Comment by rbranson

Roughly? The Mac Pro has a workstation-grade dual-socket motherboard with Xeon processors, ECC FB-DIMM memory, and four PCI-E x16 slots. The build quality is also significantly better than most off-the-shelf PC hardware. Granted, this isn't important to most people buying their home system to dick around with, but it IS called the "Pro" for a reason. Go spec out the same hardware from Dell or HP and you'll find similar prices.