It should have enough performance to run 720p with the GTX 750 ti. I would not invest in a more substantial video card however due to the bottlenecking issues.
I am actually running at 768p. What if I wait for 2017 and then get an AMD Zen APU. It is rumoured to come with 2GB HBM memory. DX12 allows Crossfire/SLI with Nvidia GPU and AMD GPU. What should I do? Save money or buy now?
If your limiting yourself to a mid-tier GPU like a 750Ti, you may as well hold out for a total system rebuild. Honestly not sure which component would bottleneck first.