* KOSPI rises, foreigners net buyers

* Korean won strengthens against dollar

* South Korea benchmark bond yield rises

SEOUL, Feb 22 (Reuters) - Round-up of South Korean financial markets:

** South Korean shares rose on Thursday, as heavyweight chipmakers jumped after U.S. peer Nvidia's better-than-expected earnings, while the country's central bank made no changes to its interest rate policy as widely expected.

** The benchmark KOSPI rose 0.54% to 2667.71 as of 0103 GMT.

** Chipmakers Samsung Electronics and SK Hynix jumped 0.68% and 3.29%, respectively.

** Nvidia on Wednesday forecast a roughly 233% surge in quarterly revenue that handily beat estimates as the company banked on towering demand for its industry-leading artificial-intelligence chips, sending its shares up 10% after-hours.

** The Bank of Korea (BOK) left interest rates at a 15-year high on Thursday amid signs that the weaker economy is slowing inflation, as expected by all 38 economists in a Reuters poll. The central bank made no change to its growth and inflation forecasts.

** Investor focus is on BOK Governor Rhee Chang-yong's comments at a news conference at 0210 GMT, on the timing of a policy pivot.

** Foreigners were net buyers of shares worth 5.2 billion won ($3.91 million) on the main board.

** The won was quoted at 1,330.9 per dollar on the onshore settlement platform, 0.29% higher than its previous close at 1,334.7.

** In money and debt markets, March futures on three-year treasury bonds fell 0.08 point to 104.41. ** The most liquid three-year Korean treasury bond yield rose by 1.8 basis points to 3.421%, while the benchmark 10-year yield rose by 2.0 basis points to 3.494%. ($1 = 1,331.4900 won) (Reporting by Jihoon Lee; Editing by Rashmi Aich)