If you're willing to buy used, this is much faster
http://www.amazon.com/Intel-i3-2120-3-30GHz-Computer-Processor/dp/B00BL5ZFHG/
This one is slightly more but in the same rough price bracket. It too bests that old AMD
http://www.amazon.com/Intel-G3258-Pentium-Processor-BX80646G3258/dp/B00KPRWAZQ/