Nvidia's (NASDAQ:NVDA) new chief scientist, the respected Bill Dally, explains why he chose...

Nvidia's (NASDAQ:NVDA) new chief scientist, the respected Bill Dally, explains why he chose Nvidia over Intel (NASDAQ:INTC): "Intel just didn’t seem like a place where I could effect very much change," he says, deterred by what he calls INTC's x86 "denial architecture." Intel’s chip is lugging along this x86 instruction set, and there is a tax you have to pay for that.