Graphic cards compatible with hp pavillion a1720n

I wold make sure that the power supply is sufficient. Most likely it is a 300W generic power supply, which would most likely be only good enough for a Radeon 5670/6670 (not that that is a bad thing though.

I have one similar to yours, and I replaced the power supply and am running a Nvidia GTS250. The 5670 is probably the highest you could go without a power supply, the 250 is probably the highest before a bottleneck might occur.
 

Firion Hope

Honorable
Jun 3, 2013
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Hello I realize this is an old topic and I apologize if it shouldn't be bumped but I have this now ancient computer and was wondering if the cards mentioned are still the best upgrade for the price? Thank you in advance