According to the source, MediaTek yesterday the company has quietly expanded its range of single-chip system Helio P15. On the website of the company per se is not, so you have to rely on third-party data.
Helio P15 has eight processor cores Cortex-A53 with a frequency of 2.2 GHz and GPU Mali-T860 MP2, running at 800 MHz. That is something between P20 and Helio P10, that, in fact, reflected in the title.
Apparently, Helio P15 will replace P10, whereas Helio P20 will take place on a step above. Performed novelty is alleged to 28-nanometer process technology, while the SoC Helio P20 is designed for standards 16 nm. In addition, aware of the single-channel controller RAM with support LPDDR3-933 and modem LTE Cat6.