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Arm Cortex-A78C Core Announced for Laptops

posted by Fnord666 on Wednesday November 04 2020, @06:03PM   Printer-friendly

takyon writes:

Arm Cortex-A78C core supports up to 8 cores per cluster, 8MB L3 cache for always-on laptops

Arm Cortex-A78 CPU core was first introduced in May 2020 with a focus on mobile devices like smartphones and was followed by Cortex-A78AE for automotive and industrial embedded applications in September.

The company has now introduced a new variant with Arm Cortex-A78C supporting up to eight cores per cluster, a larger cache up to 8MB for higher performance, and advanced security features all designed for always-on laptops and other "on-the-go" devices.

[...] All those improvements will provide increased performance in laptops, likely at the cost of higher power consumption, but considering Arm laptop often get over 20 hours of battery life, it may be a worthwhile compromise to lose a couple of hours of battery life for higher performance.

This is being seen as a reaction to Apple's custom ARM SoCs for Macs, which are expected to be announced within a week. A successor to the Qualcomm Snapdragon 8cx could use 8 "big" cores.

Also at Wccftech.

Previously: ARM Announces Cortex-A78 and Cortex-X1

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  • (Score: 2) by TheRaven on Monday November 09 2020, @10:19AM

    by TheRaven (270) on Monday November 09 2020, @10:19AM (#1075081) Journal
    Oh, one more thing: the Arm partnership agreement is a broad patent cross-licensing agreement that covers patents held by any of the members, for the purpose of implementing Arm ISAs. Anything Samsung, Qualcomm, nVidia, or whoever has developed that is covered under that agreement is available for Apple to use in Arm cores, but it would not be available for implementing other cores. This also gives some good defensive cover against Intel. I don't know if there's a cross-licensing deal formally between the Arm partnership and Intel, but if not then I am reasonably confident that Intel is almost certainly violating at least one patent held by the Arm ecosystem and so would kick off a load of counter-suits if they tried to sue anyone for implementing Arm. If they did the same against an Apple ISA then none of the defensive patents would apply and Apple would have to find some Apple-owned patents that Intel infringed (much harder).
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