Phoronix published a review on the Radeon RX Vega On Linux: High-Performance GPUs & Open-Source No Longer An Oxymoron

A quote from the article:

The Radeon RX Vega is shipping today and for Linux gamers this is a serious AMD offering for being able to handle modern Linux games. But it goes beyond that in the RX Vega launch easily being the most successful launch ever for a GPU backed by open-source drivers on launch day. I've been spending the past several days testing the Radeon RX Vega 56 and RX Vega 64. The RX Vega 56 is a very competent graphics card for $399 USD while those wanting to reach peak performance for Linux gaming on a open-source system can find the RX Vega 64 for $499 USD. The open-source support for Vega isn't without some initial setup hurdles and some growing pains along the way, but it's looking very good for launch-day and the best DRM+Mesa support we have ever seen at-launch for the premiere of a new discrete GPU architecture.

 Radeon RX Vega On Linux: High-Performance GPUs & Open-Source No Longer An Oxymoron @ Phoronix