I am doing a preparation comparison for when I compare the 55" S95D QDOLED against the 55" Hisense MiniLED U8N, I will be buying a 7900XTX that has 2 HDMI 2.1 ports just for this comparison then possibly returning it after. The issue is, if I am not able to have both televisions with Windows HDR On, even if I have a 2 HDMI 2.1 Port GPU then the comparison becomes almost useless, I always play games with Windows HDR on since Windows HDR on 90% of the time (depending on the game you are playing) always looks better with more intense brighter colors. It usually doesn't look as good when you are only using your computer browsing the net/doing other things, as for Movies and HDR Videos on youtube I wouldn't know exactly if Windows HDR looks better, I rarely watch movies and HDR 4k/8k/fake 12k videos on youtube but this isn't my main concern here.

Of course my main concern is gaming only, I will be buying the TV I think looks better in games with both tv's calibrated to my preferences. If the S95D looks worse to equal to only a minor improvement in most scenes (depending on the game and where I am in that game on the maps/locations) then I will be returning the S95D and buying the U8N to compare against my U8K. If the S95D looks moderately (25-30% better) in most scenes against the U8N then I will keep the S95D and sell my current U8K.

I am currently comparing my Samsung QN90B 55" against my Hisense U8K 55", the Hisense looks better due to a brighter more color accurate picture but sometimes scenes with deep blacks look better on the Samsung QN90B but not if I put HDMI Range to Limited on the Hisense then it looks around equal but that is annoying switching that between Full then putting it on Limited if you are in a darker scene. The QN90B doesn't seem to have a HDMI Dynamic Range option. I have been comparing pictures and 4k HDR videos on duplicate monitor mode. The issue is when it is on Duplicate monitor mode it doesn't let me use HDR for either TV, I am using a Display Port to HDMI 2.1 adapter since my White AsRock Taichi 7900XTX only has 1 HDMI 2.1 port.

I was wondering if anyone who has 2 a HDMI 2.1 port GPU is able to have Windows HDR On with both their display panels in duplicate mode so is anyone able to use HDR in duplicate mode? Preferably TV's that are in the 55-65" range.