gaming at QHD buf gpu scaling to 4k... is this possible on pc

[bigmike20vt]

( TLDR ) and if so how?
Thanks

Hi

I have a sony 65XE9305 HDR TV and it really looks nice however, whilst the scaler in it certainly looks the part and is great for movies, for gaming if you run anything other than native 4k the lag is quite high (iirc 80ms compared to around 20ms)

on my ps4 pro I can have the games running at 1080p but still have the console scale up to 4k so my TV gets a 4k signal but it runs at 1080p performance and still with HDR on.

is it possible to do this on pc? and if so how ? (only difference here is i would choose QHD instead of 1080p as my 1080ti can manage that easily).

QHD visually i find only ever so slightly different to 4k however it is so much easier on the hardware and i can literally run all settings to the max... 4k on the other hand i need to make compromises to games settings.

but i would like to have my tv displaying 4K if possible.....

thanks

 

[bigmike20vt]

If I'm reading it right DSR works the other way around to what he wants - he wants to render the game at 1080p and have it upscaled to 4K so as to fill his TV screen without using scaler/post-processing on the TV which results in additional latency.

exactly! (tho it will be QHD upped to UHD but the point stands )

thanks guys for the info i will check out tonight... so just to confirm, in game i select what resolution i want and (hopefully) windows software will do all the rest?

cheers

 

[bigmike20vt]

Madness, but yes misunderstood. It is possible to use DSR and CRU for the same end, though.

Hi thanks for the reply. can you tell me why it is madness please? (if there is a good reason not to do it..... i wont!

thanks

 

[bigmike20vt]

lol, it's not really madness - just would rather if I were you play at 4K in all its glory rather than upscaling

well i did initially pre-order a 2080ti for that reason... but i decided for a number of reasons to get a 1080ti instead.

i would love to game in 4k full detail, but, after doing some tests, my subjective view was QHD running on full detail at a solid 60fps was preferable to either 4K full detail with a lumpy framerate OR 4k solid 60fps but medium detail.

I also do not have the time to spent tweaking each game individually and working out which features have little impact on fidelity but big impact on performance.

 

[bigmike20vt]

i do agree but like i said its a time thing, my game time is v limited these days so i do not want to spend it tweaking settings.

also i was playing around, on my tv at least the jump in clarity from 1080p to QHD is massive.... but the jump from QHD to UHD i actually found to be pretty minimal but with a massive change in performance.

to each their own however.

(also. .... and i have not tried this yet as it only just occurred to me......................)

HDMI does not have the bandwidth for 4k / HDR and 4:4:4 Chroma subsampling

but i imagine it will have at QHD.... (but that said if i try this route then i suppose it will be back to letting my TV do any scaling)