The 780 beats it by quite a bit, and the added memory is brilliant, but it depends if you need it. If you are doing things like Crysis 3 on Ultra at 1440p etc, then the 780 will be a much better choice, the 7970 is cheaper, but doesn't match the 20-30% better performance.
Get the 7970 GHz edition and I think AMD is giving away bioshock infinite and crysis 3 with every 7*** series graphic card the 780 isn't worth the extra cash heres a benchmark: http://www.anandtech.com/bench/Product/8... the 7970 Ghz edition performes pretty well against the 780 even beating it in some games.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.