34gn850 is amazing monitor, but definitely pricey. put a lot of hours on mine, tbh only downsides are black levels aren't that great and no swivel. i think there's a newer model that's a bit cheaper, forgot the model name.
3080 or 6800 xt are great gpu for 3440x1440 144hz+. you won't get high fps in every game, but doable and g-sync compatibility helps a ton
tons of modern games support 21:9. if a game doesn't it's usually a simple ini fix or something. pcgamingwiki or wsgf are great resources. and seeing that you have 3080 it's a great pair. but bear in mind that still won't reach high fps in intensive games like cyberpunk or with raytracing enabled even with DLSS. least that monitor is g-sync compatible so it'll smooth things out when fps fluctuates. another thing too is fov, some games don't let you change it very much or causes fish-eye effect, and on ultrawide adjusting fov is a must
So I was fortunate enough to secure a 3080, but feels like the temperatures are too high. was playing cyberpunk and temperatures rose as high as 85c, and clocks fell below boost. this was with stock everything, including fan. tried ac valhalla and rose to around 82c. don't think it is my case in particular because it ran my 2070s just fine. tried to crank the fan speed and it helped a bit, but now it sounds like a jet engine.. evga 3080 xc3 btw
actually depends on the monitor. if it's one that has freesync premium (pro) and a wide range, it should support LFC which can enable adaptive sync below the minimum by doubling the refresh rate. but i'd still stay above the minimum, the LFC is best when you get stutters
3440x1440 benchmarks if anyone's interested: https://www.pcgameshardware.de/Geforce-RTX-3080-Grafikkarte-276730/Tests/Test-Review-Founders-Edition-1357408/4/
it's in german but you can filter out the results. for me tho, seems very good at this resolution, tho i am curious about 3840x1600 benchmarks
gsync has a dedicated proprietary module inside the monitor, gsync compatible doesn't have it and is usually freesync, but is tested and verified by NVIDIA. the former has a range of 1hz to the max refresh rate, variable overdrive, sometimes ULMB, etc.
Works out of the box for me. in fact it's already enabled when i plugged it in. 48-144hz, but seems LFC is supported so you could say 1-144hz. its a great panel too, very good colors, very fast, some IPS glow
it can do 160hz as well but is 8-bit color
but if you want cheaper i heard of the Acer nitro XV340CK
well, another post about the 3000 series no surprise there
tho this is more towards Nvidia warranty and RMA experience. honestly want to try out the FE cards but i heard some mixed stories about Nvidia's customer service, anyone can vouch ?
honestly found curved panels to be quite nice for ultrawide. recently went back to a flat ultrawide and it was really strange, but you get used to it. downside is that you can't set it to portrait mode
So I learned that Gsync compatible monitors are capable of LFC below the minimum adaptive refresh range. i confirmed this when a game dropped below 48fps, the minimum effective VRR range of the panel. the OSD shows the effective hertz of the monitor double of the fps. And i dont see any kind of tearing which is great. however i wonder if the smoothness is any different with an actual gsync monitor, because seems all of them have working adaptive sync across the entire refresh range. obviously sub 60fps gaming is never gonna be smooth, but if there is any appreciable difference.
also i don't quite understand how LFC works. i know it doubles the refresh rate, but does that mean every frame is actually two frames at same time ?
edit: also wonder if there is a spike in lag as the monitor goes from non-LFC to LFC. like when game fps from 50fps to 30fps
Just be aware that some 144hz VA panels may advertise a 1ms GtG response times, however the lot of them aren't actually fast enough to achieve a true 144hz experience. Because the pixels don't change fast enough, resulting in ghosting or overshoot. the only way to really know this is to find in-depth reviews that measure response times across the entire refresh range, from 144hz all the way down to as low as 30hz. While a panel may perform nicely at 144hz, there may be some ghosting at lower refresh rates because of poor overdrive.
it was an ultrawide VA i tried and yes it had a lot of ghosting. tbh it depends if your sensitive to it, i found that i was and couldn't deal with it. the LG is very fast, super smooth and crisp. and this is across the refresh range, some panels don't even have good response time as you go lower the refresh rate. but i heard more recent VA panels handle ghosting a lot better