atomicWAR :
Nah HDMI 1.3+ can do 1080P @144hz...not hdmi 1.2 though to be fair.
http://www.144hzmonitors.com/knowledge-base/144hz-1080p-which-cable-do-i-need/
There has been some confusion on this issue, but no, HDMI 1.3 doesn't support 120hz. It can support HD3D at 60hz (per eye) at 720p, but not 120hz. HDMI 2.0 is required and that has to be supported by both the GPU and display.