The same as the console versions... with alot of frustration thrown in!!
They did make a job of mentioning the bugs in this game, but to still give it a 7.5 is baffling.
This is a rhythm game. It is not an FPS where a few laggy moments have no real effect. In this game half a second of lag can lead to a wasted attempt at a high score! It is crucial that the game runs without lags. So a game like this is not playable, and therefore deserves MUCH lower than 7.5.
Now I have heard some people with otiose hardware configurations have managed to play this game without any lags whatsoever. Great. Kudos to you all.
But Guitar Hero 3 is not a game that is advertised for its graphics. It is intended for the less hardcore gamer who can't tell the difference between DX10 and and DX7. Its a FUN rhythm game.
It has been very badly ported onto the PC, and the truth is, it is not worth your money.
If you play casually then you will probably not mind at all. But if you are actually trying to achieve a high score... it is IMPOSSIBLE.
The game lags at least 2-3 times PER LEVEL for me. The lags can be as subtle as a small hiccup all the way up to a 3-5 second slow down, in which time you cannot see any notes at all (goodbye 4x multiplier !).
So I would like to point out that this game is BROKEN. The only upside is that it is cheaper than the console versions, but with such bugs it should be much much cheaper.
DO NOT BUY until there is a major patch released, or unless you have a killer hardware setup!
ps. My hardware is as follows:
ATI X1900XTX
2GB DDR RAM
AMD 3700+ CPU
Before anyone says "psh the x1900xtx is old!" let me remind you that it is way beyond what the MINIMUM REQUIREMENTS of the game ask for, and secondly, people who want to play GH3 should not be required to have the most up-to-date hardware.
I hope I have helped at least one person from throwing away a good £45.