https://wccftech.com/amd-ryzen-9-4900u-renoir-8-core-ultra-thin-notebook-cpu-spotted/

AMD's Ryzen 9 4900U, which is going to be the fastest 8 core Renoir CPU for ultra-thin notebooks, has resurfaced. The Ryzen 4000 U-series processor has been spotted by TUM_APISAK in 3DMark's database, confirming that we are getting closer to the launch of faster notebooks in compact & thin designs.

The AMD Ryzen 9 4900U was unofficially revealed back in February when several OEMs listed the processor for their latest notebook designs. The CPU remains the only Renoir SKU that hasn't been announced yet by AMD but we have various reports and listings which confirm that AMD is indeed making the Ryzen 9 4900U.