4k is useless. 1080p 144hz, then 1440p 144hz, depending on budget.
if you are in austria, can you use a list w/ parts from germany, becuase those are really close
PCPartPicker part list / Price breakdown by merchant
Type
Item
Price
CPU
AMD - Ryzen 5 2600 3.4 GHz 6-Core Processor
€152.90 @ Mindfactory
Motherboard
Gigabyte - B450 AORUS PRO ATX AM4 Motherboard
€99.99 @ Amazon Deutschland
Memory
Corsair - Vengeance LPX 16 GB (2 x 8 GB) DDR4-3000 Memory
€111.99 @ Amazon Deutschland
Video Card
Gigabyte - GeForce RTX 2070 8 GB WINDFORCE Video Card
€516.71 @ Alza
Case
Phanteks - Eclipse P350X (Black) ATX Mid Tower Case
€69.90 @ Caseking
Power Supply
Cooler Master - MasterWatt 550 W 80+ Bronze Certified Semi-Modular ATX Power Supply
€59.97 @ Amazon Deutschland
Monitor
AOC - G2460PF 24.0" 1920x1080 144 Hz Monitor
€219.90 @ Caseking
Monitor
AOC - E2470SWHE 23.6" 1920x1080 60 Hz Monitor
€94.90 @ Amazon Deutschland
Monitor
AOC - E2470SWHE 23.6" 1920x1080 60 Hz Monitor
€94.90 @ Amazon Deutschland
Prices include shipping, taxes, rebates, and discounts
Total
€1421.16
Generated by PCPartPicker 2019-02-23 01:50 CET+0100
has a case (it has RGB & TG)
has a CPU (excellent for its price, comes with a decent stock cooler)
has a GPU (should get 120+ FPS at max settings 1080p, 200+ if you turn some of them down)
RAM (Nice looking, and 3000mhz)
3 monitors (2 1080p 60hz, for productivity, and a main freesync 144hz one for gaming)
PSU ( a good 80+ bronze unit ~85% efficenty @ 230-240V (you can get 90% for 20-30 more))
Cooling equipment (I think the case comes with 2 fans, the cpu has a good stock one, and the gpu's is perfectly adequate)