MBP 15 Perf without dGPU?

Well battery life will go up with skylake, heat will go down as well, the difference between dGPU and iGPU should not be too great and more importantly if you don't need the dGPU, why bother, it's just another part to go wrong. All rMBP's have been able to drive a 4K screen since 2013 so I can't seeing an external screen being an issue hell the next update should be able to drive a 5k screen at 60hz over one cable, the current 15 inch requires two cables to pull that feat off.

 

Unless your work is extremely time critical and every single second counts, upgrading the processor will likely yield next to no noticeable performance gain in real world applications, I'd skip upgrades entirely in your case.

 

I have the 2015 15inch without the dGPU and it does perfectly fine for me. I run a windows VM and utilize AutoCAD to create and edit numerous Civil drawings. The Macbook Pro stays quiet and has no issue. The only time the fans kick in hard is when I am playing League of Legends on my 1080p monitor on max settings but that is expected. I can run my 4k TV without a sweat and I am looking to invest in a 4k monitor shortly.

The weight is no different between one with a dGPU and one without. Battery life shouldn't be different either unless you do GPU intensive tasks which would kick the dGPU on. For about 80% of the things the dGPU will remain off and the iGPU will be doing the work.

 

Would you buy an Xbox without a graphics card?

 

Of all the "examples" or comparison I have seen on Macrumors yours is the worst. Jesus christ XD.