That's at the beginning of the book, and it was apparently something of a debacle. The NV2 chip that was supposed to go into Sega's next-gen console never made it, but a $5M investment from Sega did keep Nvidia afloat until the Riva128 launched.
Despite buying a Dreamcast on launch day I only heard about this story in the last week or so ago in a YouTube comment with Jensen Huang congratulating sega on the new virtua fighter. Unfortunately he keeps calling it virtual fighter:
