LocutusH Yeah, but what else will utilize HDMI 2.1, if not the PC video cards? What else could do 120Hz in 4K with VRR, and why...

So the decision at RTG for the new Navis not to have HDMI 2.1 is not really understandable. Or they have rushed the announcement too much. Either way, it wasnt the right decision.

It sounds like you're oversimplifying this a bit - it's not a "decision" in terms of "do we include this feature, y/n?". The HDMI 2.1 spec was released in November 2017, which is very likely too short a time to get working hardware implemented into Navi (A hard launch in July for Navi means mass production started in May at the latest, meaning the silicon design was likely near finalized early in the new year. That leaves barely a year to integrate a brand-new I/O standard.). The required hardware to implement HDMI 2.1 output on a PC GPU doesn't exist yet, and the HDMI standard likely only gives requirements on the required functionality of said hardware, not how to implement it in an IC. In other words, companies either need time to develop this hardware, or assistance from organizations with this already in place. When the HDMI Forum prioritizes assisting the AV industry (as that's their main focus and their main contributors/partners), PC hardware manufacturers are left to themselves - leading to longer development cycles and slower adoption in this industry. The only other option would be for AMD and Nvidia to allocate significant hardware engineering resources to fast-track a HDMI 2.1 implementation, which would have direct detrimental effects on the parts of their hardware that actually matter in terms of performance, or result in delayed launches anyhow. In short: this would be a meaningless and silly thing to prioritize, and the only real solution would be for the HDMI Forum to more actively support PC hardware development. Until that happens, we have DP - which is arguably a better standard anyhow.As for what will utilize HDMI 2.1 in the eyes of the HDMI Forum: 8k TV broadcasts, specifically from the upcoming olympics. Remember, TV/AV is abigger industry than PC hardware. How many TVs are sold globally in a year? I'd be surprised if gaming PCs capable of driving high refresh rates even at 1080p amounted to 1% of that. TV sports, on the other hand, sells TVs like crazy.