4 Replies Latest reply on Jun 5, 2016 1:49 PM by teabagxpress

    Does R9 390 support 4K at 60HZ?

    vodoka

      I recently built a new computer with R9 390 graphics card, and Dell P2715Q as monitor. As it doesn't support 60HZ through HDMI, I'm using DP cable.

      There are problems. Only way I can get the monitor to display anything on my computer is to set the MST to secondary, and that caps the HZ to 30. Setting it off results in only black screen being shown, though if Display Settings are viewed through second monitor, that shows it being on 60HZ mode at the time. The monitor itself does support 60HZ and cable is fine, as I did test it with another computer that uses Nvidia GeForce GTX 745, and image came through with no problems. My drivers are up to date as well.

      What is the problem? I find it hard to believe that R9 390 being much newer card wouldn't be able to do same as weaker, older card.

        • Re: Does R9 390 support 4K at 60HZ?
          teabagxpress

          It sure seemed like Rocket league was doing 4k when my FRAPS and MSI was telling me 60FPS. However I cant confirm it was 4k 60FPS being put out by my TV by any means of testing I know and My computer heated up like crazy like it was putting in overtime.

           

          HOWEVER. The settings do not support it because "HDMI1 cant do 4k 60FPS" and the card has a HDMI1 connector. I think its partly just software limited. If even the worst HDMI connectors and cables can do a certain spec; then im fairly sure the connector types power can be pushed.  I used to push VGA cables to run specs "they cant run". Maybe HDMI is different as in the same laws dont apply to its signal?

           

          I bought an adaptor for DP (displayport PC) to HDMI2(TV) from club 3d but it doesn't work cause my monitor has its own weird stuff I assume.

           

          AMD could probably make it so you just put more information out your HDMI1 port by updating the software to allow it. If they use quality parts im sure it could do a slight boost even. 45FPS better than 30.

          • Re: Does R9 390 support 4K at 60HZ?
            cken23

            the r9 390 does support 4k but u have to use a display port 1.2 to hdmi 2.0 CERTIFIED and u can get taht from Club 3d on amazon. I use that and it works but the problem is that these crappy amd drivers ruining the game experience in 4k at 60hz. The screen starts flickering and then it loses signal while gaming, so the support for 4k is pretty much broken for AMD. Im so upset that i have these 2 r9 390s, it sucks to have spent that much and to know that these drivers suck balls. Nvidia came out with their 1080 and sellings these 2 r9 390s can get me a single 1080 with way better power than a crossfire polaris. This has been going on for a long time since crimson came out, so its not news.

              • Re: Does R9 390 support 4K at 60HZ?
                teabagxpress

                The fact my dual core 390 which costs more than a 1080 cant do 4k 60hz over HDMI is pathetic and "not known" cause there are limited quantites of my card. In fact a $800 card released in mid 2015 it shouldve been a given it had HDMI that can do 4k 60hz and I bought it without even questioning. Of course AMD wont label anything HDMI1 because theyll lose profits on such things so they use the vague HDMI term.

                  • Re: Does R9 390 support 4K at 60HZ?
                    teabagxpress

                    Also this driver and software non-support has been the defining factor of AMD forever. This is why we save $25 per item vs buying something with the intel name on it. My intel friend used to tell me this back in the day but I felt my PC ran 95% fine and I couldnt afford Intel. With my pure intel PC, I havent notice a single problem outside of some crappy wake from sleep with seems is windows trying to wake and track and datamine my information.  Sucks cause i could put my old 7970 OC GT boost in that to replace my single gtx 460   but then it would probably start crashing every so many hours like all my AMD PCs have the last decade.