i have used both.. my personal opinion, no differences pun... i go for the cheapo ones...

i am evaluating a notebook for my company. we had received a p-o-c unit from almost all manufacturer. some of the brands came with the same model but different processor...

we have done the lab test and end user test... end results is, both processor is pretty much the same in terms of delivering the end user experience...

unless, its a processor centric/ graphical centric requirement.. but that required GPU pulak...