The Vortex86 ones are based on RISE, but this is a M6117, which originated at ALI (Acer Labs), which became ULI, which was bought by Nvidia (https://www.nvidia.

The Vortex86 ones are based on RISE, but this is a M6117, which originated at ALI (Acer Labs), which became ULI, which was bought by Nvidia (https://www.nvidia.com/en-us/drivers/uli-m6117c/ https://www.nvidia.com/en-us/drivers/uli-m6117c/), and then at some point ended up at DM&P Edit: and indeed you can see this in the PCB pics, one says ALI under the DM&P lettering and the other has an Nvidia logo in the same spot