I have been experiencing an ongoing issue with video stuttering and some tearing when not using vsync in certain games.
Here are my specs:
Desktop PC OS: Win 7 64-bit
Intel Core i7 3770 3.4Ghz
Motherboard: ASRock Z77 Extreme4
GSkill Ripjaws 16GB DDR3 RAM
AMD Radeon HD 7870 2GB driver: 220.127.116.11 (CCC 13.12)