I'm about to upgrade graphic card in mac pro 5.1 with 2 x xeon quadcore 2.4 GHz. System version is 10.8.4. Current GPU is 2 x ATI Radeon 5770.
What is the best card for this setup?
How about GF GTX680 for mac card, can I expect significant performance increase if I replace 2 x R5770 with this GTX680?
What about comparison GTX680 / Quadro k4000 / Quadro k5000 and price to performance ratio?
