AMD CEO, Dr. Lisa Su, has said that chips made at TSMC fabs in Arizona are more expensive than those produced by the chipmaker at its facilities in Taiwan.

Speaking at an AI summit in Washington, DC yesterday (June 23), Su said AMD expects to receive its first chips from TSMC’s Arizona fab by the end of the year, but noted they would be “more than five percent but less than 20 percent” higher in terms of cost.

However, in an interview with Bloomberg after she made the comments, Su said that for AMD, diversifying its supply chain was worth the additional costs, adding: “We have to consider resiliency in the supply chain… we learned that in the pandemic.

“The idea that you think about your supply chains not just by the lowest cost, but also about reliability, about resiliency, and all those things. I think that’s how we’re thinking about US manufacturing,” she said, noting that when you “average it across everything else that you need to build this computing infrastructure,” it’s a “very good investment to ensure that we have American manufacturing and resiliency.”

Trump has previously pledged to “return production” of computer chips and semiconductors to the United States by imposing a “100 percent tax” on their overseas production. Despite this, the President has yet to impose any semiconductor-specific tariffs.

Following Trump’s comments, in March 2025, TSMC’s chairman, C.C. Wei, visited the White House to announce a $100bn investment in US chip manufacturing, in addition to the existing $65bn investment the company has made to build its fabs in Phoenix, Arizona.

In April, AMD announced its Turin 5th-generation Epyc CPUs had been validated at TSMC’s chip fab in Arizona and said that the company’s 6th-generation Epyc processor, codenamed Venice, will be the first HPC CPU to be taped out on TSMC’s 2nm (N2) process technology.