I had a graphics card mishap (it's overheating and seems fucked and I can't pull it apart to check it out due to fucking loctite on the tiny screws), so I've had to downclock it and turn everything down to med/high until the new card gets here on Monday.
It still looks pretty great, so those of you with lower tier hardware might still consider giving this one a shot. Right now, for stability, my card is maxing out at 1375mhz with a Ryzen 3600X processor and 16gb of slow DDR4, and it's still hitting 30-35fps on med-high 1080p, which is fine for a flight sim. The graphics aren't something you'd rub one out over or whatever, but they're still pretty damn good. E: I do have Google Fiber which gives a good connection speed and can make a difference, so bear that in mind too.
1375mhz (with 8gb of vram) puts it in the old RX 570 range for clock speed, I think, just for comparison purposes. There are, of course, some other things about it that are better, but we're not exactly talking about peak Vega 64 performance here.
E2: By "overheating" I mean I have to keep it below about 62-63 degrees in the Radeon software or it blackscreens and needs a reboot. https://linustechtips.com/main/topic/898055-black-screen-gpu-fans-at-full-speed-crash-fixed/ Basically any stress on it and it starts risking a crash. I also set it to 1000mV to keep that low too, but these seem to respond favorably to that anyway, and adjusted the fans to start ramping up at 50 and to all out by 60.