Country Comparison
Japan vs South Korea
Japan and South Korea are the two largest AI infrastructure markets in East Asia outside China. Japan benefits from government-backed supercomputing programs and hyperscaler investment, while South Korea leverages its semiconductor ecosystem and tech conglomerates like Samsung and SK Group.
Scale Comparison
Status Breakdown
Japan
Operational7
Under Construction3
South Korea
Operational8
Announced2
Planned1
Energy Mix
Japan
Renewable6
Mixed2
Unknown1
Grid (liquid cooling and efficiency features)1
South Korea
Renewable5
Mixed3
Grid (planned mix with advanced cooling)1
Grid (utility power)1
Unknown1
Top Operators in Japan
Amazon Web Services2 facilities
NVIDIA2 facilities
Oracle2 facilities
Microsoft1 facility
AirTrunk1 facility
Top Operators in South Korea
Amazon Web Services2 facilities
Naver2 facilities
Stock Farm Road, Inc.1 facility
Jeollanam-do Provincial Government1 facility
SK Group1 facility
Largest in Japan
Frequently asked questions
- How does Japan compare to South Korea in AI data centers?
- Japan has 10 tracked AI data center facilities with 2.2 GW of capacity, compared to South Korea's 11 facilities with 6.0 GW. See the full breakdown of status, energy, and operators above.
- Which country has more AI data center capacity, Japan or South Korea?
- South Korea leads with 6.0 GW of known capacity versus Japan's 2.2 GW.
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