Hello all! im going to buy a new graphic card, my budget is 200$-250$, my first choice is AMD R9 270X, considering the price point and performance i get, but my friend tell me i should go with GTX 760 which 50$ more expensive, if i get Nvidia i can use PhysX, but is That the big deal?? help me decide which card i must buy, AMD with similiar performance for 50$ cheaper or Nvidia with PhysX for 50$ more expensive??
If you want to use NVIDIA tech such as GPU recordings(A tech that records gameplay but does not hinder FPS performance) or their new G-sync, which is basically what they claim to have solve monitor refresh rate thus would not cause tearing.
PhysX is a marketing gimmick which would not really change your gameplay experience unless you like to see more random particles thrown in.
With AMD, there is this new tech which is MANTLE. What they claim is a low-level API which could utilize their GCN architecture better than OpenGL and DirectX. Which translate to better in game performances where game such as BF4 are supported.
So according to your needs, recordings and screen tearing or better in game performances. Personally, those 2 cards performances are mirror images of each other. Just which technology each offers appeals to you more.