Every machine is different. I have used older Nvidia equipment a good bit in the past & I think you would be fine with the Nvidia drivers from the Mint repos or "Additional Drivers". I believe 260 to be the current there?
From experience I can say that you should pay careful attention of each error message you get. I found that each one I got had a specific solution.
I hope this is enough to point you in the right direction.
HP a6619f, 4GB ram, 500 GB HDD, Nvidia GeForce 930 GS
Mint 13 Cinnamon 64