You would be correct Sir!
The weakest link of a laptop is it's graphics 'engine'.
This solution will be rather lengthy. Advising in advance because I want you to understand, without being bored, or your eyes glassing over. Lol!
The Gateway NV53A57u Notebook PC, uses an ATI Radeon HD4250
To digress for a moment;
Chip and Chipset are slang terms for I.C.
The Integrated Circuit, or chipset, used for graphics, is a graphics chipset, or G.P.U.,
Graphics Processing Unit,http://en.wikipedia.org/wiki/GPU
A GPU is mounted to a small circuit board. The small circuit board is an interface, whereby the GPU can be mounted;
1) Directly to the motherboard.
2) To a graphics(Video) adapter card. Commonly referred to as a graphics (Video) card.
The GPU can also be part of the motherboard chipset.
Of which the ATI Radeon HD4250 is.
It is part of the AMD M880G motherboard chipset, which your Gateway NV53A57u Notebook uses.
Therefore no sir. You would have to change the motherboard chipset, and that ain't happenin'.
All is not lost, however. I offer the following for your perusal;
There is a 'kit' that you can use to use a Desktop graphics (Video) card.http://www.hwtools.net/Adapter/PE4H.html
You need a decent PCI-Express graphics/video card, and a desktop Power Supply,http://www.techradar.com/news/computing-components/graphics-cards/how-to-make-an-external-laptop-graphics-adaptor-915616
Take away from the mobility of a laptop? Yes.
Can't just take it to the park, and use it.
You could put everything in a small carrying box, with fan cooling, and plug it into power, when you arrive at where you are going, however.
Just a thought. An expert briefly posted the TechRadarComponents website for this graphics card adapter, on FixYa in the past, and I have been 'rolling' with it.
For additional questions please post in a Comment.