Apple makes desktops? Certainly not consumer grade ones, the iMac is a laptop on a stick and the Mac Pro is for pros.
You mean the ones that trounce most stock Dell Desktops in Speed tests?
CPU is Desktop Class. So many people think they still use mobile.
GPU is Mobile but 750 / 755 / 775 aint bad at all.
Fusion Drives / SSD are incredibly fast.