Does Freesync Work With Hdmi. It supports Freesync, but only over HDMI - which Nvidia cards do not support. AMD FreeSync™ technology is an AMD initiative that leverages industry standards such as DisplayPort™ Adaptive-Sync to deliver dynamic refresh rates to end users.
AMD GPUs can do adaptive sync through. This Subreddit is community run and does not represent NVIDIA in any capacity unless specified. For passive adapters, when it detects that the other side is a HDMI monitor, it simply transmits HDMI through the DP cable.
So does freesync work on a HDMI cable.
If I am not mistaken, Vendor Specific Extension is the technical term.
On HDMI side of things, FreeSync over HDMI is AMD's properietary solution. This Subreddit is community run and does not represent NVIDIA in any capacity unless specified. It supports Freesync, but only over HDMI - which Nvidia cards do not support.