rtings.com is a TV review site that is superb for finding such details, they test for 4:4:4 chroma specifically along with input lag in each mode and one of the

rtings.com is a TV review site that is superb for finding such details, they test for 4:4:4 chroma specifically along with input lag in each mode and one of their sub-cores is "use as a PC monitor". A valuable resource.