Stefan Mileschin

Back in September, Arm had announced the new Cortex A76AE CPU with focus on automotive applications. Today, Arm finally formally announces a next gen processor with simultaneous multithreading, the new Cortex A65AE.

The older A76AE CPU was Arm’s first to feature the “split-lock” technology that allowed two CPU cores to operate in a configurable lock-step operation mode, allowing the units to process tasks in parallel to each other and compare results for discrepancies – achieving a required level of functional safety of the software that is run on the system.

The Cortex A76AE was pretty much focused on heavy compute tasks and thus also fully takes advantage of the new high performance that is delivered by Arm’s new microarchitecture that came out of the Austin design centre. During the reveal of the A76AE, there were mentions of a “Helios” CPU core – to date it wasn’t too clear what this was meant to be, but it very much seemed like a new class of core that was meant to accompany the A76AE.

https://www.anandtech.com/show/13727...t-smt-cpu-core