That is a laptop and so it's not upgradeable generally with a graphics card. With that said I have found the same motherboard with different components on it.
You have 2 options open to you here. One is to buy the motherboard with the graphics card on and change it for your current one.
These one have the graphics card on it:
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and
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This one shows a board that don't have the graphics card on it
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You can see that it's emptied on the bottom half of the board where the red box is.
If you go this route and buy the motherboard and change it out with your current one, you'll need to make sure it has the heatsink that will go over the new graphics card chip.
Option 2 is to buy laptop that has a Nvidia GTX7xx (don't go lower than a GTX760) in it.
Get whatever that is in your budget.
*My advice is based on the laptop model that you linked to. You have to make sure the motherboard is the same shape as your current one. I am not responsible for anything here.