Can HDMI give me 120fps on a 120hz monitor

Mikey Albero

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Dec 27, 2014
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Provided my hardware can ABSOLUTELY push 120 fps, will I get 120hz out of my monitor, or will I be stuck at 60 because I'm using hdmi?
 
Solution


This is a common misunderstanding, but HDMI 1.4b does not support 120hz. It supports 1080p@60hz in 3D, which is sometimes referred to as 120hz in 3D. But in 2D, it cannot. They do this by sending two 1080p images in a single packet, at a rate of 60hz, and splits those two images into two frames on the monitor side. This...


This is a common misunderstanding, but HDMI 1.4b does not support 120hz. It supports 1080p@60hz in 3D, which is sometimes referred to as 120hz in 3D. But in 2D, it cannot. They do this by sending two 1080p images in a single packet, at a rate of 60hz, and splits those two images into two frames on the monitor side. This doesn't work for 2D.

HDMI 1.4b was released on October 11, 2011.[142] One of the new features is that it adds the ability to carry 3D 1080p video at 120 Hz – allowing frame packing 3D format at 1080p60 per Eye (120 Hz total).[143] All future versions of the HDMI specification will be made by the HDMI Forum that was created on October 25, 2011.[37][144]

You'll need HDMI 2.0 for it, and that means support on the GPU and monitor. I believe the only GPU's that support this atm, are the GTX 970 and 980.
 
Solution


Thanks for the clarification.