@cats_paw While I necessarily won't agree or disagree to that statement; physical money itself is scam (AKA fiat currency). Its really what people want to say its worth. Any back to my original question, does memory size have a big impact on litecoin mining?
The 280x will be slowed down as it is the faster card. I'm not sure of the technical aspect, but that's just the way it works. Probably to stop one card from rendering frames to far ahead of the other card.
The healing feature is probably the rupture of plastic monomer and catalyst nano capsules. The monomer and catalyst flow and mix in the scratch creating new plastic. I wouldn't scratch the same area to many as the ability to repair will diminish quickly.
https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison
Your looking at a low end HD7000. Discrete GPU have a lot more cores than APUs, which is the big difference. I believe.