Design company Arm shows us where mobile processors are headed, expects 5nm chips in 2020

Later this year, Arm says it will deliver the next generation of the A76, currently code-named “Deimos”, to its clients. Because Arm isn’t producing hardware itself, this means that manufacturers, such as Qualcomm, will receive the design of the chip this year, so product integration will be delayed by a few months. This will be the first chip designed entirely for 7nm and according to Arm’s plans will be succeeded by the “Hercules” chip in the summer of 2019. Like the Cortex-A76, Hercules is expected to have two variations, a 7nm and a 5 nm one. The 5nm is currently projected in the middle of 2020.

What this means for users, is that in the next few years mobile chips are expected to become more powerful, obviously, but more importantly, a lot more power efficient. Smaller chips require less electricity and produce less heat, which allows them to work on higher frequencies. According to Arm, its 7nm Cortex-A76 will be able to boost past 3GHz.

However, Arm’s timeline might be a bit too optimistic. Designing smaller and smaller chips is one thing, but mass producing them is a whole other beast. The complexity of the manufacturing process grows exponentially with the reduction in size. Even with 10nm chips, some semiconductor foundries have been struggling to produce enough usable silicon. For the 5nm generation, they will rely on completely new production methods, that are yet to be tested for large scale manufacturing.

We have the map, now the burden falls on the shoulders of chip makers to follow it.