Could this new partnership jump-start Intel's comeback?Shares of Intel (INTC 22.81%) are flying this week, up 27% as of market close on Thursday. The jump comes as the S&P 500 and Nasdaq-100 gained 0.7% and 1.5%, respectively.The chipmaker's stock exploded this week after Nvidia announced a $5 billion investment and "multigeneration" partnership agreement with Intel.Nvidia bets on IntelOn Thursday, Nvidia said it is investing $5 billion into the struggling company at a purchase price of $23.28 a share. Unde ...