You can do 1440p@120 with VRR with HDMI 2.0. HDMI 2.1 mainly comes into play for 4K@120hz with VRR support. 3 years from now we won’t be talking about games dipping below 60fps. We will be talking about games dipping below 120fps. Which in all honesty will be a lot less noticeable than when a game dips below 60fps. DisplayPort 2.0 was launched in 2019. DP 2.0 has added quite the substantial amount of features to this new standard. With DisplayPort 2.0 supporting 8K @ 60 Hz monitor resolutions. 10K @ 60Hz & 16K @ 60 Hz monitor resolutions is also supported for the true bleeding edge enthusiasts The effective bandwidth was juiced up to 77.4 Gbps and also HDMI 2.1 supports more data and supports 144hz with no compression, while DP 1.4 uses lossless DSC. If you really want core sync to control rgb then get a $15 HDMI 2.1 cable. If you are curious to learn more about the specifications, look at their wikipedia pages. To get HDMI 120Hz at native 1440p, the best connector is HDMI 2.0. It has double the bandwidth of HDMI 1.4, supporting both 1440p at up to 144Hz and 4K at up to 60Hz without any form of compression. You'll find HDMI 2.0 120Hz support on most modern graphics cards for desktop PCs, and the Xbox Series X and S games consoles, making it a widely Table 2: Cable types suitable for UHBR10, UHBR13.5, and UHBR20 . Cable support for DisplayPort™ 2.1 . With its high bandwidth transmission rate, DP 2.1 has some limitations in terms of cable support. There are two cables type that can support DP 2.1 bandwidth, DP40 cable can support up to UHBR10, and DP80 cable can support up to UHBR13.5 and Backward compatible with previous versions, the DisplayPort 2.1 update provides greater robustness and enhancements to full-size and Mini DisplayPort cable configurations that enable improved Dec 6, 2022. #3. The best thing to look for on the cable details is speed, not version. For hdmi 2.1 features to work you need a 48gbps capable cable, which is labelled ultra high speed, then there is 18gbps (labelled premium high speed) which is suitable for hdmi 2.0 features. So firstly look for speed rating then also look for hdmi HDMI 2.0 and 2.1 offer significant improvements over earlier versions in terms of bandwidth and features, but also come with some compatibility and cost considerations. Make sure to check the specifications and compatibility of your devices and cables before buying, and consider investing in HDMI 2.1 for future-proofing your setup. Most HDMI cables sold currently are either HDMI 2.0 or 2.1, even though older HDMI 1.4 cables are OK to use for older displays. If your display is newer, you should stick with a higher version of cable (HDMI 2.1). HDMI 2.1 is an upgrade from the HDMI 2.0 standard and has many significant upgrades compared to HDMI 2.0. Thankfully unlike the mess that the HDMI forum created with HDMI 2.1 where everything could end up being certified as “HDMI 2.1”, VESA will still be certifying devices under the older DisplayPort 1.4, and even DP 1.2, schemes where applicable or required. Not everything is going to be certified as DP 2.1, which would have left consumers to p5k4Y.