I used https://www.google.com/search?q=mixed+dimension+amd+eyefinity and the discussions are there to read.
i have the AMD crimson drivers version 16.8.2, I've been scouring the net and i cant seem to find a way to do a mixed dimension eyefinity group( an eyefinity group with multiple resolutions)
specs
os:windows 10 prox64
cpu:fx6350, oc-ed to 4.2ghz
ram:24gb installed 20gb available.
storage: 1x250gb 2.5 850 evo(boot, os, apps)
1x120gb m2 850evo(steam)
1x500gb 3.5 sata 7200rpm
1x dvd +/- r/rw sata
mobo: asrock 990fx fatal1ty killer
psu: 1200w rosewill quark 80+ platinum
gpus: 2x asus strix r9-390 8GB
spu: creative sound-blaster z with logitech z506 speakers.
monitors
primary: acer s223hl (hdmi)
secondary: dell 170P FPV(dvi)
tertiary: sony kdl19m4000 (vga to vga/displayport adapter to card)
all connected to the primary card.

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