Hi [NAME], There's not enough info in the initial post. Cheapest is not best.  We don't have to know what it is, but have you decided on a budget? If you're thinking of upgrading everything or just about everything - CPU, RAM, GPU, and perhaps PSU, then one might as well get something newer - Like a newer Optiplex, Precision, G5 tower, or XPS just to name a few. [IMAGE]  
Hi i would like to know the best and cheapest upgrade i can get for my OptiPlex 3010 it has a  Core i3-3220 @ 3.30GHz and 6 Gb of ddr3 ram 
OptiPlex 3010 upgrade