PC Graphics

[fors1de]

I have such a problem, 2 video cards ASUS rx470 4GB mining edition. In GTA V in CF mode, the average fps 55-65 and if you turn off the CF and only one card works then fps 110 average. The same thing in the tomb rider fps in CF mode is much lower than on one cards. the only game where CF mode does not lower fps and even gives an increase of 17% is in far cry 5. Also in watch dog 2 fps in CF mode is 25% lower than on one cards. Drivers 18.12.2 stand, tried 18.12.3 the same, reset settings in adrenalin.

ps. windows 10 i7 4790 16 gb ddr3 ssd samsung

[pokester]

This is why most find Crossfire isn't worth it. It is hit and miss what games are optimized for it. The technology is literally discontinued after DX11. DX12 uses Multi GPU and that is on the game developer to support not the video card maker.  You can ask AMD for help, whether or not they can do anything I don't know, but these are user to user forums, not AMD. Another user that uses crossfire in those games may come along and offer assistance. To ask AMD use this link.:

Online Service Request | AMD