Here it is:

http://hardware.slashdot.org/story/10/02/09/0053248/IBM-Releases-Power7-Processor?art_pos=7



nexus

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@nexus

I don't even want to guess how much that thing will cost....ouch.

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@HammerD

Quote:

HammerD wrote: @nexus I don't even want to guess how much that thing will cost....ouch.

1000$ maybe?

That would be awesome :)

@Ancalimon

A lot lot lot more than that. You can get high end x86s that cost $1000, this is a *very* high end server processor.

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@nexus

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@nexus : Try again ! Power7 is a killer but it has a cost and its usage is reserved to expensive servers, even if the power and efficiency are in.

@nexus

Hmm

That aside, Trevor did say that the clock speed would/could be significantly higher than the 1.5ghz seen in one of the previously discovered riddle pictures (if I remember rightly).

Who knows what it may be!

Steve

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@nexus

Sorry, it's not a dual core.......

@x303

I have said it before and I will say it again. Power6!
It is dual core, significantly faster than 1.5ghz (up to 4.7ghz iirc).
It is rarely seen in the wild.
It is 2.4 compliant.

Given power7s arrival, power6 price will drop.

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I'm sure it's not power6 or power7.
But it can be a product of the big blue, though.

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@ddni

I was replying to power7, not 6 !!!
And 7 has 4, 6 or 8 cores, not 2, so....
But we'll see what the future brings us.

x303

@nexus

thats awesome news to know a Power7 has been made

Also

Even if we only get a dual core, it is awesome power with an OS of our magnitude.

Not to mention the expansion capability, probably have different expansion boards available, ones for home users, and ones for companies that actually need the 256 additional cores perhaps/

Cheers

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@x303

Quote:

Sorry, it's not a dual core.......

I also doubt Power7 is 20 watts.

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@ddni
>I have said it before and I will say it again. Power6!
>It is dual core, significantly faster than 1.5ghz (up to 4.7ghz iirc).

Power6 is not possible, because need too much power.there can read that Power6 need around 100 Watt at 3 GHZ.

ALso the CPu cost more than 2000$, and a Chipset and RAM for that i guess 1000$ more.

Power 6 is is extrem slow /MHZ, because its simple in Order design.So you need high clockrates and good optimizing compilers.

That Power6 is fast happen only when there are more CPU add on the same board.

Here help the Big Cache of Power6.
But for a single CPU board the Power6 is totally overpriced and slow.

But in benchmarks with upto 8 threads a 20* cheaper X86 outperform a Power6 a lot.

See here some links.but you can also look direct in specfp and specint values at their main Page

single thread float

http://www.computerwoche.de/_misc/img/detail800.cfm?pk=379881&fk=2016541&id=d2e852-media

single thread integer

http://www.computerwoche.de/_misc/img/detail800.cfm?pk=379874&fk=2016541&id=d2e646-media

here can see that the 4,7 GHZ Power6 run only so fast as a Opteron 2,7 GHZ.

Last edited by bernd_afa on 12-Feb-2010 at 04:12 PM.

@bernd_afa

Quote:

But in benchmarks with upto 8 threads a 20* cheaper X86 outperform a Power6 a lot.

a lot?

Power6 4.7 GHz, 4 cores:
122 SPECint_rate2006
115 SPECfp_rate2006

Power6 4.7 GHz, 8 cores:
240 SPECint_rate2006
213 SPECfp_rate2006

Core i7-965 Extreme Edition, 4 cores (2 threads/core):
135 SPECint_rate2006
102 SPECfp_rate2006


For comparison Core 2 Quad Q6700 2666 MHz, 4 cores:
58.2 SPECint_rate2006
40.8 SPECfp_rate2006

Source: www.spec.org

Last edited by pavlor on 12-Feb-2010 at 04:31 PM.

@pavlor

Can you post direct links to the values you post ?

maybe you mix something.

The Power6 is a CPU that have 2 cores and have something as Hyperthreading.So you can run on that 4 threads faster as 2 threads.So its same as a Opteron Quad System and can run 4 threads.

Because Power6 is in order design the hyperthreading can give a big speed boost.more as X86 with the better out of order execution

And to compare the value exact you need look at the specfp Bench with same thread numbers

I forget the link to whole compare

http://www.computerwoche.de/hardware/data-center-server/2016541/index14.html

Here is a link to two socket system(mean that there are 2 CPU on 1 board).This mean there run 8 threads. I usew float (on Integer Opteron is more faster as Power6)

http://www.computerwoche.de/_misc/img/detail800.cfm?pk=379877&fk=2016541&id=d2e1672-media

The AMD Opteron at 2,7 GHZ reach same speed as the Power6 at 4,7 GHZ.The I7 is lots faster, but the I7 have 4 cores and Hyperthreading so mean 8 threads /CPU are possible.

Its not direct comparable.but anyway for much lower price you can get 8 cores with the I7-

On 4 CPU System(run then 16 threads) the Power6 with 4.7 GHZ is same fast as the 2,9 GHZ Opteron

http://www.computerwoche.de/_misc/img/detail800.cfm?pk=379878&fk=2016541&id=d2e2083-media

Here are 8 CPU Systems (run 32 threads)

i find only integer benchmarks.

http://www.computerwoche.de/_misc/img/detail800.cfm?pk=379872&fk=2016541&id=d2e2291-media

but here can see, Power6 is lots faster, the reason is X86 have not so large caches as the Power6 and the 8 CPU Cores are too much for the memory System.

But all in all the Power6 is a lame CPU and when there is a X86 build that have same Cache size and interconnect feature as power 6, PPC have also on more CPU systems no Chance.

only luck is that Intel or somebody else do not add the features in X86 so PPC can maybe survive in 8 CPU or more on a single board.

read here what the power 6 offer and when there are more than 4 CPU on 1 board this speed the power6 up more and more.

"""
http://en.wikipedia.org/wiki/POWER6

Each core has semi-private 4 MiB unified L2 cache, where the cache is assigned a specific core, but the other has a fast access to it. The two cores share a 32 MiB L3 cache which is off die, using an 80 GB/s bus.[8]

POWER6 can connect to up to 31 other processors using two inter node links (50 GB/s), and supports up to 10 logical partitions per core (up to a limit of 254 per system). There is an interface to a service processor that monitors and adjusts performance and power according to set parameters.[9]
"""

But build a Board that have only 1 or 2 Power6 is slow and cost lots money

Last edited by bernd_afa on 13-Feb-2010 at 06:21 PM.
Last edited by bernd_afa on 13-Feb-2010 at 06:20 PM.
Last edited by bernd_afa on 13-Feb-2010 at 06:18 PM.

@bernd_afa

(too much work...)

Power6 4.7 GHz, 4 cores, SpecInt_rate2006
Power6 4.7 GHz, 8 cores, SpecInt_rate2006

Power6 4.7 GHz, 4 cores, SpecFp_rate2006

etc. (find it yourself, there is search feature on the SPEC page...)

However, you talked about common CPUs ("But in benchmarks with upto 8 threads a 20* cheaper X86 outperform a Power6 a lot"), I gave comparison to the top Intel desktop CPU (Core i7). Power6 is as fast or faster, thus your original argument is not valid.

@pavlor
""""
http://www.spec.org/cpu2006/results/res2007q2/cpu2006-20070518-01100.txt
Base Base Base Peak Peak Peak
Benchmarks Copies Run Time Rate Copies Run Time Rate
-------------- ------ --------- --------- ------ --------- ---------
400.perlbench 8 .........
""""

There stand a value of 8 under base copies.this mean there run 8 threads and this value with Power6 at 4,7 GHZ.

SPECint(R)_rate_base2006 106
SPECint_rate2006 122

Now you must look in a X86 if you find a solution that have too 8 Base copies.

Here is a AMD System that give simular speed with 2 CPU
It run only with 2,7 GHZ

"""
http://www.spec.org/cpu2006/results/res2008q4/cpu2006-20081208-06241.txt
Dell Inc. PowerEdge 2970 (AMD Opteron 2384, 2.70 GHz)
SPECint(R)_rate_base2006 112
SPECint_rate2006 134

"""

http://www.spec.org/cpu2006/results/res2009q3/cpu2006-20090825-08437.html

I find this older Intel Xeon 5504 System that have too 8 Cores and use 2 CPU and is with only 2 GHZ faster as Power6 with 4,7 GHZ

It reach
SPECint(R)_rate_base2006 126
SPECint_rate2006 135

this are the values you post of Power6 4 CPU System

""""

http://www.spec.org/cpu2006/results/res2007q2/cpu2006-20070518-01103.txt

SPECint(R)_rate_base2006 206
SPECint_rate2006 240
"""

The 4 CPU System in 1 motherboard values you listet use 16 Base copies.So you need look on X86 too whats here with 16 Base copies


The Opteron with 2,7 GHZ reach the speed of the Power6 at 4,7 GHZ

This System use 4 Quad Opteron with 2,7 GHZ and use Base Copy of 16 too and is faster
You can see it havel much fewer caches as the Power6 but its faster.

there are also faster Opteron Systems here, that are clocked with 3,1 GHZ

"""
http://www.spec.org/cpu2006/results/res2009q2/cpu2006-20090511-07418.txt

SPECint(R)_rate_base2006 228
SPECint_rate2006 273
""""

Last edited by bernd_afa on 14-Feb-2010 at 02:09 PM.

@bernd_afa

I don’t expect any of the CPU’s your debating her to find their way in to my computer in a year or two.

Last edited by NutsAboutAmiga on 14-Feb-2010 at 03:18 PM.

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