I think we are talking about a LOT more engineering to deal with the extra heat.
Maybe even back to a "brick-on-a-rope" external power supply.
Obviously, Apple's decided one chipset for both mobile and desktop consumer models is their best option.
That decision was probably driven by both the heat issues with desktop CPUs and future support costs involved with multiple chipsets.
You're clearly in the Mac Pro demographic, which offers much better performance, for a significant price premium.
Maybe even back to a "brick-on-a-rope" external power supply.
Obviously, Apple's decided one chipset for both mobile and desktop consumer models is their best option.
That decision was probably driven by both the heat issues with desktop CPUs and future support costs involved with multiple chipsets.
You're clearly in the Mac Pro demographic, which offers much better performance, for a significant price premium.
... but for the same cost and a little more engineering Apple could have some very competitive desktops.