By this time, the performance of the macbook pro has probably been debated quite a lot. But i think it deserves more of a beating, when it comes to performance when hooked up to an external monitor - especially those of higher resolutions. I have always been quite pleased with the performance of my standard early 13" Macbook pro. But ever since i bought a 28" 4k screen in order to expand my screen real estate for work, i've been pulling whats left of my hair out of my head due to the dismal drop in performance. Now i know that the Macbook's integrated graphics card doesn't exactly save lives. But come on, i mean, the resolution of the built in screen runs at 2560x1600, which is quite high too. Of course the "need of muscles-curve" is not linear, but i should at least be able to stream a video in 4k from Youtube without dropping half of the frames. And not having the intel GPU core throttling above 100º C. The Macbook Pro should, as the name implies, be able to handle pro tasks. Now correct me if im wrong, but don't see any "Pros" sitting around working on a 13" screen on a daily basis. So this shouldn't be a tall order! This might be yet another band-wagon bashing of Apple's pursuit of thinness. But i personally think that it has gotten too far. In my opinion, it would be better of being 20% thicker, but in return rocking a dedicated GPU and some decent quad-core processor. For heavens sake, im looking into buying a Razer! I never thought i would stoop so low - but Apple is forcing my hand! Am i the only one having these thoughts? Is it worth waiting for the next generation? Will anything change?