Advanced Micro Devices' CEO Lisa Su shut down concerns over Big Tech's elevated spending during an interview with CNBC's "Squawk Box" on Wednesday and said investing in more computing will accelerate the pace of innovation."I don't think it's a big gamble," she said. "I think it's the right gamble."Many of AMD's hyperscaler customers over the last 12 months have beefed up spending as the technology reaches an "inflection point" and companies can see the return on that spending, Su added.Su's comments come a ...