WYP
News Guru
This is the power of DisplayPort 1.4 with DSC.
Read more about ASUS' ROG Swift PG43UQ 4K 144Hz monitor.
Read more about ASUS' ROG Swift PG43UQ 4K 144Hz monitor.
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ASUS' ROG Swift PG43UQ delivers 4K 144Hz support with DisplayHDR 1000
- Thread starter WYP
- Start date
NeverBackDown
AMD Enthusiast
Impressive!
I really would like to see a comparison of graphic quality between 120hz vs 144hz. Basically no compression vs compression (since DP1.4 can do 120hz without compression of any kind).
I really would like to see a comparison of graphic quality between 120hz vs 144hz. Basically no compression vs compression (since DP1.4 can do 120hz without compression of any kind).
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The_Governour
New member
This seems nice. Too bad it a bit too big for my monitor taste. 32* would be gold though.
NeverBackDown
AMD Enthusiast
Agreed. 32inch at most personally.
amon.akira
New member
4k 120hz? how is possible? i have the philips momentum 43" with dp1.4 and i can do 4k 60hz 10bit 444, if i do 75hz i can use only 8bit...of course i can do 75hz 10bit if i choose 1440p.
Dicehunter
Resident Newb
The Phillips Momentum only has a 60Hz panel, This monitor has a native refresh rate of 120Hz.
NeverBackDown
AMD Enthusiast
In addition to this it's a native 8bit Panel. FRC is just a hardware technique that makes it look like 10bit.
amon.akira
New member
NeverBackDown
AMD Enthusiast
Dp 1.4 can do 4k 120hz dude.
amon.akira
New member
3840 x 2160 x 30 x 120 = 29.8gbit so yes is true but with 8bit deep
but now i can't explain because on my system i can't enable 10bit in >60hz on 4k resolution, but work fine on 1440p. :huh:
Dicehunter
Resident Newb
amon.akira
New member
144 with dsc
4k 120hz 8bit i suppose...see above
H x V x C x F
3840*2160*24*120=23.9gbit
3840*2160*30*120=29.85gbit
dp1.4 effective bandwidth 25.92gbit
anyway my panel accept 75hz and work fine, but i can select only 8bit if i go above the 60hz, tried with CRU too
Think you misunderstand. What they are saying is that "YOUR" monitors panel doesnt support it. What ever brand or model you bought. The panel on it, isnt capable of achieving what you want.
It would be like me buying my PG348Q @100hz, and saying I can't get 4k @ 120hz. The ports standards support it, but my panel doesnt.
amon.akira
New member
lol
never say i want do 120hz on my panel, i know is 60hz, but my panel support up to 75hz, but i can't select 10bit in 75hz 4k so i thinked was a bandwidth problem, because i can do 4k 10bit fullrgb 60hz and 1440p 75hz 10bit fullrgb, but i can do only 8bit on 4k 75hz
maybe is a cable problem or windows/driver problem i don't know.
Amon akira you are right, DP1.4 can't do 4K@75Hz at 10-bits with no compression or subsampling . It is indeed the cable standards bandwidth limiting your ability to use 10-bits transfer mode above 60fps.
(The maximum res/refresh rate stated for a standard online will almost always include values achieved with subsampling, as everything supports it and most original content isn't even 4:4:4 anyway).
This means you can likely use 75Hz with 10bits at 4K in your settings if you try turning your colour format mode down to 4:2:2 in your graphics drivers.
Were you maybe forgetting the blanking intervals in your calculations?
For standard 2160p your calculation would be:
4400(h) * 2250(v) * 75(hz) * 12 (Bits/Pixel@10bits colour depth) * 3 (colours) = 26.73Gbps
(vs DP1.4's 25.92 Gbps without DSC enabled hardware, which barely exists yet)
(The maximum res/refresh rate stated for a standard online will almost always include values achieved with subsampling, as everything supports it and most original content isn't even 4:4:4 anyway).
This means you can likely use 75Hz with 10bits at 4K in your settings if you try turning your colour format mode down to 4:2:2 in your graphics drivers.
Were you maybe forgetting the blanking intervals in your calculations?
For standard 2160p your calculation would be:
4400(h) * 2250(v) * 75(hz) * 12 (Bits/Pixel@10bits colour depth) * 3 (colours) = 26.73Gbps
(vs DP1.4's 25.92 Gbps without DSC enabled hardware, which barely exists yet)
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Eddie long
Member
There is a 32 in 1400 nit HDR g snyc 4k144hz 10bit coming pg32uqx but your not going to like the price , just working which arm and leg I can do with out
amon.akira
New member
oh finally someone with tech info, yep i know blanking intervals but i just forgotten them, anyway is yet strange because you have calculated with 12bit (36bit) instead the 10bit
if i do
4400 * 2250 * 75 * 30bit are 22.28gbit
i see my dp1.4 link rate in gpuz 5.4gbit x 4lanes = 21,6gbit max bandwidth?
amon.akira
New member
2080ti asus strix oc version
i use the cable bundled with momentum 43" philips, 1.4 i guess
edit
The transmission mode used by the DisplayPort main link is negotiated by the source and sink device when a connection is made, through a process called Link Training. This process determines the maximum possible speed of the connection. If the quality of the DisplayPort cable is insufficient to reliably handle HBR2 speeds for example, the DisplayPort devices will detect this and switch down to a lower mode to maintain a stable connection. The link can be re-negotiated at any time if a loss of synchronization is detected.
so maybe can be a cable problem :/
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