Ivy Bridge is simply a die shrink of Sandy with an imporved GPU core on die. In your case the improvments would be little unless your incentive is the extra GPU performance and lower power consumpton and heat output. Your only real upgrade for performance when it comes to your CPU is moving over to the LGA 2011 socket and Sandy Bridge-E, which actually while they're excellent performing chips they really only shine there best in heavly threaded environments like rendering and photoshop work.