mk12321

Hey guys, I'm trying to find the best parts for a 4k gaming pc, the goal is to be able to play the newest games on atleast high settings, but games like The Witcher III on max settings at 4k. I'm not sure if this is realistic on a budget of 2000 to about 2500 euro's (country = Netherlands). Are there any specific parts that you guys suggest i take a look at? Also, the monitor is also part of the budget. I was thinking about getting the Acer Predator XB281HK. All help is appreciated.