MediaTek's chipset offerings are generally aimed at the entry-level and mid-range segments of the smartphone market, where the company has been able to increase its market share over the past years. With the new Helio line-up of mobile SoCs, however, MediaTek looks to expand into the high-end segment of the market, where the most profits are to be made.
The first product in the MediaTek Helio series was the Helio X10, a chip that makes use of an octa-core ARM Cortex-A53. More recently, the company announced its fastest chip to date, the Helio X20, a SoC that's said to be 40% faster than the X10 while consuming 40% less power. The CPU is a tri-cluster design that integrates a two ARM Cortex-A72 cores clocked a 2.5GHz, four Cortex-A53 cores clocked at 2GHz, and four additional Cortex-A53 cores clocked at 1.4GHz. The X20 also comes with a Mali-T800 GPU, which is said to be able to seamlessly power QHD displays.
MediaTek announced that Helio X20 sample units will start shipping in the second half of the year, meaning that we should expect to see the chip integrated in smartphones starting with the first quarter of 2016.