Tbh I don't think you should buy a 144mhz under the premise you need to hit 144fps.
The beauty of the high refresh is you will not need vsync to avoid screen tearing on demanding games that run over 60 but under 144 and you will have a noticeable improvement in fluidity of motion. Anything over 80 fps becomes very hard to distinguish from higher fps and is marginal at best.
This coming from someone who is super sensitive to fps!
I don't think many rigs run demanding games maxed out at 140fps so don't worry about it.
i am not sure about this tearings ,because i dont see this)))
Need another one 3D monitor with nice picture)