After looking around for a couple of weeks, today I finally received a Sapphire Radeon RX 570 Nitro+ 8GB video card from an online retailer. I had a hard time getting one because of all the Ethereum miners plundering the online stores. Here in Germany they seem to be gobbling up most of the RX 560 and 570 cards. In the end I did manage to find a retailer who is limiting sales to 5 per customer. Got it for 165 Euros...good price. One retailer told me that miners from Poland and Russia are buying 20 to 30 cards at a time. The HD 7790, I have, is a good card, but I was having some problems playing Grim Dawn and Halo Wars 2 at higher settings. After six years it was time to upgrade. The Sapphire RX 570 is a really good and very quiet card.