HatersKing

I am in the market for some new monitors, I will be buying 3 of whichever I choose and am currently stuck between these 2. I am an avid gamer who plays a large mass of games ranging from your average single player games like minecraft and tomb raider to more intense AAA titles such as COD and Battlefield. I feel as if 1440p 240hz is a good middle ground for me because I want better quality than 1080p but don't wanna suffer from the performance hit of running a 4k monitor. Any and all suggestions as well as opinions and facts on the two monitors I have listed above will be greatly appreciated. Thank you all in advance!

Hooked up a secondary PSU and the PC worked fine

I have always been against pre-builts as you can usually get much more value by building yourself 

Yes

Zotac 1070ti AMP Extreme is $380 on amazon on sale right now