Advice on build

Hi guys, I'm looking to build a new pc with the intention to playing in 1440. This is the build. The parts on which I'm not sure are 1.1 3.1 5.1 Are they really worth like 250 € more?? I mean, in my experience with pc builds we always tend to underestimate the power.

Also, which monitor would you recommend for this build?

  1. MSI GeForce RTX 4060 Ti VENTUS 2X BLACK 8G OC: €409.99 1.1 either this or 4070 € 580

  2. MSI PRO B650-A WIFI Motherboard (ATX): €178.99

  3. Itek Case SHOWBUI 33W Gaming Tower (ATX): €49.00 3.1 either this or corsair 4000D airflow € 90

  4. MSI MAG A750GL PCIE5 Power Supply (750W, 80 PLUS Gold): €89.29

  5. AMD Ryzen 5 7600X Processor (6 Cores/12 Threads): €206.79

5.1 either this or Ryzen 7 7700 € 290

  1. Crucial Pro RAM DDR5 32GB Kit (2x16GB, 6000MHz): €87.99

  2. WD_BLACK SN770 2TB M.2 2280 Game Drive: €116.98

  3. ARCTIC Liquid Freezer III 240 A-RGB