Since everyone is talking about Snapdragon 820 and 823 now, I doubt anyone would notice the Snapdragon 821 that slots between the 820 and 823. It is first spotted on a magazine with the specs listed for an Asus Zenfone 3 Deluxe. It supposedly clocked higher than the Snapdragon 820, but slower than the Snapdragon 823.
The previous rumored were that Asus Zenfone 3 Deluxe would have 2 Snapdragon 8xx option, which was supposed to be 820 and 823, but this new printed spec sheet on the magazine of some sort shows that it is using Snapdragon 820 and 821.
What do you guys think about the unannounced Snapdragon 821 since everyone is focused on Snapdragon 820 and 823.