The memory of a graphic card is RAM type. That means, it is rewritten over all the time, it doesn't actually save anything on it. Only the last second or so could be saved from it.
What actually are the "AH saving's procedures" you're referring to? The only things I can imagine as "savings" in AH are settings - both video and joystick - and filmed sorties. The former have only to be done once, the latter can be automated.