The MediaTek MT8752 is a ARM based SoC for mostly Android based tablets and smartphones. It integrates 8 small ARM Cortex-A53 cores at up to 1.7 GHz. The integrated graphics card is an ARM Mali-T760MP2 with up to 700 MHz clock speed. Furthermore, an LTE modem and a video de- and encoder are integrated in the chip.
The MediaTek MT6739WW is a 64-bit ARM-based SoC launched in 2017 primarily for small budget Android devices. The quad-core processor is based on the Cortex-A53 architecture and clocks up to 1.5 GHz. It integrates an LTE modem (Cat. 4 DL / Cat 5 UL) and a PowerVR GE8100 at 570 MHz (the predecessors used ARM Mali GPUs). Furthermore, the SoC integrates a 802.11 a/b/g/n Wi-Fi adapter and a video de- and encoder in hardware.
The difference to the normal Mediatek MT6739 (see for more benchmarks) is not known and specs and performance are identical.
The Mediatek Helio P23 MT6763V is a mainstream ARM SoC for smartphones (mainly Android based) that was introduced in 2017. It is manufactured in a 16 nm FinFET+ process and is equipped with 8 ARM Cortex-A53 CPU cores. The cores are divided in two clusters, a performance cluster clocked at up to 2 GHz (versus 2.3 GHz in the official specs for the similar P23 MT6763T) and a power efficiency cluster clocked at up to 1.65 GHz (unverified). The chip also includes an LTE modem (Cat. 7 DL / Cat. 13 UL with Dual-SIM support) and a 802.11a/b/g/n WiFi modem. The integrated ARM Mali-G71 MP2 GPU is clocked at up to 770 MHz and has two cluster (from 32). The integrated memory controller supports DDR4x (Dual-Channel?) at 1500 MHz and LPDDR3 (Single Channel only) at 933 MHz. The video engine supports H.264 de- and encoding but only decoding (playback) of H.265/HEVC.