Looking for a reasonably potent mini-PC, I have found that in current devices - probably due to the lower requirements of Windows 8 - to be installed only weak processors. You want something more, it will be expensive. By i3 3220, the WD50000AAKX hard drive and a memory expansion to 8 GB nachgekauften original contained (maximum configuration) filled the device inexpensively and demanding requirements.
A deduction of points there, because the unit, although the i3 3220 nominally supports a memory interface with 1600Mhz, recognizes the built 12800er / 1600MHz bars only 1333MHz memory and no manual adjustment of frequency permits. Although the incorrect detection may be due to the memory, but there are such problems again and again and should therefore be fixed in the BIOS.