Hello, While I wait for a newer Mac Pro, I would like to upgrade my current one. I find that my 2013 rMBP is able to work much faster in Final Cut Pro X than my 2010 Mac Pro can. My 2010 Mac Pro has a PC NVIDIA GTX 980 card in it which might be causing an issue. Would a Sapphire HD 7950 be better than my GTX 980 for FCPX and things like that? How much better would we be talking about, would it be worth $500?