SEOUL :South Korea's SK Hynix forecast sales of its high-end semiconductors used in generative artificial intelligence chipsets would double this year after reporting a record quarterly profit that surpassed its bigger rival Samsung. Shares in SK Hynix, a key supplier to AI chip giant Nvidia, however, dropped 3 per cent on Thursday as the company warned of steeper demand declines in commodity memory chips used in smartphones and computers, due to economic uncertainty and growing competition