Qualcomm Snapdragon 430 (MSM8937) vs Mediatek Helio P10 MT6755 vs Qualcomm Snapdragon 626

Qualcomm Snapdragon 430 (MSM8937)

The Qualcomm Snapdragon 430 (SD430) is a lower mainstream SoC for (Android based) smartphones and tablets. Contrary to the Snapdragon 630, it is still manufactured in a 28-nm process and also consists of an octa-core CPU part with ARM Cortex-A53 cores. However, they are only clocked at up to 1.4 GHz. The integrated X6 LTE modem supports Cat. 4 with maximum transfer rates of 150 Mbps (downstream) and 75 Mbps (upstream). The SoC also includes an Adreno 505 GPU with support for Vulkan and OpenGL ES 3.1. WiFi 802.11ac and Bluetooth 4.1 are supported as well. The memory controller supports LPDDR3 clocked at 800 MHz (so probably dual-channel DDRL-1600). 

Mediatek Helio P10 MT6755

The Mediatek Helio P10 MT6755 is a mid-range ARM SoC for smartphones and tablets that was available starting in Q3 2015. The octa-core processor includes eight 64 Bit Cortex-A53 cores clocked with up to 2 GHz. Furthermore a ARM Mali-T860 MP2 graphics card with up to 700 MHz and a LTE Cat. 6 modem is integrated.

The performance of the CPU cores si similar to the Kirin 930 and therefore in the mid-range of smartphone SoCs in 2015 and 2016.

The SoC is manufactured at TSMC in 28nm (HPC+) and also suited for smartphones (e.g. the Elephone P9000).

Qualcomm Snapdragon 626

The Qualcomm Snapdragon 626 (SD626) is a mid-range octa-core SoC with eight ARM Cortex-A53 cpu cores at up to 2.2 GHz, an Adreno 506 GPU, a DDR3L-1866 memory controller and a X9 LTE (Cat 7, 4G+, 300 Mbps down, 150 Mbps up) modem. Furthermore, the chip supports 802.11ac WiFi and Bluetooth 4.1. It is manufactured in 14nm FinFet. The processor performance should be a bit higher than the average Snapdragon 625, due to the 200 MHz higher maximum clock speed.