Hey there, I noticed that the performance of Macbook pro 15 2017 on battery is somewhat mediocre(laggy scroll on Safari and Finder, laggy swipe on workspaces). I noticed that Macbook pro 13 inch has better! integrated graphics, it's about 15% percent better in 3DMark: https://www.notebookcheck.net/Iris-...-HD-Graphics-620_7656_7652_7435.247598.0.html I'll address the arguments that would show here: 'but pro 15 has discrete graphics' True, but it's turned off until you ran app that requires high performance graphics(Photos.app for instance) and drains battery easily. So you're using integrated graphics most of the time. 'Well they saved money because two graphics' But they could apply the same! And 15 inch has bigger screen estate to render and they gave even worse graphics! You can go to full screen safari default page and scroll up(favorites icons will go underneath the address) and this has, like, 30 fps? I had 13 2017 and it had no lags/fps drops in normal usage. What the hell?