I just jumped on the ultra wide wagon and waiting now for the dell Alienware 1440p gsync to arrive in about 3 weeks.
I hope it will be great and not a faulty one. Ips is a lottery apperently
If you want fine details to be displayed nicely, a bit less aliasing etc I'd go with 1440p but I think 1080p would be absolutely fine too for simracing only!
I'm going from 16:9, 27" 1080p to 1440p now because I do a lot of office stuff at my PC. Text is just too blurry for me now.
Anyway, I'd absolutely recommend going with gsync if you got the budget for it!
I was able to try the Asus pg278qr for 2 weeks a while ago and gsync really blew me away!
50 fps? As good as 60 fps vsync on my current monitor!
70 fps? Already a bit more smoothness on shaky kerbs etc!
100 fps? Oh yeah that's buttersmooth now!
Did an rF2 club race here at RD with it and the most important thing was that I could limit the fps to something around 75 and the drops to sub 50 fps at the formation lap or during the pitstop in the night lighting didn't bother me at all!
Without vsync everything just stutters for me. Even with a 144 Hz monitor and no matter the fps. Above 200 it becomes smooth again but otherwise I need vsync!
Problem with vsync is that it gets hiccups! Race start is stuttering, night transitions are stuttering etc etc.
With gsync you still see stuttering if the fps drop from say 100 to 70 but if they slowly decrease or increase it's barely bothering!
And the great thing is that you can just limit the fps at something stable and it will be fine. A few drops? No problem!
Everything apart from the standard vsync has problems. Fast sync stutters every now and then, adaptive vsync gives tearing and you can
not do the input lag trick (limit at 59.97 fps for example with 60.0 fps vsync active) and no sync just stutters a lot, plus tearing.
Gsync solves this all. I tested it: it's awesome!
I also saw freesync at a friend's and it's as awesome as gsync!
Freesync Monitors generally have a higher input lag but I didn't feel that! It's the signal processing of the monitor internals. About 11ms with most Freesync and 3ms with gsync (processing module is the same in all gsync monitors!). This has nothing to do with how fast the pixels respond though!
That said: if you are fine without vsync, with the input lag of vsync or the other vsync options are working for you: you don't need gsync. If you're bothered with anything I said, gsync will be awesome!
Is there a 32:9 gsync model yet?
About gpu power: I have a gtx 1070. 2560x1440 was stressing it but reducing some settings did the job. 3440x1440 will be on the limit but I prefer resolution over eye candy.
2560x1080 shouldn't be a problem, especially with gsync where you can limit the fps at whatever value and it will look good! Below 50 will feel slow though ofc as it's just low fps then! It won't stutter, it will more... "feel like pudding"
I hope my input helps a little!