Hello all. I wanting to know the real world performance of having Yosemite on an Early 2009 iMac with the following specs. Ram: 6GB. Processor: Core 2 Duo @ 2.93GHz. Graphics: GeForce GT 120, 256MB. Its currently running OS X 10.7.5 Any information would be helpful, I'm asking this question for me neighbor who asked my opinion and I told him I knew exactly where to get my answer, you guys. haha. Thanks in advance! EDIT: The reason I said "real world performance" is because I know that Apple says it can but I just want to make sure it can smoothly.