Such an old monitor certainly can be handled by both cards. So I would use other factors to decide.
http://gpuboss.com/gpus/GeForce-GTX-950-vs-GeForce-GTX-750-Ti is a comparison.
Be sure your PSU is powerful enough to handle the one you choose.
Hi! Kind of new here.
Sooo I'm wondering which gpu should I choose the resolution of my monitor is 1360x768 (i know it's an old resolution) but I would like to game on it for 2-3 years before i finally replace my pc altogether so should I pick up the gtx950 or the gtx750 ti? thank you!