** Shares of chipmaker Intel INTC.O up 5.9% to $25.14 in premarket trading

** Nvidia NVDA.O and Broadcom AVGO.O are running manufacturing tests with Intel, Reuters reports, citing two sources familiar with the matter

** The tests are using Intel's 18A process, a series of technologies and techniques developed over years that is capable of making advanced AI processors and other complex chips

** The two tests indicate the companies are moving closer to determining whether they will commit hundreds of millions of dollars' worth of manufacturing contracts to Intel, according to the report

** Intel stock fell 60% in 2024

(Reporting by Harshita Mary Varghese in Bengaluru)

((HarshitaMary.Varghese@thomsonreuters.com))