OpenPOWER Foundation – Open-Source / Open Hardware PowerPC CPU ISA

by peter_d_shermanon 5/25/2025, 1:33 PMwith 45 comments

by ThinkBeaton 5/27/2025, 10:50 AM

According to Raptor the newest generation of POWER chips contain a big binary proprietary blob.

Would these pose a problem for the this foundation?

by phendrenad2on 5/27/2025, 12:44 PM

So what exactly does OpenPOWER grant me? If I create a CPU core design that implements the same ISA as, say, the PowerPC G5 chip used in Macs from 2002-2012, can I sell it? Or can I open-source it? Or is OpenPOWER incompatible with the PowerPC line?

by jamesy0ungon 5/27/2025, 11:42 AM

What exactly is the selling point of the Power ISA? Why would I want to use it over RISC-V?

by snvzzon 5/28/2025, 1:18 AM

The community behind POWER has long been overtaken by RISC-V.

This can easily be seen reflected in Debian (largest distribution by package collection), where RISC-V has recently overtaken[0] ppc64 as the third largest ISA in available software.

The expectation is that RISC-V will continue to climb and eventually overtake ARM and x86.

RISC-V is inevitable.

0. https://buildd.debian.org/stats/graph-week-big.png

by ladyanita22on 5/27/2025, 11:28 AM

Why the focus on Risc-V when the Power architecture already has high-performance cores? Genuine questions.

by peter_d_shermanon 5/25/2025, 1:38 PM

>"By open sourcing and developing on the POWER ISA - one of the most sophisticated processor architectures available - the OpenPOWER Foundation is democratizing access and extending the reach of the RISC-based architecture.'

Open for All

With more than 350 members collaborating regularly, the entire semiconductor industry - from global organizations with deep expertise to individual creators with a new lens - can innovate with choice and build and develop across the full Hardware and Software stack."

Related:

https://en.wikipedia.org/wiki/Power_ISA

https://en.wikipedia.org/wiki/Power10

https://www.itjungle.com/2024/12/02/power11-takes-memory-ban...