The Snapdragon 820 is expected to be produced using Samsung's 14nm node manufacturing technology. That is the same process used to manufacture the Samsung Exynos 7420, which powers the Samsung Galaxy S6 and Samsung Galaxy S6 edge.
The Snapdragon 820 was put through the Geekbench benchmark test and tallied a single-core score of 1732. The multi-core test resulted in a score of 4970. The first test beat the single-core scores of 1486 posted by a Exynos 7420 powered Samsung Galaxy S6, and the 1227 tallied by a Snapdragon 810 powered Xiaomi Mi Note Pro.
With the multi-core test, the Snapdragon 820's score of 4970 topped the 4424 scored by its predecessor, but failed to top the 5284 tallied by the Exynos 7420. Sony, HTC and Xiaomi are said to be the first handset manufacturers in line to use the new chip, which might appear in handsets starting this fall.
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source: MyDrivers (translated) via GSMDome