I went to the intel website to see what processors are available and they list the processors as i7-4770... and then a letter K, R, T or something like that. I WILL be buying a new 27" iMac and would like to to know which processor is in the current iMac. As I see it, intel offers several different i5 and i7 processors that have the same ghz ratings but yet they are different processors. I'd like to know which one they are using now (the i5 and i7) so that I can see what difference is made when they do the next speed bump. Does anyone know the answer to this because I wasn't able to tell on the Apple site.