Question: does hdmi 1.4 support 144hz?
Answer: Yes, HDMI 1.4 can support up to 144Hz at 1920×1080. However, not all monitors with HDMI 1.4 necessarily do as well. ... Many monitors with HDMI 1.4 are also limited to 120Hz at 1080p. Moreover, all monitors with G-SYNC are limited to 60Hz over HDMI.