which of these PC builds for fortnite and other shooter games

@liam44jt: Moved to Hardware forum

For gaming there isn't much difference going with i5 8400 or the ryzen 5 2600

2% better performance in gaming on the i5 while 15% better speeds for editing etc on the ryzen 5 (if you intend to do so)

For pure gaming I'll take Intel anyday.

Both these builds will most likely be faster than even the next gen consoles that aren't even out yet.

Fortnite and CSGO could run on a $300 office computer with a low powered GPU. I'm not saying don't get either of those two builds you listed but your definitely gonna wanna play other games as well since neither of those two games will even begin to stress it.