Mediatek Helio A25 vs Mediatek MT6739 vs Mediatek MT6750S

Mediatek Helio A25

The Mediatek Helio A25 is an entry level ARM SoC for smartphones (mainly Android based) that was introduced in early 2020. It is manufactured in a 12 nm FinFET process and is equipped with 8 ARM Cortex-A53 CPU cores divided in two clusters. A performance cluster with 4 cores clocked at up to 1.8 GHz and a efficiency cluster clocked at up to 1.5 GHz.

Furthermore, the SoC integrates a LTE Cat.4 modem, a LPDDR3-933 / LPDDR4-1200 / LPDDR4x-1600 memory controller, a IMG PowerVR GE8320 graphics card and a 1080p30 video de- and encoder (H.265 decoding, H.264 encoding).

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 MT6750S

The ARM-based Mediatek MT6750N SoC (System on a Chip) is a mid-range mobile processor 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. Compared to the older MT6750, the graphics card seems to be clocked higher.

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.

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.