CPU is weaker than in the 13" i5
But considering I've heard before people bought the 15"
solely for the screen size, this makes perfect sense.
Apple should make a uniform "MacBook Pro" where screen size is just one of selectable parameters.
(and perhaps 15" could be configured with also up to 45W CPUs, while 13" is limited to 28W).
But why apple doesn't make a 15" without dGPU and an optional 28W CPU is beyond me.. it would be super easy to fit the 13" hardware into the 15" chassis now that it has enough PCIe lanes.
some people just want bigger screens
(not me tho, I'd buy a 13" hexacore if it was available)