Unfortunately I don't have an RX VEGA in-house to test with, at least not at the moment. so could Radeon' (ah if only it was that simple., make my life a damn sight easier) Rather, it seems like they benchmarked it on the GTX 1060 and simply assumed 'Well, if that can run it. In any case, the Engine (at least in 7.5) doesn't even feel like they've considered Radeon Graphics, let alone actually bothered to test it on such. (likely drafted in Sketch Up using Lumia for 'Fine Tuning' and 'Vista Rendering') … I don't know, it wasn't exactly 'encouraging' especially as I can see it running like a dog even on a High-Performance Laptop. I don't know if 8.0, 8.5 or 9.0 (as those are not the Trials they provided) improve this at all., but honestly given the Sales Pitch Video they had for 9.0 was essentially for showcasing Concepts to Customers in 'Real-Time' for Home Renovation / Building / etc. in essence the RX 480 wasn't Rendering various approaches, Anti-Aliasing was entirely disabled on everything, Z-Depth Fighting was occurring on Alpha Textures as well as the Shadow Mapping (causing a nasty Chequer Board patterning, and again no Aliasing was being done). On top of this the GTX 1060 was rendering the Scenes Correctly.

I mean I wouldn't recommend 50% Resolution / Lowest., but still it was possible. In fact at the Lowest Settings 60 FPS was Possible. where-as the GTX 1060 was seeing quite a noticeable uplift through performance options being switch on/off. Lowering the settings on the RX 480, and basically they didn't make much of a difference., perhaps 10% at most improvement in performance. Yet, this actually isn't the only difference that I was seeing. Now something interesting is the RX 480 was seeing 21 - 36FPS on each Sample Scene., where-as the GTX 1060 was hitting 40 - 48 FPS.

Ran each of the Sample Projects (on High Foliage, Super High Graphics, High Terrain). Alright, so grabbed a copy of the 7.5 Trial.

Lumion 8 pro texture