Apple A10X Fusion vs Apple A9X

Apple A10X Fusion

The Apple A10X Fusion is a system on a chip (SoC) from Apple that is built into the 2017 iPad Pro models. It integrates six 64 Bit cores that are divided in two clusters. Three high performance cores are clocked at up to 2.39 GHz. The three power saving cores are used for non demanding tasks. It looks like only one of both clusters is able to run at a time (therefore the apps see only three cores). The principle is similar to the first generation of ARMs big.LITTLE concept.

The performance of the SoC is positioned in the high and and clearly faster than all previous Apple SoCs. Even compared to Android high-end SoCs like the Snapdragon 835, the A10X takes the lead (e.g. in Geekbench or Antutu).

The integrated graphics card of the SoC will most likely stem from PowerVR (again) and features 12 cores instead of 6 in the A10 SoC.

According to TechInsights, the A10X is manufactured in the brand new 10 nm FinFet process at TSMC. Altough it offers more function blocks, the A10X is with measured 96.4 mm2 significantly smaller than the previous A9X (143.9 mm2).

Apple A9X

The Apple A9X is a high-end ARM SoC (System on a Chip) that was announced in September 2015 in the iPad Pro. Technical details are scarce, what we know is that it is based on the third generation of Apples 64 Bit architecture (Cyclone 3) and manufactured with a "new transistor technology" (14 or 16nm FINFet probably).

The performance of the A9X did improve a lot according to Apple. The CPU part should be 1.8x faster and the GPU part even 2x faster than the already speedy Apple A8X. Apple even stated in the keynote of the iPad Pro that the performance should be "faster than 80% of portable PCs shipped in the last 12 month". Furthermore the iPad Pro now features a 2x higher memory bandwidth (DDR4?) and 2x faster storage performance. The integrated graphics card will most likely be a PowerVR design again (Power VR Series7?).