I play many pc games with Vsync off and this produces tearing, but the fact that it allows games to feel smoother with more graded/gradual increases and decreases rather than stutters in framerate makes the penalty worthwhile. I wouldn't say it is an IQ issue, more an issue of vsync vs. no vsync.
The tearing is due to the horizontal framerate not being in sync with the horizontal refresh rate, right?
That said, as long as the game does not drop below 30 and its framerate decreases/increases incrementally, it is definitely playable imho. The tearing is something that one must get used to.