graphics card error

I got a 5700 for Black Friday, and it didn't work properly. It would freak out at loading screens, crash consistently, etc. So I sent it back assuming that it was the card. However, for Christmas I got the same card, 5700, but by a different manufacturer, and the same exact thing happened to me...

Hello. I have built a i7 4790k Build and a i5 6600k build. Can someone tell me which one will perform better for gaming, livestreaming, video editing and game recording? My Budget is around $1500 CAD. Thanks. i7 4790k Build: PCPartPicker part list: http://ca.pcpartpicker.com/p/wVLjzy CPU...