lalegator Posted November 5, 2018 Share Posted November 5, 2018 (edited) i`v just upgraded my graphic card to 580 nitro+ card from gt560ti and i expected to see some improvements, but none came. still 4k is unplayable on mac mojave, on windows it flyes. now i have smbios MacPro5,1 and i while i had imac 14.1 smbios it was smoother. not perfect but watchable. but when i had imac smbios i could open jpeg files on preview and some programs where not working. any solution maybe? played with bios setting, igpu enable/disable...etc, whatevergreen. lillu and other kexts but to no avail. Edited November 5, 2018 by lalegator typo error Link to comment https://www.insanelymac.com/forum/topic/336347-rx-580-nitro-poor-4k-footage-play/ Share on other sites More sharing options...
luciuxx63 Posted February 27, 2019 Share Posted February 27, 2019 HELP!! I have a Sapphire nitro + 8GB Special edition ... I only see in 1024x760 and 3 (!!!) mega of VRAM. I follow this Post carefully, but I'm not practical about SSDT etc., someone can help me 'Ah, the Motherboard is like yours ... Link to comment https://www.insanelymac.com/forum/topic/336347-rx-580-nitro-poor-4k-footage-play/#findComment-2665463 Share on other sites More sharing options...
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