Nice result. I just tried my XFX 8800GTS 320MB to run at 700/1100 yesterday, it run stable but temp goes until 80° on load and i got scared...
some one tell me... my core clock can take 750MHz or BLOW UPPPPPPPPPPP
I can almost guarantee you won't be able to run stable at 750Mhz without some sort of voltage mod. Also which I recommend you don't do. Don't worry about getting more 3dmarks. Its not like you can trade them in for stuff, although you should be able to