Guitar Hero 3: Legends of Rock [BLES00134]

Getting stable 30 FPS, can't record a video cause OBS suck.

Specs in signature.
Can surely be more, but for me it's playable.

P.S. Requires Strict Rendering Mode, but doesn't affect rendering speed.

I just tested with latest version (RPCS3 v0.0.5-6573-c5caaa921 Alpha), this game is FAR from playable, the 30fps are not consistant at all, it all depends on the stage you choose to play, some stages are a lot heavier in graphics than other, and I have the same CPU as you.
Not to mention the audio becomes incredibly choppy and horrible when you use star power.

I know there is audio stutters sometimes, as far as I tested, after it finishes to build the shader cache, every stage performs around 29~33 FPS. I've not encountered any hard drop below playability (< 23 FPS).