Chief Blur Buster wrote:There is currently a buffering behaviour in several early 240Hz monitors for less-than-240Hz modes. This is because most current 240Hz monitors only do bufferless scanout at their max Hz. Currently, at 60Hz and 120Hz, they automatically buffer the refresh cycles in order to scanout faster (1/240sec scanout of 60Hz refresh cycles or 120Hz refresh cycles).
I have not yet tested if this behaviour persists in FreeSync mode, but at the moment, the risk of latency is too high at the moment -- until we test this out more fully. That's why current 240Hz monitors have had so-so 60Hz input lag, but excellent 240Hz input lag.
Thanks for the info! I wish I would have read this before I purchased my Alienware FreeSync 240Hz monitor for my XB1 X! I knew at the time the console only supported 60Hz but FreeSync was out and I heard great things about the Alienware AW2518HF so I pulled the trigger.
Is there any way of knowing or finding out if my monitor has this buffer issue? (I use FreeSync and it appears to be active but I swear at times it acts a little buggy. If I had the tools I would love to test the input lag with and without FreeSync enabled and the new 120Hz support.) Unfortunately, with the XB1 X you can't activate both FreeSync and 120Hz. It's one or the other at this time.
Thanks for all your world class knowledge -