Question On HDMI 2.0 can i have 120Hz?

[HuNTeR-]

I am just curious about one dilemma.I own an MSi RTX 2080Ti Gaming card,and this card support only HDMi 2.0.I planning to buy LG TV C1 with refresh rate of 120Hz.This TV supprt HDMI 2.1 4k 120 HZ.If i purchase this TV, i will be limited only at 60Hz on 4k resolution ??
thanks

 

[Leeea]

4k 60 Hz is all your going to get. Not HDR.

HDMI 2.0a adds HDR @ 4k 30 hz
HDMI 2.0b adds HDR @ 4k 60 hz
HDMI 2.1 adds 4k 120 Hz + HDR + optionally VRR xor FRL

also with HDMI, no promises, dissappointment is always a possibility.

 

[fralexandr]

True 4k 120hz requires hdmi 2.1 48Gbps. Hdmi 2.0 is 18Gbps and limited to 4k 60hz.

You may be able to use 4k 120hz at 8bit and a reduced color of 4:2:0 which means no HDR, so it would impact image quality significantly.

 

[HuNTeR-]

but on 1920x1080 or 2560x1440 resolution , can i have 120 Hz with 4:4:4 full color on HDMI 2.0 ?

 

[Leeea]

True 4k 120hz requires hdmi 2.1 48Gbps. Hdmi 2.0 is 18Gbps and limited to 4k 60hz.

You may be able to use 4k 120hz at 8bit and a reduced color of 4:2:0 which means no HDR, so it would impact image quality significantly.

4k 60hz at 4:2:0 is 17.82 Gbps, he is already at 8bit.

 

[fralexandr]

but on 1920x1080 or 2560x1440 resolution , can i have 120 Hz with 4:4:4 full color on HDMI 2.0 ?

Yes... but then you lose the crispness of running at native resolution and are dependent on the scalers. This may effect things like text sharpness, which depends on how good your eyes are and how far you sit from the display.

4k 60hz at 4:2:0 is 17.82 Gbps, he is already at 8bit.

4K 60 at 4:2:0 was possible on hdmi 1.4...?

How Has Nvidia Managed to Push 60Hz 4K Over HDMI 1.4?

Nvidia has used an old trick to compress video images in order to get a 60 Hz 4K signal over the limited HDMI 1.4 interfaces on Kepler cards.

www.tomshardware.com

 

[HuNTeR-]

but if i buy this adapter and this cable can i have 4k 120hz with 4:4:4 color ?

Amazon.com

Amazon.com

 

[Leeea]

but on 1920x1080 or 2560x1440 resolution , can i have 120 Hz with 4:4:4 full color on HDMI 2.0 ?

I do not believe HDMI 2 supports HDR at all, so no.

What display port version* is your GPU using? If it is 1.4 the below might work for you:

Amazon.com

its a roll of the dice

*its 1.4a

 

[Leeea]

but if i buy this adapter and this cable can i have 4k 120hz with 4:4:4 color ?

Amazon.com

Amazon.com

Does your GPU have a USB-C port with Display port Alt Mode support version 1.4?

 

[HuNTeR-]

Does your GPU have a USB-C port with Display port Alt Mode support version 1.4?

my graphic card model is this

https://www.techpowerup.com/gpu-specs/msi-rtx-2080-ti-gaming-trio.b6235

Outputs 1x HDMI 2.0
3x DisplayPort 1.4a
1x USB Type-C