I was wondering, now that we've lost Iris Pro as the baseline integrated graphics, how does the performance stack up on day to day usage for the new MacBook Pro 15" with Touch Bar using only integrated graphics Intel HD Graphics 530? I'm not talking about heavy graphics/video editing. Just transition heavy action items like Mission Control and other graphics transitions in Sierra. Are we expecting to see any loss in performance if I we are only using integrated graphics? If not, how easily does the dedicated GPU kick in? Are we likely to see any battery drains for simple apps like Twitter (read some article that said so). A good place to compare could be the Mid 2012 Retina MBP with Intel HD Graphics 4000 - did it perform decently on iGPU?