The world’s largest maker of memory chips and smartphones posted better-than-expected net profit for the fourth quarter, but its core semiconductor business weakened sequentially.

Samsung Electronics reported fourth-quarter profit that rose 130% from a low base, confirming it had missed earlier estimates due to slowing memory chip demand and extra costs as it works towards providing high-end chips to Nvidia.

Samsung Electronics said on Jan. 31 that its semiconductor (DS) division posted revenue of 30.1 trillion won ($20.7 billion) and operating profit of 2.9 trillion won in the fourth quarter of last year.