The result should be a sharp increase in performance, but, more importantly - a drastic drop in overall power consumption. How sharp of a boost in speed? Well, the source tips that Samsung is probing the test batches of Exynos 8890 at the whopping 4 GHz for the powerful custom cores, and no less than 2.7 GHz for the eventual Cortex-A53 ones in a big,LITTLE architecture. This is about a 30% increase from the 8890, which was being tested at 3 GHz maximums. Of course, these are the peak clock speeds, which will likely be capped a lot lower for a retail handset, but they still show the potential of the 10nm production process to deliver huge power jumps without blowing up the roof.
We mention the potential for overheating, as, at the kind of mobile processor clock frequencies we are at now, Qualcomm has trouble producing its flagship Snapdragon chips in a way that is sustainable in terms of power and thermal efficiency. Adding to this observation is the source's tip that, at 4 GHz, the Exynos 8895 achieves the power consumption of the upcoming Snapdragon 830 at 3.6 GHz, which bodes well for the Galaxy S8, Note 8, or whatever phones Samsung decides to equip with its 10nm chippery.
source: I IceUniverse (Weibo)