Advanced Micro Devices Inc (NASDAQ:AMD, XETRA:AMD) has pledged to invest up to $2.7 billion (£2 billion) in the UK over the next five years, betting on the country's ambitions to become a global centre for artificial intelligence research and advanced computing. The US semiconductor titan, one of the top 15 largest companies in the S&P 500, used London Tech Week to unveil a package of investments, partnerships and infrastructure projects spanning universities, scientific research and AI supercomputing.