Building a 32-Thread Xeon Monster PC for Less Than a Haswell-E Core i7
 

Originally released in 2012 for a whopping $1,550 and beyond, thousands of Xeon E5-2670 CPUs hit the second hand market last year as massive data centers upgraded their servers. This 4-year old CPU delivers 8-cores clocked at 2.6GHz with a 3.3GHz turbo frequency and a large 20MB L3 cache, but with supply overwhelming demand prices have plummeted to just $70. Or seen from another perspective: it's now possible to build an insanely affordable 16-core/32-thread beast for less than a Haswell-E Core i7.

http://www.techspot.com/review/1155-...-dual-xeon-pc/