[mman1506]

If your putting together a inexpensive computer and you are ok with something a bit adventurous might want to look at the newly released Intel Pentium G3258 Anniversary Edition, it's a 68$ processor that can be easily overclocked to 4.5-4.8 GHz. When overclocked the processor is comparable to a 379$ i7-4790K in single threaded applications like Solidworks and Inventor.