Hey, does your 7850 output video in pre-OS environment (during boot/in BIOS)? or it does not work period?
rx580 is overall faster, and memory mostly comes in useful when playing on larger resolutions using higher level texture details, which is where rx570 with 8GB might pull ahead. it's a close one, and it all depends on how soon you'd be looking to upgrade the gpu afterwards and how much you'd be able to get either of them for (overall i'd say rx570 8gb would provide more longevity than rx580 4gb). Hope this helps.
using hdmi (hdmi(gpu) to dvi(monitor); my monitor hdmi port is broken so i use the hdmi output and convert it to dvi) it does show the boot logo (asus logo and press f2 to enter bios)
i have also tried with the vga port (dvi(gpu) to vga(monitor) with the converter included with the gpu) and the same problem happens
i do not any dvi to dvi cable thus i could not test it
also i have a 1080p monitor at 60hz and i would not really be looking to upgrade right now
the cpu i definately want to upgrade, maybe the ryzen 2000/3000 series depending on the price
this the rx580 4gb at £150
https://www.overclockers.co.uk/asus...ddr5-pci-express-graphics-card-gx-41g-as.html
and the rx570 8gb is from a friend (brand new) for £135
I presume this is driver related so anyway. I received my new rig from Overclockers yesterday. Ryzen 7 2700 with a Sapphire Vega 56. I have had endless problems with my computer since receiving it. Within 5 minutes of trying a game (The Division 2) the machine shut itself down. The notification I got was 'Default Radeon WattMan settings have been restored due to an unexpected system failure'. I have had this exact message numerous times since. It can happen 10 minutes after starting a game or it can be 60 minutes later. It happens in different games as well. On two occasions it has also just hung with my monitor saying there is no signal. I also get the 'unexpected system failure' notification everytime the machine restarts. I do not specifically use WattMan and have neither overclocked or undervolted. I have now tried three different drivers and used DDU to try and completely uninstall everything Radeon related. Even after trying and reinstalling that I have had one further issue since this morning. I googled the Wattman notification and spent a few hours reading through many, many examples of this happening to a wide ranged of AMD cards on a multitude of forums. Any idea of what I can do?
now that i remember i do recall a few times that the 'Default Radeon WattMan settings have been restored' message came up (i did not overclock it apart from the stock overclock)
maybe i should have payed attentions to the card dying
would it be worth it waiting for the navi gpu?