Nvidia is the logical choice to replace a floundering Intel in the Dow 30.It's no secret that Intel (INTC -2.63%) has been struggling. The stock is down more than 60% year to date and has been the worst performer in the Dow Jones Industrial Average this year.The company was once the largest chipmaker in the world, dominating the personal computer (PC) space. That helped it become one of the first two technology companies to join the famed Dow Jones index, along with Microsoft back in the late 1990s. However ...