Best build you can buy with a GTX 1080 and an i7. This build has an i7 4790k that is one of the best CPU's out for gaming right now. Also, if you want to dabble in video editing or streaming, then this CPU can also do that. The GTX 1080 is the best GPU on the market right now, capable of 1440p 60fps ultra on every game out right now. PCpartpicker:.