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Does HDMI 2.0b support 1440p @ 144Hz / 165Hz?

codefined
By codefined
in Displays
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I have a MSI GeForce GTX 1080TI, which has the following outputs:

  • DisplayPort x 2 (Version 1.4)
  • HDMI 2.0b x 2
  • DL-DVI-D

I'm intending to purchase 3x VG27AQ's from ASUS, which can run at upto 1440p at 165Hz.  Unfortunately, I only have two display ports.  So whilst those two monitors should be fine, I will need to use HDMI for the last one.  With HDMI 2.0, will I be able to run it at 144Hz / 165Hz or will I need to lower it down to 60Hz?

 

I can't seem to find much information on this online,  unfortunately.

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Posted
11 hours ago, codefined said:

I have a MSI GeForce GTX 1080TI, which has the following outputs:

  • DisplayPort x 2 (Version 1.4)
  • HDMI 2.0b x 2
  • DL-DVI-D

I'm intending to purchase 3x VG27AQ's from ASUS, which can run at upto 1440p at 165Hz.  Unfortunately, I only have two display ports.  So whilst those two monitors should be fine, I will need to use HDMI for the last one.  With HDMI 2.0, will I be able to run it at 144Hz / 165Hz or will I need to lower it down to 60Hz?

 

I can't seem to find much information on this online,  unfortunately.

It supports 4K at up to 120Hz, so it won't be a problem to run 1440p at 165Hz.

Have to correct myself. As @circeseye mentioned, it can only do 4K 60 or 1440p 144Hz!

 

 

 

 

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Posted

I would look at the monitor itself rather than what the standard can support because there are many cases where a monitor only supports high refreshrate over a certain port even if multiple of their ports are capable of driving the higher refreshrate. 

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5 minutes ago, Brooksie359 said:

I would look at the monitor itself rather than what the standard can support because there are many cases where a monitor only supports high refreshrate over a certain port even if multiple of their ports are capable of driving the higher refreshrate. 

How can I tell?  I can't see anything in the specification:

https://www.asus.com/Monitors/TUF-Gaming-VG27AQ/specifications/

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40 minutes ago, Senzelian said:

It supports 4K at up to 120Hz, so it won't be a problem to run 1440p at 165Hz.

hdmi 2.0 can not do 4k 120hz only hdmi 2.1 can. limited to 4k 60hz

hdmi 2.0 can do 1440p 144hz but not 165hz for 165hz you need dp

its hdmi 2.0 bandwidth limitation

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10 hours ago, circeseye said:

hdmi 2.0 can not do 4k 120hz only hdmi 2.1 can. limited to 4k 60hz

hdmi 2.0 can do 1440p 144hz but not 165hz for 165hz you need dp

its hdmi 2.0 bandwidth limitation

Thanks for correcting.
For some reason I've mistaken HDMI 2.0 with 2.1.

 

 

 

 

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23 hours ago, circeseye said:

hdmi 2.0 can not do 4k 120hz only hdmi 2.1 can. limited to 4k 60hz

hdmi 2.0 can do 1440p 144hz but not 165hz for 165hz you need dp

its hdmi 2.0 bandwidth limitation

 

Have to correct you on this. HDMI 2.0b CAN do 4k @ 120hz with 8-bit color and 4:2:0 chroma subsampling. Unfortunately, the options for this are heavily limited. As it stands I have a Samsung Q90R and a LG CX. Both can do 4k @ 120hz via HDMI on my RTX 2070 Super.

4k120.JPG

CPU: Ryzen 7 5800x3D || GPU: Gigabyte Windforce RTX 4090 || Memory: 32GB Corsair 3200mhz DDR4 || Motherboard: MSI B450 Tomahawk || SSD1: 500 GB Samsung 850 EVO M.2 (OS drive) || SSD2: 500 GB Samsung 860 EVO SATA (Cache Drive via PrimoCache) || Spinning Disks: 3 x 4TB Western Digital Blue HDD (RAID 0) || Monitor: LG CX 55" OLED TV || Sound: Schiit Stack (Modi 2/Magni 3) - Sennheiser HD 598, HiFiMan HE 400i || Keyboard: Logitech G915 TKL || Mouse: Logitech G502 Lightspeed || PSU: EVGA 1300-watt G+ PSU || Case: Fractal Design Pop XL Air
 

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22 minutes ago, MadPistol said:

 

Have to correct you on this. HDMI 2.0b CAN do 4k @ 120hz with 8-bit color and 4:2:0 chroma subsampling. Unfortunately, the options for this are heavily limited. As it stands I have a Samsung Q90R and a LG CX. Both can do 4k @ 120hz via HDMI on my RTX 2070 Super.

4k120.JPG

ok...but 8bit 420?  yea you turned settings even more down to get that. with those settings why even go 4k. but either way bandwidth issue..you had to turn settings down to get that

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1 hour ago, circeseye said:

ok...but 8bit 420?  yea you turned settings even more down to get that. with those settings why even go 4k. but either way bandwidth issue..you had to turn settings down to get that

 

This is true, but quoting you on this.

On 5/9/2020 at 5:54 PM, circeseye said:

hdmi 2.0 can not do 4k 120hz only hdmi 2.1 can. limited to 4k 60hz

hdmi 2.0 can do 1440p 144hz but not 165hz for 165hz you need dp

its hdmi 2.0 bandwidth limitation

 

I'm sorry, but you're wrong. It is possible with HDMI 2.0b. There is definitely a degradation in picture quality due to the decreased chroma subsampling, but nonetheless, 4k @ 120hz is possible on HDMI 2.0b.

CPU: Ryzen 7 5800x3D || GPU: Gigabyte Windforce RTX 4090 || Memory: 32GB Corsair 3200mhz DDR4 || Motherboard: MSI B450 Tomahawk || SSD1: 500 GB Samsung 850 EVO M.2 (OS drive) || SSD2: 500 GB Samsung 860 EVO SATA (Cache Drive via PrimoCache) || Spinning Disks: 3 x 4TB Western Digital Blue HDD (RAID 0) || Monitor: LG CX 55" OLED TV || Sound: Schiit Stack (Modi 2/Magni 3) - Sennheiser HD 598, HiFiMan HE 400i || Keyboard: Logitech G915 TKL || Mouse: Logitech G502 Lightspeed || PSU: EVGA 1300-watt G+ PSU || Case: Fractal Design Pop XL Air
 

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Just now, MadPistol said:

 

 

This is true, but quoting you on this.

 

I'm sorry, but you're wrong. It is possible with HDMI 2.0b. There is definitely a degradation in picture quality due to the decreased chroma subsampling, but nonetheless, 4k @ 120hz is possible on HDMI 2.0b.

moot....no one in their right mind would run that. and i repeat YOU TURNED THE SETTING DOWN TO CRAP TO GET IT. bandwidth issue your so called point is stupid

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10 minutes ago, circeseye said:

moot....no one in their right mind would run that. and i repeat YOU TURNED THE SETTING DOWN TO CRAP TO GET IT. bandwidth issue your so called point is stupid

We shall agree to disagree on this.

All good, my friend. No reason to get passionate over it. 🙂

CPU: Ryzen 7 5800x3D || GPU: Gigabyte Windforce RTX 4090 || Memory: 32GB Corsair 3200mhz DDR4 || Motherboard: MSI B450 Tomahawk || SSD1: 500 GB Samsung 850 EVO M.2 (OS drive) || SSD2: 500 GB Samsung 860 EVO SATA (Cache Drive via PrimoCache) || Spinning Disks: 3 x 4TB Western Digital Blue HDD (RAID 0) || Monitor: LG CX 55" OLED TV || Sound: Schiit Stack (Modi 2/Magni 3) - Sennheiser HD 598, HiFiMan HE 400i || Keyboard: Logitech G915 TKL || Mouse: Logitech G502 Lightspeed || PSU: EVGA 1300-watt G+ PSU || Case: Fractal Design Pop XL Air
 

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So, sorry, got a little lost along the way.  If I wanted to run with a standard colour depth and dynamic range from an HDMI 2.0 connection, would it be able to reach 120Hz / 144Hz?

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15 minutes ago, codefined said:

So, sorry, got a little lost along the way.  If I wanted to run with a standard colour depth and dynamic range from an HDMI 2.0 connection, would it be able to reach 120Hz / 144Hz?

For 1440p @ 120hz, yes. In fact, 1440p @ 120hz will do HDR (10-bit, 4:2:2) within spec as well.

CPU: Ryzen 7 5800x3D || GPU: Gigabyte Windforce RTX 4090 || Memory: 32GB Corsair 3200mhz DDR4 || Motherboard: MSI B450 Tomahawk || SSD1: 500 GB Samsung 850 EVO M.2 (OS drive) || SSD2: 500 GB Samsung 860 EVO SATA (Cache Drive via PrimoCache) || Spinning Disks: 3 x 4TB Western Digital Blue HDD (RAID 0) || Monitor: LG CX 55" OLED TV || Sound: Schiit Stack (Modi 2/Magni 3) - Sennheiser HD 598, HiFiMan HE 400i || Keyboard: Logitech G915 TKL || Mouse: Logitech G502 Lightspeed || PSU: EVGA 1300-watt G+ PSU || Case: Fractal Design Pop XL Air
 

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3 hours ago, codefined said:

So, sorry, got a little lost along the way.  If I wanted to run with a standard colour depth and dynamic range from an HDMI 2.0 connection, would it be able to reach 120Hz / 144Hz?

With standard 8 bpc RGB color, HDMI 2.0 supports up to 144 Hz at 2560 × 1440.

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  • 7 months later...
Posted
On 5/11/2020 at 1:52 PM, Glenwing said:

With standard 8 bpc RGB color, HDMI 2.0 supports up to 144 Hz at 2560 × 1440.

I know this is really old, but I just got a 1440p monitor and an rtx 3080 and I have an HDMI 2.0 and a display port 1.4 cable, which do I use or does it not matter? 

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