There are a lot of people saying they "think" AMD is getting $100 per unit. No one, from what I've read out there has an exact return of rate per unit.
For example: IHS thinks CPU/GPU supplier AMD is receiving $100 per PS4 unit. If reasonably accurate, that figure could mean AMD is also receiving ~$100 from Microsoft for each Xbox One produced, given the PS4 and One rely on very similar AMD Jaguar processors.