When it comes to processing speed and multitasking, the HP EliteDesk 800's Intel i5-4670 3.1GHz quad-core processor is quite adequate. With four threads of executable data per core, the EliteDesk has excellent multitasking capabilities.

The HP EliteDesk 800 has a quad-core 3.1GHz processor

The power supply unit is only rated for 135 watts

If you're looking for the latter, HP has a machine for you. Dubbed the HP EliteDesk 800 Desktop Mini (just rolls off the tongue, doesn't it?), the computer is in a tiny form factor, not much larger than a standard cable modem or home network switch.