I purchased a max spec 27" Retina iMac in May, 2015. Could someone here tell me if the processors in the new refresh is newer than what I have? Also will the OWC 64G of ram kit work with the one I got or is it only compatible with the refreshed model? Maybe I'm missing something here but I only see the refresh having El Capitan and the new rechargeable keyboard and mouse or did the processors indeed get a bump?