Ordered a Sapphire Radeon RX 6800. Guess I'll have a used 3700x as a chaser, replacing the 1700. Should be enough for AAA games at 1080p and give me three-digit FPS.
Edit:
Look how I massacred my boy... had to take the rotary tool to the case to fit this beast inside. The proportion of the card and the mini ITX board is kinda funny. Used a whole can of cleaning spray to get the filth out. Then took the front panel off and cleaned it whole under the shower. Had to deep clean the bath tub, myself and hoover half of my place after that. How this box breathed is a mystery to me ^^. Got a 3700X off eBay for 120 €, that'll go in tonight.
So far I'm pleased. Before the upgrade I've been playing Fallen Order for 24 hrs on lowest details 720 p, still stuttery as heck. Had problems with a boss fight, one attack in particular messed up performance so bad I had no chance of reacting to it. After the upgrade I won first try. This card is impressively silent. All options maxed out in that game, I can't tell if the fans are spinning just from listening. I should have spent the money earlier and spare me the headaches.
Edit: Installed the 3700X. Borderlands 3 FPS went from 87 to 124.