a much lower priced gaming desktop.
If this is of interest to you, please let us know and we can help you find what would work best for you.