PG27AQDP - can it do 1440p/360hz/8-bit over HDMI 2.1 with DSC off?

[DFL91]

I'm seeing conflicting things because the Rtings review of the monitor and their Monitor Results Table shows that this monitor can use 360hz with DSC off if you use HDMI 2.1, but I've read owners of this monitor say it's still only 240hz with DSC off.

Also the theoretical bandwidth limit of 1440p/360hz/8-bit is within the limit of HDMI 2.1 so technically it should be able to, but I'm not sure if this monitor can or can't do it with DSC off.

I'm considering buying this monitor, but I'd like to know for sure what it's actual refresh rate limit is with DSC off over HDMI 2.1.

[t2na]

Appreciate this is an insanely late reply but was looking around online for something similar. From what I've been able to use/test provided you can disable DSC then yep, 'real' HDMI 2.1 supports 360hz 1440p at 8 bit. The issue is whether it's a real HDMI 2.1 port and not one of the limited bandwidth ones.

I have an Asus XG27AQDPG (500hz 1440p) - and when I disable DSC in the OSD and use HDMI 2.1 I can create a custom res at 360hz 8 bit.

[keke_keke]

Hi, sorry for the revive too, but any of u guys have tried 420hz at 10bit on HDMI? I wanna get the Asus 480 but I don't wanna use DSC, I calculated with a website and it's like 44gbps for 420hz at 1440p 10 bit, can use guys try it?

[ekajjj]

Appreciate this is an insanely late reply but was looking around online for something similar. From what I've been able to use/test provided you can disable DSC then yep, 'real' HDMI 2.1 supports 360hz 1440p at 8 bit. The issue is whether it's a real HDMI 2.1 port and not one of the limited bandwidth ones.

I have an Asus XG27AQDPG (500hz 1440p) - and when I disable DSC in the OSD and use HDMI 2.1 I can create a custom res at 360hz 8 bit.

Late post, but I'm trying to do the same - can you tell me the proper way to do it? I'm using CRU and can't seem to get 360hz to show as a value I can even choose for anything despite adding the info. Maybe doing something wrong, appreicate the help

[t2na]

Appreciate this is an insanely late reply but was looking around online for something similar. From what I've been able to use/test provided you can disable DSC then yep, 'real' HDMI 2.1 supports 360hz 1440p at 8 bit. The issue is whether it's a real HDMI 2.1 port and not one of the limited bandwidth ones.

I have an Asus XG27AQDPG (500hz 1440p) - and when I disable DSC in the OSD and use HDMI 2.1 I can create a custom res at 360hz 8 bit.

Late post, but I'm trying to do the same - can you tell me the proper way to do it? I'm using CRU and can't seem to get 360hz to show as a value I can even choose for anything despite adding the info. Maybe doing something wrong, appreicate the help

CRU gave me all sorts of headaches so I ended up doing it in Nvidia Control Panel, created a custom resolution/refresh rate there and tested it out and it worked nicely.

[ekajjj]

Appreciate this is an insanely late reply but was looking around online for something similar. From what I've been able to use/test provided you can disable DSC then yep, 'real' HDMI 2.1 supports 360hz 1440p at 8 bit. The issue is whether it's a real HDMI 2.1 port and not one of the limited bandwidth ones.

I have an Asus XG27AQDPG (500hz 1440p) - and when I disable DSC in the OSD and use HDMI 2.1 I can create a custom res at 360hz 8 bit.

Late post, but I'm trying to do the same - can you tell me the proper way to do it? I'm using CRU and can't seem to get 360hz to show as a value I can even choose for anything despite adding the info. Maybe doing something wrong, appreicate the help

CRU gave me all sorts of headaches so I ended up doing it in Nvidia Control Panel, created a custom resolution/refresh rate there and tested it out and it worked nicely.

You were able to get yours to hit 360hz? Hmm. I may be doing something incorrectly then, think I can can only get it at 300 or so. Any suggestions or guidance?

[t2na]

Appreciate this is an insanely late reply but was looking around online for something similar. From what I've been able to use/test provided you can disable DSC then yep, 'real' HDMI 2.1 supports 360hz 1440p at 8 bit. The issue is whether it's a real HDMI 2.1 port and not one of the limited bandwidth ones.

I have an Asus XG27AQDPG (500hz 1440p) - and when I disable DSC in the OSD and use HDMI 2.1 I can create a custom res at 360hz 8 bit.

Late post, but I'm trying to do the same - can you tell me the proper way to do it? I'm using CRU and can't seem to get 360hz to show as a value I can even choose for anything despite adding the info. Maybe doing something wrong, appreicate the help

CRU gave me all sorts of headaches so I ended up doing it in Nvidia Control Panel, created a custom resolution/refresh rate there and tested it out and it worked nicely.

You were able to get yours to hit 360hz? Hmm. I may be doing something incorrectly then, think I can can only get it at 300 or so. Any suggestions or guidance?

I put my monitor into 60hz first - then disabled DSC in the monitors OSD and made sure it was all using HDMI 2.1.

Then, went into Nvidia Control Panel (or NV App now!) and created a custom resolution, kept the resolution the same and just gradually bumped the refresh rate up. At 8 bit I could hit 360hz, at 10 bit the maximum I could hit was 320hz, although it gave me occasional issues so I found 300hz to be 'safer' for 10 bit.

8 bit at 360hz was no issue at all.

[ekajjj]

Late post, but I'm trying to do the same - can you tell me the proper way to do it? I'm using CRU and can't seem to get 360hz to show as a value I can even choose for anything despite adding the info. Maybe doing something wrong, appreicate the help

CRU gave me all sorts of headaches so I ended up doing it in Nvidia Control Panel, created a custom resolution/refresh rate there and tested it out and it worked nicely.

You were able to get yours to hit 360hz? Hmm. I may be doing something incorrectly then, think I can can only get it at 300 or so. Any suggestions or guidance?

I put my monitor into 60hz first - then disabled DSC in the monitors OSD and made sure it was all using HDMI 2.1.

Then, went into Nvidia Control Panel (or NV App now!) and created a custom resolution, kept the resolution the same and just gradually bumped the refresh rate up. At 8 bit I could hit 360hz, at 10 bit the maximum I could hit was 320hz, although it gave me occasional issues so I found 300hz to be 'safer' for 10 bit.

8 bit at 360hz was no issue at all.

Hmm, what timing mode did you select? Having trouble getting anything past 300hz. But not sure if it is defaulting to 10-bit despite me having 8 bit on, not sure.

[t2na]

CRU gave me all sorts of headaches so I ended up doing it in Nvidia Control Panel, created a custom resolution/refresh rate there and tested it out and it worked nicely.

You were able to get yours to hit 360hz? Hmm. I may be doing something incorrectly then, think I can can only get it at 300 or so. Any suggestions or guidance?

I put my monitor into 60hz first - then disabled DSC in the monitors OSD and made sure it was all using HDMI 2.1.

Then, went into Nvidia Control Panel (or NV App now!) and created a custom resolution, kept the resolution the same and just gradually bumped the refresh rate up. At 8 bit I could hit 360hz, at 10 bit the maximum I could hit was 320hz, although it gave me occasional issues so I found 300hz to be 'safer' for 10 bit.

8 bit at 360hz was no issue at all.

Hmm, what timing mode did you select? Having trouble getting anything past 300hz. But not sure if it is defaulting to 10-bit despite me having 8 bit on, not sure.

Just 'automatic' on the timing selection, what GPU do you have? I wonder if there's anything amiss with available display heads.

I'm on a 5070Ti - just checked again this morning to make sure I wasn't losing my marbles and I can definitely get 360hz at 8 bit with DSC switched off in the monitor OSD - and then 320hz at 10 bit also works when I press 'Test'.

[ekajjj]

You were able to get yours to hit 360hz? Hmm. I may be doing something incorrectly then, think I can can only get it at 300 or so. Any suggestions or guidance?

I put my monitor into 60hz first - then disabled DSC in the monitors OSD and made sure it was all using HDMI 2.1.

Then, went into Nvidia Control Panel (or NV App now!) and created a custom resolution, kept the resolution the same and just gradually bumped the refresh rate up. At 8 bit I could hit 360hz, at 10 bit the maximum I could hit was 320hz, although it gave me occasional issues so I found 300hz to be 'safer' for 10 bit.

8 bit at 360hz was no issue at all.

Hmm, what timing mode did you select? Having trouble getting anything past 300hz. But not sure if it is defaulting to 10-bit despite me having 8 bit on, not sure.

Just 'automatic' on the timing selection, what GPU do you have? I wonder if there's anything amiss with available display heads.

I'm on a 5070Ti - just checked again this morning to make sure I wasn't losing my marbles and I can definitely get 360hz at 8 bit with DSC switched off in the monitor OSD - and then 320hz at 10 bit also works when I press 'Test'.

I am on a 4070 FE. I am guessing it may be my card. I am considering upgrading, we'll see. Do you think it is worth it to run without DSC at 300hz or just keep DSC and 500hz and why? Appreciate your help - truly.