SnapDragon 821 is 10% faster than 820
Technology is evolving fast. Today, Qualcomm introduced 821 which is basically a modified 820. However, this still means that your 5 month $700 phone is old. In other words, S7 Edge, HTC 10 and LG G5 is not the “newest” phones at all.
Anyway, back to the SnapDragon 821, it is based on the same architecture with 820. However, according to Qualcomm, the new 821 is 10% percent faster.
Furthermore, 821 will be used by mobile devices starting from the second half of the year. This might be the CPU that will power the upcoming Note 7. Who knows?