Comment by rubatuga
2 days ago
Just checked my gaming PC - 5700xt + rx9060 and it's idling comfortably at 39W with a single 120hz 1080p display. Dual monitors will probably cause higher idling wattage.
2 days ago
Just checked my gaming PC - 5700xt + rx9060 and it's idling comfortably at 39W with a single 120hz 1080p display. Dual monitors will probably cause higher idling wattage.
It isn't the number of monitors that cause the problem, but the total bandwidth used.
Depending on the generation, either equivalent to 4k 60hz or 4k 120hz kicks them out of idle. For my card, an RDNA3, its 4k 60hz; RDNA4 is 4k 120hz.
So, I have 4 1080p monitors... if they're all at 60hz, it properly idles. If my primary one is at 120hz, it crosses that line and is now at lowest active clockrate, so total system wattage is ~75W instead of ~50W.
I almost considered having my 9800x3D's IGPU service the trio of 60hz monitors, but its like an extra 10-15W to enable the media engine and run enough shader to run WDDM... where my 9800x3D can reach (but not cross) 80c on particularly well optimized code under a NH-D15 G2 LBC, I don't really want to throw another 15W at that.