If you're an Nvidia (NASDAQ: NVDA) investor, listening to what the artificial intelligence (AI) hyperscalers say is a must-do. Microsoft (NASDAQ: MSFT) just made a big announcement regarding its plans, and it bodes well for the chipmaker. The market is still skeptical about AI spendingCurrently, the market isn't accepting hefty data-center capital expenditure (capex) plans with open arms. However, none of the AI hyperscalers believe that and are continuing to ramp up capex. With Microsoft ramping up its capex plans, Nvidia will be one of the primary beneficiaries.