TigerDirect offers the Intel Pentium Dual-Core G3258 3.2GHz Desktop Processor, model no. BX80646G3258, for $74.99. Coupon code "SIO139297" cuts it to $54.99. (Amazon has it for the same price.) With free shipping, that's the lowest total price we could find by $15. This processor features a 3MB cache and two memory channels.