Hello, Currently I have one of the first 2012 Retina Macbook Pros the lower end model but with 16GB of RAM. As you know that model has dual GPUs. I`m going to be upgrading to a newer one as my Apple Care will run out in July and I dont usually keep MBP that long. Can anyone tell me how much of a diffrence is it for none intense video editing or game playing to by a lower end current 2015 rMBP ? I really dont want to waste extra money and the lower end model seems to suit me with all other specs just graphics seem to worry me a bit.