If the performance isn't good enough on the 580 then maybe look at the MM for a 1070, if you don't need Freesync then you can get a good deal on either a 980ti/1070/1080 all of which will be cheaper than a new Vega 56. I'm gonna hold out and see what AMD brings in the future, need adaptive sync back and I'll get that by either selling my current monitor and getting G-Sync or if AMD can be competitive again get Freesync.Hm. Ok. Worthy of serious consideration then. Although, the value of my RX580 has dropped off at the same rate.. whereas I could've got £300 for it a month or so ago.