I purchased a 2010 8-core Mac Pro last year. It still has the original 6Gb of RAM, which I want to upgrade now. OWC's performance tests show a drastic improvement with 12Gb, and rather minimal boost after that. But this is one test and does not necessarily reflect real life. I do mostly Photoshop work. Some 3D modeling and rendering, and some video editing (Final Cut Express, After Effect). I'm leaning towards getting 24Gb (4Gb x 6) or 32Gb (4Gb x 8). How much does installing RAM in 3's affect the Macs in real life?