VSync - On or Off?

"On" if you have a good overall performance, otherwise you'll see screen tearing in some games.

CRT = On
Flat panels = Off

... or was it the opposite Oo

I always make it "off" and I haven't encountered any problems with it yet.

Depends on the game and what I'm using. I can't stand the input delay that it introduces, so I never have it on for shooters since tearing doesn't bother me and I need precision. If I'm using a controller for whichever game, whether racing/sports/platforming, I'd always have adaptive vsync on. It's also nice that it keeps your temps lower than if uncapped.

always on :)

Always off. I like lots of FPS in my games. Unless there's unbearable screen tearing. Only then I'd turn it on.

Always on. The screen tearing hurts my eyes.

Off cause it messes up my mouse movement

On of course. More than 60 fps only serves to unnecessarily spend money on electricity and heat the Pc.

If you don't like screen tearing , you should turn on it. I turn on it because I hate tearing.
If you don't realize difference (like most of people), just turn off.

I don't because screen tearing has never happened to me before

1st Gamer Law: "Always turn Vsync off".

Of course ON! If you say better to leave it off you clearly don't know what is the purpose of this function.

I turn off only for benchmarking and if it course troubles, but this is rare.

What is the purpose of rendering 100+ FPS if your display can display only 60FPS, obviously for 60Hz displays ;)

I can't be bothered to read every comment in this thread, so there's a chance that someone's already said this, but I'm gonna say it anyways.

On - Completely eliminates screentearing. Most of the time turning it on isn't necessary; however, some games (Bioshock) are nearly unplayable without enabling VSync.

Off - Much better performance below the cap (eg. if your card can't reach the framerate cap, VSync will just lower your FPS even further), but allows for screentearing.

That is all.

Whenever I get tearing, usually on. Most of the time off though.

wow this thread is crazy. its the only setting i must play with on for sure. i hate tearing

If I can get a consistent 60fps, usually in older games or straight console ports, I have it on, otherwise off.

If you experience severe tearing or are putting out framerates well above the native refresh rate of the monitor, sure, turn it on. Other than that you don't really need it and it can hinder performance.

Generally on since tearing really bothers me.

Off for competitive gaming since having it on adds input lag.

It depends on your set up. High performance cards or SLI setups usually use vsync to stabilize framerates that skyrocket (like 300+). Vsync keeps them at a nice constant 60. If you don't have something that pushes insane framerates like that, keep it off.

On. No tearing and a much much cooler gpu to boot.

depend of the game.. i usually turn it off, but on some games i turn it on to get a smoother framerate, and only if it doesnt creates input lag

ON.Saves my GPU from burning up.

I leave it on default (usually off), cause I just don't remember until I see tearing for the first time and from that point it's on. Depending on a game this happens anywhere from first minute of gameplay to never.
On the performance part, I noticed difference only in a few multiplayer games with old engines, like CoD.