Hey Prega,

i'am 10 boxing too, but with GTX 970 , 16 Gig DDR3 and Win7. The GTX 970 can handle 10 Clients with no probs in 1920x1080. But my 16 Gig Ram are bottlenecking sometimes. Most times they run between 14-15 Gig, if you are on high populated Server, big battles or running Youtube, OBS , Fraps etc in background it will be maxed out.
Don't know how much better DDR4 and win 8.1 can handle this.