Update : HTC One A9 is launched officially
The real model name got exposed when HTC One A9 showed up on Geekbench. According to geekbench detail, HTC One A9 would feature 64-bit deca-core 2.0 GHz Mediatek Helio X20 (MTK6797) chipset combined with 4GB RAM. It would be running on Android Lollipop 5.1.1 OS.
HTC One A9 Geekbench 3 Benchmark Score
Single-core performance score : 1835
Multi-core Performance score : 5884
HTC One M9+ has Mediatek Helio X10 inside, and falls under high-end smartphone with huge price tag. So HTC One A9 would certainly be more expensive. Along with deca-core chipset, it is expected to feature a 5.5 or 5.2 inches QHD display.
If we talk about the announcement, there are many devices that would arrive with Mediatek Helio X20 SoC, like Elephone P9000, Zopo, Acer Predator 6 and now HTC One A9. However, only Elephone P9000 has the official release date of 20 October, so this could probably be the first smartphone to feature deca-core chipset.
29 September is the big day when HTC would unveil its 2 high-end smartphone, probably HTC One A9 and HTC Butterfly 3.