Qualcomm Snapdragon 415 MSM8929 vs Mediatek Helio A20 MT6761D vs Qualcomm Snapdragon 435

Qualcomm Snapdragon 415 MSM8929

The Qualcomm Snapdragon 415 (8929) is an ARM-based mid-range SoC for tablets and smartphones (mostly Android based). It was announced in February 2015 and integrates eight 64-Bit Cortex-A53 CPU cores (octa-core) that clock with up to 1.4 GHz. Furthermore, there is a Adreno 405 graphics card, a LPDDR3 memory controller (max. 667 MHz, 5.3 GB/s) and wireless radios for WiFi and 4G/LTE included in the chip.

The Cortex-A53 is the successor of the entry level Cortex-A7 CPU cores. The A53 is now capable of 64 Bit (ARMv8-ISA) and adressing more than 4 GB RAM. According to ARM the performance per MHz is a lot better and even surpasses a Cortex-A9 core.

The integrated Adreno 405 is clocked with about 500 MHz and supports DirectX 11.1 incl. hardware Tesselation, OpenGL ES 3.1 and OpenCL 1.2.

The integrated wireless radios support WiFi 802.11ac, Bluetooth 4.1, GPS, 2G, 3G and 4G (LTE Cat.4) standards. Futhermore, the SoC is able to decode 1080p videos in H.265 (encode only in H.264) and cameras with up to 13 MP.

The power consumption of the chip is ranging in the mid range, and therefore it is also suited for smaller smartphones. 

Mediatek Helio A20 MT6761D

The Mediatek Helio A20 MT6761D 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 1.8 GHz. It integrates a PowerVR GE6300 GPU clocked at up to 550 MHz. The integrated memory controller supports LPDDR4x (max. 4 GB at 1200 MHz). Furthermore, a LTE radio with Cat-4 DL (150 Mbps download) and Cat-6 UL (50 Mbps upload) and a 802.11 a/b/g/n/ac Wi-Fi 5 modem is integrated.

Compared to the similar named A22 MT6761, the MT6761D offers lower clocked CPU and GPU cores and a slower LTE modem, but is produced in the modern 12 versus 16nm process.

Qualcomm Snapdragon 435

The Qualcomm Snapdragon 435 (SD435) 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 X9 LTE modem supports Cat. 4 with maximum transfer rates of 300 Mbps (downstream) and 100 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). The main difference to the Snapdragon 430 is the faster LTE modem.