thats one country in all of Asia and i wouldnt consider South Korea an emerging market, rather sits between emerging and industrialized (categorized as either depending on who you ask).
https://stockdividendscreener.com/technology/amd-revenue-by-region-and-by-country/
So we have 5 countries (US, Japan, China, Taiwan, Singapore) making up roughly 98% of AMD revenue. Rest of world, i.e. approx. 185 countries account for a mere 2%.
Ofc I expect Nvidia to have a similar lion share in above countries, but their market share in those ROW countries should far exceed that of AMD.