South Korean chipmaker SK Hynix generated record earnings to outpace rival Samsung for a second quarter in providing high-end memory products for the artificial intelligence boom.

The surge in demand for high-bandwidth memory (HBM) driven by AI servers has positioned SK Hynix as the clear leader in the HBM market, with Micron also posting strong operational results for 2025. Meanwhile,

SK Hynix is making record profits due to the increasing demand for AI chips, particularly from Nvidia. This performance has propelled it past its competitor,

South Korean chip giant SK Hynix Inc yesterday reported record quarterly profits, thanks to soaring demand for artificial intelligence (AI). The world’s second-largest memorychip maker dominates the market for high-bandwidth memory (HBM) semiconductors and is a key supplier for Nvidia Corp.

SK Hynix reported second-quarter 2025 revenue of KRW22.23 trillion (US$16.17 billion), up 35% year-over-year, driven by surging demand for AI and high-performance DRAM. The company plans to boost capex to meet growing demand for HBM and AI memory products.

Kicks off HBM4 supply SK hynix is cranking up the memory arms race, confirming it’s building 24 Gb GDDR7 modules to give next-gen GPUs fatter VRAM buffers while lining up HBM4 for AI and HPC workloads.

SK Hynix is confident the boom in high-bandwidth memory chips is set to continue. That is good news not only for the South Korean company, but should also bolster its U.S. rival Micron Technology.