Quote from: S.Yu on September 14, 2019, 16:02:41
IIRC 820 and 821 were notoriously inefficient, I'd be surprised if these were still in production. Only getting rid of old stock makes sense.
You might be thinking of the dismal 810 - the 820 and 821 were something of a return to form, as they benefited from both the significant improvement of the A73 over the A57, and the shrink from the terrible 20nm planar node to 14nm FinFET.
They could be old stock - I wouldn't be surprised if they were still producing these to use up 14nm production lines, though, as they're producing very high yields now and the big players are moving to 7nm.
Either way, definitely a cost thing.