Yep, V-Sync. That's why this feature exists.
Some other tips (forget some names):
1) V-Sync and GPU buffers to "1"
2) Disable the anti-aliasing as it's very demanding (already has some this is extra)
3) HBAO (there are three options. Only one doesn't create the annoying shadow around people. I forget which one.)
4) Resolution: drop to 1600x900 if you can't maintain 60FPS at 1920x1080
*I don't know your settings, but I have an i7-3770K and GTX680 @1200MHz. Screen tearing required me to force VSYNC ON, but you don't want it on if you drop below 60FPS so you need to run FRAPS to ensure you're staying above that.
I also recommend ADAPTIVE VSYNC if you have an NVidia card (read up about that). If you absolutely can't maintain 60FPS then consider Adaptive Half VSync but you'll be capped at 30FPS which feels pretty sluggish.