4K HDR is a very popular technical vocabulary, and its main advantages are most fully reflected in audio and video games.
CB Germany recently inspected the NVIDIA GTX 1080 graphics card and AMD RX Vega 64 in 4K HDR high-voltage gaming performance, the display used is ASUS PG27UQ (4K 144Hz), It is found that the GTX 1080 has a significant frame loss after turning on HDR, up to 12%.
Test games include Assassin's Creed: Origins, Battlefield 1 "Use Summon 14: World War II", Final Fantasy 15 "Fate 2", Mass Effect: Andromeda, Resident Evil 7, Star Wars: Frontline 2, etc. .
Be aware that NVIDIA emphasizes that switching HDR does not affect game performance, and it seems that this is not the case.
The reason for the current general analysis is that after HDR is turned on in 4K resolution, the N card will compress the output video according to YCbCr 4:2:2 instead of 4:4:4 of full RGB, that is, the brightness is not lost, but the chrominance , concentration loss, the actual resolution is 1920x2160.
I hope that NV can release optimized drivers as soon as possible. At the same time, the most thorough solution should be to wait for the HDMI2.1/DP1.5 display to come out.
