i have a pavilion slimline s5212y with an Intel G33/G31 integrated graphics card which is not the best would a galaxy geforce 9600 GT low profile be much of an upgrade to it or is there another low profile card out there that is?
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Descrete graphics cards almost always beat IGP's so yes.
they are hard to find but if you can find them then yes its a great upgrade. there is a 9800gt low profile out there aswell but i dont think theres much difference between the 2. what power supply do you have?