AMD has made its first stop of a their quick Vega tour in Budapest. And yes, you'll be wondering as much as I am, why a low-key location like Budapest. I mean look at the number of attendees there?  They have been demoing Radeon RX Vega in covered PCs (the people could not visually see parts).

The Radeon RX Vega based PCs have been powered by a Ryzen 7 processor and for games you can see Battlefield 1 or Sniper elite 4 running. The monitors have been covered up as well, so it is not easy to see if AMD has been using FreeSync and for the Nvidia comparison Gsync. The Nvidia systems ran a GTX 1080, so at lease we know for sure that's what AMD is aiming Vega at. The monitor resolution is 3440 x 1440. AMD told attendees that the AMD and NVIDIA systems had a $300 difference in AMD's favor.
 

 The author of the video was rather focused at two things with two things in particular ;)

There are no accounts of frame-rate counters, or any other significant performance gauges besides human observation. In fact, that seems to have been the point of this exercise. AMD’s intent with this show appears to have been ‘you can’t tell the difference between Vega and a 1080 in a blind-ish test’. It sounds like there were visible differences, though. In this report on Reddit, the poster says three out of three observers felt one system was performing noticeably worse (an estimated mid-50s framerate according to some present). Check the photos there's nothing more or else to derive from this event. The RX Community meetup was not an event meant for the tech press, but for fans of the Radeon brand. 

The one thing interesting from the photos is to clearly see formed Hardware.fr editor Damien Triolet in the photos, he indeed now is part of AMD RTG staff.

Sources: Reddit User @ Szunyogg, Blog,  RX Vega Budapest Google Photos