Hello i am here asking for advice if i should get the r9 290x or the 780ti both are manufacture refurbished from newegg the r9 290x is the msi twin frozer for 275.00 or the 780ti evga superclocked for 350.00 i want the best experience while gaming and livestreaming and using my cards the render videos. I can also go r9 290's in crossfire but i dont know if my 750 evga b2 power supply can handle them with my amd 6300 overclocked to 4.7 with the 212 evo. thanks for your answers