z Systems have always been amazing engineering feats. Too bad adopting it comes with a gargantuan amount of... IBM.
The Talos II:
https://wiki.raptorcs.com/wiki/Talos_II
> EATX form factor > Two POWER9-compatible CPU sockets accepting 4-/8-/18- or 22-core Sforza CPUs
"Entry" level is $5,800 USD.
There won't be a POWER10 version from them because of proprietary bits required
https://www.talospace.com/2023/10/the-next-raptor-openpower-...
> POWER10, however, contained closed firmware for the off-chip OMI DRAM bridge and on-chip PPE I/O processor, which meant that the principled team at Raptor resolutely said no to building POWER10 workstations, even though they wanted to.
https://www.osnews.com/story/137555/ibm-hints-at-power11-hop...
They aren't cheap and they aren't for everyone. But it meets my needs and it puts my money where my mouth is.
Back in the 90s and early 2000s, there were several non-x86 architectures that were more powerful, and even 64 bit long before Intel ever did. The DEC alpha, SPARC, and others. I was also too poor to afford those back then but I remember them fondly.
At some point I was reading e-mail on a 64-bit SGI machine while we waited for the Dell the company ordered for me to arrive.
The day it came in was one of the saddest days of my life.
The microarch is closed and IBM-specific. However, the ISA is open and royalty-free, and the on-chip firmware is open source and you can build it yourself. In this sense it's at least as open as, say, many RISC-V implementations.
> Verilog RTL for OpenSPARC T2 design
> Verification environment for OpenSPARC T2
> Diagnostics tests for OpenSPARC T2
> Scripts and Sun internal tools needed to simulate the design and to do synthesis of the design
> Open source tools needed to simulate the design
https://www.oracle.com/servers/technologies/opensparc-t2-pag...
You can certainly get Power cores with the VHDL and everything; the most notable of these is Microwatt, and IBM even maintains it. There are also A2O and A2I.
That said, I don't think it's reasonable to expect that a company that put R&D money into designing a high performance chip should give away the store. There has to be some incentive. I'm satisfied that I don't have any unexplained or opaque firmware blobs in my POWER9 chips and the ISA and its internal workings are well-documented. That was good enough for the FSF, and it's good enough for me.
There is a deskside POWER10 machine from IBM, that uses their smaller half-rack server, but it has somewhat limited expansion capabilities.
You may be thinking of IBM i (formerly known as AS/400 and i5), which has a completely abstracted instruction set that on modern systems is internally recompiled to Power.