Mediatek MT6739 vs Mediatek MT8766B vs Mediatek MT6750

Mediatek MT6739

The MediaTek MT6739 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.

Mediatek MT8766B

The Mediatek MT8766B is an entry-level ARM SoC for smartphones and tablets (mainly Android-based) that was introduced in 2020. It integrates four ARM Cortex-A53 cores clocked at up to 2 GHz. and a PowerVR GE6300 GPU. It looks very similar to the older Helio A20 (-200 MHz CPU core clock).

The integrated memory controller supports LPDDR4x. Furthermore, a LTE radio with Cat-4 DL (150 Mbps download) and Cat-5 UL (75 Mbps upload) and a 802.11 a/b/g/n/ac Wi-Fi 5 modem is integrated.

The SoC should be produced in the same 12nm process as the Helio A20 (most likely the same chip).

Mediatek MT6750

The ARM-based Mediatek MT6750 SoC (System on a Chip) is a mid-range mobile processor announced in Q2 2016 for smartphones and tablets (mostly Android based). It integrates 8 ARM Cortex-A53 cores consisting of 4 high-performance cores clocked at up to 1.5 GHz plus 4 low-power cores clocked at up to 1 GHz each. Furthermore, the SoC integrates a Cat. 6 LTE radio and an ARM Mali-T860 MP2 GPU with 802.11n WiFi and Bluetooth connectivity.

The Cortex-A53 is the successor to the Cortex-A7 and introduces 64-Bit support (ARMv8-ISA). Its performance-per-Watt is significantly higher and is even slightly ahead of the old Cortex-A9. If utilizing all 8 of its cores, the Cortex-A53 can rival competing mobile processes in the high-end class range. However, no practical software has been specifically coded to use all 8 cores at such high performance levels.

The integrated GPU is the modern ARM Mali-T860 MP2 (two clusters) clocked at up to 520 MHz. It should be able to run all current Android games.

In addition to the CPU and GPU cores, the SoC also contains a memory controller and the aforementioned Cat.6 LTE modem (FDD/TDD, DC-HSPA+, TD-SCDMA, CDMA2000, EDGE) with both 802.11n WiFi and Bluetooth. The integrated video engine is able to record and playback 1080p videos at up to 30 FPS in hardware. Cameras are supported at up to 16 MP.

The MT6750 is still manufactured in 28nm and so power efficiency is not on par with modern 14/16nm chips.