Originally Posted by dentnu
I am using an Nvidia card so I believe correct me if I am wrong I can not use freesync ? Would I still be able to use the 75Hz if I can't use freesync ? Thanks
Yes, you're correct. There's no technical
reason NVidia can't
push an asynchronous frame rate using Freesync techniques vs. their own Gsync standard, AMD left it open for use. But they don't. Not sure if the 75Hz range is really available outside of Freesync, I'd look for a detailed spec of the monitor you're after and see, maybe with overclocking but that's on you then not official specs.
As for the best without Freesync or Gsync (or with either but under $1k) I think the advice you've gotten so far is pretty good. The Dell runs the cheapest at the moment, the LG 97 or 88 versions are also both under $1k street these days. The Acer XR341CK might be also. Of the three the Dell has the largest absolute input lag however and only claims to be a 60Hz panel, so if you really want to take advantage of as much of the '75Hz' as you can, take that into account. I think the 34UC97 also claimed only 60Hz but since it's the exact same panel used in the Acer XR341CK and Acer X34, the panel clearly can be pushed a little.
Tom's Hardware just reviewed the 34UC98
by LG which is the successor to the 97...has twice the curvature (1900mm radius vs. 3800) and adds Freesync which the 97 didn't have. Seems to get pretty good marks for everything except for minimum black level (they bumped it a little perhaps to help with apparent uniformity/ backlight bleed). Releasing at $1099 but will probably be sub-$1k soon.
The 98 by the way has HDMI 2 connections so it should be able to push the 3440x1440 at 60-75Hz refresh rates, while the 97, the Acer XR341CK and the Dell all have older HDMI and can only push 30Hz at native pix density -- you must use display port to hit 60Hz and above. Don't know about the 88...it's somewhat newer than the first gens so might also have bumped up the HDMI spec, do your homework. May not be an issue but thought I'd mention it depending on your card.
Disclaimer - I own an XR341CK (Acer, Freesync, 3800mm radius AH-IPS) and love everything about it except the horrendous menus. There is some BLB but I can live with it. Fortunately I rarely need to use them. If I were buying today I think I'd look very hard at this new LG or at the Acer XR342CK (likely exact same panel, Freesync and 1900mm) which I've seen announced but not yet reviewed. For me however Freesync is a definite want since I have a Fury card now and likely will upgrade to Vega late this year (unless a high end Polaris 10 card, RX490X-ish sort of numbering, really pushes into Fury-equivalent performance, in which case I'd "side-grade" not "upgrade" to reduce power demand and thermals, and think hard about Crossfiring 2 of them for upgrade beyond that).
Also, semi-off-topic. I was suffering some flickering and loud popping sounds / occasional monitor desync using Freesync, 3440x1440 over DP, but only in Elite Dangerous. Other games could just hammer the framerate fine without any of that (e.g. Talos Principle). A few versions of the Crimson drivers later...totally gone. So it was definitely driver related not monitor. Curious if reports of monitors flickering at 75 Hz on Nvidia cards at 3440x1440 might be similar driver issues not really the monitor, but have no actual knowledge to offer.