Don't listen to what the above have said, let's be realistic. There are huge advantages to be able to drive a higher frame rate especially with a higher hz rate monitor.
The key is being able to match a stable FPS with a locked hertz rate on your monitor.
Graphics are unimportant, having a higher FPS is king.
Work out your average FPS, lock it using a program such as rivatuner and enjoy the advantages you get as a result. Obviously, FPS games will get the greatest advantage but having a stable FPS on even a RTS is a huge advantage.
Your best bet is too google battle nonsense, watch his youtube videos. Man is smarter than all of us and has some amazing videos that will benefit almost all of you.
Thanks for the tip about battle nonsense. I watched a couple of his videos. One of his confirmed something that I thought I was seeing, which is that VSYNC seemed to make things more sluggish. I'd turned it off on all my games and just use frame limiters whenever possible.
I really liked the video below:
https://www.youtube.com/watch?v=PnpTVFuIUUU
I played a ton of BF2. It was great for playing with friends as a squad. The new Battlefields feel more like Counterstrike than Battlefield. BFBC2 was also pretty good. I would have bought a BFBC3 had they made it. Battle nonsense is spot on in his criticism of BF4.
I do think Blackdream's and Cyanara's comments were helpful in regards to COH. I just went through a hardware update and it didn't change COH2's very much.