And the article said it was a 3 billion, multi - year deal, implying that that's not the final figure - just the initial payment.ie for the first part/years of the multi year deal.
I strongly doubt anyone is paying for 80 MILLION chips - in advance - with limited knowledge of fabrication costs in 3,6,9 years time ( where they'd be most likely to hit that 80 million figure) - but I don't doubt that the 3 billion includes at least some of the first year or two's worth of chip production.