Post by l'indienPost by Timothy J. BogartPost by l'indienPost by Timothy J. BogartPost by l'indienPost by storkNow that Apple is bowing down to Intel, does anyone have any plans to
make a Power PC 970MP Mobo?
they sell server with PowerPC 970 inside.
What machines does IBM presently sell with PowerPC. Last I looked,
after the 43p-150, everything was Power.
In fact, POWER is just a commercial name for high-end PowerPC.
<http://www-03.ibm.com/servers/eserver/bladecenter/js20/more_info.html>
No. POWER is POWER and PPC is PPC.
Take a closer look to POWER specifications, please.
POWER was and original architecture from IBM, used in the early RS/6000.
They extended it with POWER2.
Then, IBM, Motorola and Apple developped the PowerPC specification, based
on IBM work on POWER. The first PowerPC, (PPC601) was fully POWER
compatible.
From this point, IBM developped 4 lines of products have been developped
- 32 bits embedded PowerPC: was 401, then 403 & 405.
- 32 bits generic PowerPC, as 603, 604, 750, ...
- 64 bits RS/64 PowerPC
- 64 bits POWER.
The two last ones are extended PowerPC. They follow the whole 64 bits
PowerPC specification. RS/64 adds tagged memory access and was mostly used
in AS/400 line of products. POWER3 & POWER4 were most designed for
mainframes, with multicore and hypervisor features.
Nowadays, PowerPC 970 & POWER5 use the same core unit. But POWER5 is
multicore and PPC970 has hypervisor feature disabled (though all
needed registers are still present).
And IBM uses POWER name for _all_ their PowerPC based products.
OK, I may have missed something here - you are claiming that the
instructions dropped by the PowerPC after the 601 have now been dropped
in POWER? That would be news to me ... common-mode is not needed any
more? It would be news to me if the POWER included the graphics related
functions (I read them as MMX like stuff that Apple wanted) - I can't
find the article right off, but IIRC it was related only to the PowerPC.
I would have to look up the history of 64 bit PowerPC, because PPC
disappeared from the IBM machine line up. At one point, the most
powerfull box RS6K was PPC based - the J50. Yet, the first 64 bit
machines, and all RS6k/Pseries boxes since, don't use PPC. They use POWER.
Here is what IBM told me over the years - they were going to get speed
and performance improvments going to smaller packaging. All there boxes
headed in that direction. Ooops. POWER came back to the forefront
because they could put the servers line back into a performance range
that was competative and PowerPC could not.
Post by l'indienThe difference between POWER & PowerPC is quite the same than between
Athlon XP & Athlon64.
That is quite a stretch. Let's see, if the Athlon 64 spec was developed
not by AMD, but by a consortium which included other vendors, and then
broke backwards compatability ..... And that of course completely
ignores the real point - these are two different microprossors and the
POWER vs PowerPC are completely different packaging animals ...
Post by l'indienPost by Timothy J. BogartBlades are a different animal. None
of the Low, Mid, or High end servers use PPC. Blade is a category all
in itself. You can get blade servers with Intel in them - but note you
can't get Pseries boxes with Intel in them either.
I was talking about one model of the IBM eServer Blade Center.
I said "JS-20 blade is 970 based". I never said _all_ blades are Power
based.
Please try to read before arguing...
"In fact, POWER is just a commercial name for high-end PowerPC."
In fact, PowerPC is just a commercial name for a low end POWER. It has
failed in it's orginal intent. How long it will remain alive is a good
question. I am sure IBM will milk what it can out of it's investment,
but for the original poster - good luck finding MBs so folks can build
'clone' systems as was done with the G5 stuff. IBM no longer used it in
their main product line, and with Apple dropping it, who is going to
build then next MB we could put in a desktop? Embedded and specialty
devices like the blade server seems to be the only life left in it.
It's a pity, really, but there it is.