Hello I am looking to buy an imac, something that will last me 3-4 years. I am a graphic designer, I work with Web + Print. These are the two models I am looking at: 27 inch Originally released October 2012 3.4GHz quad-core Intel Core i7 (Turbo Boost up to 3.9GHz) 8GB memory 1TB Fusion Drive NVIDIA GeForce GTX 680MX with 2GB vs September 2013 27-inch 3.5GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.9GHz) 8GB memory 3TB Fusion drive1 NVIDIA GeForce GTX 780M graphics processor with 4GB of GDDR5 memory Built-in FaceTime HD camera On both these machines I will upgrade the ram to 16GB. To me I feel like the 2012 model should suffice, but I really don't know what to think nor how I feel about buying older technology. Please let me know what you think.