wow now that has got to be the most vague yet demanding statement i have ever seen. We cant tell you anything about what will and will not run on your 4770 without crossfire without more details.
I can tell you this, you should be able to play just about anything on high at 1280x1024/1440x900 and below, above that you may have to start lowering the graphics settings to get good FPS, but you could play anything at any resolution you wanted up to 2560x1650 assuming you were willing to turn all of the detail settings all the way down and consider 10FPS playable.
Dont ask vague questions in the future, provide enough details for a valid answer to be given, because your question has an infinite number of answers ranging from nothing to everything.