Helio X25 was the fastest deca-core 20nm SoC from MediaTek with three cluster designs and this SoC ended up in quite a few prominent China higher end phones including a few Meizu devices. But it looks like customers wanted a bit faster camera, SoC and GPU performance for its late 2016 early 2017 phones, the ones that will launch before the Helio X30 comes to market.

Jeffrey Ju, Executive Vice President and Co-Chief Operating Officer at MediaTek said: “The MediaTek Helio platform fulfills the diverse needs of device makers. Based on the success of MediaTek Helio X20 and X25, we are introducing the upgraded MediaTek Helio X23 and X27. The new SoCs support premium dual camera photography and provide best in-class performance and power consumption,”

The Helio X25 has two Cortex A73 cores clocked at 2.5 GHz, four Cortex A53 clocked at 2.00 GHz and last four Cortex A53 clocked at 1.55GHz. The Mali GT880 graphics is clocked at 850 MHz.

The Helio X20 has two Cortex A73 cores clocked at 2.1 GHz, four Cortex A53 clocked at 1.85 GHz and last four Cortex A53 clocked at 1.4GHz. The Mali GT880 graphics is clocked at 780 MHz.

The newcomer, Helio X27, has two Cortex A73 cores clocked at 2.6 GHz, four Cortex A53 clocked at 2.00 GHz and the last four Cortex A53 clocked at 1.6 GHz. The Mali GT880 graphics is clocked at 875 MHz. The rest of the specification is identical to the Helio X25.

The Helio X23 has two Cortex A73 cores clocked at 2.3 GHz, four Cortex A53 clocked at 1.85 GHz and the last four Cortex A53 clocked at 1.4GHz. The Mali GT880 graphics is clocked at 780 MHz. As you can see, this is just a slightly faster version of Helio X20 and it sits just below Helio X25 with its specs.

Thanks to MediaTek-engineered advancements in the CPU/GPU heterogeneous computing scheduling algorithm, both products deliver more than a 20 percent overall processing improvement and significant increases in web browsing and application launching speeds. This definitely sounds promising but you should bear in mind that MediaTek had enough time to optimize these designs of the new and updated SoCs.  

Phones based on the Helio X27 and X23 will be available soon.