Official AMD Barcelona Thread

[Shadowmage]

I did some digging in the AMD 10h Programmer's Manual and Intel's Programmer Manual.

Barcelona shuffle latency (PSHUFHW): 2 cycles latency
Conroe shuffle latency (PSHUFHW): 2 cycle latency
Penryn shuffle latency: 1 cycle (from super shuffle engine)

Barcelona 128bit division latency (DIV*): 16-20 cycles latency
Yonah 128bit division latency (DIVPD, DIVSD): 63 cycles latency (not a typo!)
Conroe 128bit division latency (DIVPD, DIVSD): 18 cycles latency
Penryn 128bit division latency (DIVPD, DIVSD): ~5 cycles latency (estimated from Radix-16 divider)

Barcelona 128bit square root latency (SQRT*): 21-27 cycles
Yonah 128bit square root latency (SQRT*): 118 cycles (not a typo!)
Conroe 128bit square root latency (SQRT*): 29 cycles
Penryn 128bit square root latency (SQRT*): ~9 cycles latency (estimated from Radix-16 divider)

Conclusion: Shuffle speed improvement for Penryn shouldn't make too big of a difference... 2 cycles latency was already very low. Division/sqrt isn't that common (but is common in F@H) and performance will improve accordingly.

[red]

Do you have numbers for K8 whatever latency since you have Yonah and Conroe numbers?

[Shadowmage]

If someone can find the K8 programming manual, sure.

[Scimitar]

Very interesting, thanks Shadowmage. Wolfdale and Yorkfield should be Distributed Computing monsters.

[nemrod]

For A64 latency perhaps this document could help:
http://www.agner.org/optimize/instruction_tables.pdf

[OBR]

AMD Phenoms will introduce to the market this Monday - 14th, with HD2xxx cards!

[berk]

Kudos to Shadowmage..now thats good work

[LowRun]

AMD Phenoms will introduce to the market this Monday - 14th, with HD2xxx cards!

Are you sure AMD heard about that

[XeRo]

AMD Phenoms will introduce to the market this Monday - 14th, with HD2xxx cards!

I'm pretty sure it will just be an announcement saying "Our next-gen Processor will be called Phenom...."

[OBR]

Yes i´ve seen... i have some slides under NDA ... and this NDA ends 14th ...

[Lightman]

Guys I have conspiracy theory in addition to what (BTW well informed) OBR said.

Anyone with interest in F1 racing knows that tomorrow in Barcelona/Spain is next event...
By accident code name of new architecture form AMD is Barcelona!
If I would be AMD then guess what date I would choose for releasing first benchmarks to the public???
Kombatant(working for AMD as sort of PR/adviser) was hinting several times on Beyond3D forum that on 14th of May we will get very nice surprise besides R600XT... (it wont be RV630 coz, as rumor is saying, it's delayed).
On several older roadmaps Barcelona was slated for 1H launch.
Working quads was demonstrated in Monterey, California on 9th of May (AgenaFX with non-registered DDR2 DIMMS 1 socket and 2 sockets configs)


THE END!!
if it's true ...

PS. I found original words from Kombatant:

Originally Posted by Kombatant View Post
How's this: a decision was made regarding the R600 release, that will be a very pleasant surprise to many people.
Interesting/funny/controversial/stupid enough?

[informal]

Tnx Lightman

[LowRun]

Guys I have conspiracy theory in addition to what (BTW well informed) OBR said.

Anyone with interest in F1 racing knows that tomorrow in Barcelona/Spain is next event...
By accident code name of new architecture form AMD is Barcelona!
If I would be AMD then guess what date I would choose for releasing first benchmarks to the public???
Kombatant(working for AMD as sort of PR/adviser) was hinting several times on Beyond3D forum that on 14th of May we will get very nice surprise besides R600XT... (it wont be RV630 coz, as rumor is saying, it's delayed).
On several older roadmaps Barcelona was slated for 1H launch.
Working quads was demonstrated in Monterey, California on 9th of May (AgenaFX with non-registered DDR2 DIMMS 1 socket and 2 sockets configs)


THE END!!
if it's true ...

PS. I found original words from Kombatant:

Now could you make the "Get all 3" concept fit into your conspiration theory please

[|3ourne]

Guys I have conspiracy theory in addition to what (BTW well informed) OBR said.

Anyone with interest in F1 racing knows that tomorrow in Barcelona/Spain is next event...
By accident code name of new architecture form AMD is Barcelona!
If I would be AMD then guess what date I would choose for releasing first benchmarks to the public???
Kombatant(working for AMD as sort of PR/adviser) was hinting several times on Beyond3D forum that on 14th of May we will get very nice surprise besides R600XT... (it wont be RV630 coz, as rumor is saying, it's delayed).
On several older roadmaps Barcelona was slated for 1H launch.
Working quads was demonstrated in Monterey, California on 9th of May (AgenaFX with non-registered DDR2 DIMMS 1 socket and 2 sockets configs)


THE END!!
if it's true ...

PS. I found original words from Kombatant:

Not to mention Fellipe Massa won for Ferrari whom AMD sponsors BIG TIME !!! Now for that surprise

[madcho]

nice

[Cooper]

14th is NDA lifting date. Products launch is still in 2H

[red]

Full review launch or just preview ala Conroe?

[Shintai]

The 14th is x2900 series card. No K10 anywhere. Not sure how people mixed it in with it. K10 is something there will be in summer/after summer.

[madcho]

NDA on K10 finish on 14.

[red]

Sweet. So how about availability? They've been flip flopping on that a lot, summer, Christmas..

[Shintai]

NDA on K10 finish on 14.

Well, then we should see it tomorrow....or not.

[nemrod]

NDA on K10 finish on 14.

Are you sure? according to anandtech article (11 may)
http://www.anandtech.com/cpuchipsets...oc.aspx?i=2986
"Barcelona Demos and Motherboards

Much to our dismay and definitely against our recommendations, AMD will not follow in Intel's footsteps and let us do a performance preview of Agena or Barcelona. In fact, AMD wouldn't even let us know what clock speeds its demo systems were running at. While we cautioned AMD that a lack of information disclosure at this point would only reinforce this idea that AMD is lagging far behind Intel, AMD's counterpoint does have some validity. AMD's reasoning for not disclosing more information today has to do with not wanting to show all of its cards up front, and to give Intel the opportunity to react. We still don't believe it's the right decision, and we can't help but believe that the reason for not disclosing performance today is because performance isn't where it needs to be, but only AMD knows for sure at this point."

So if even anandtech which was invited to the 10 may demo hasn't had the right to bench, it's curious that nda ends 14?

[madcho]

NDA finish the 14, but don't dream to see Barcelona on stock

a french web site :

Officialisés dès lundi, ces nouveaux bébés devraient être en démonstration intensive lors du prochain Computex, mais ne seront pas disponible dans leur version grand public avant l'été voire la rentrée, pour les modèles Quad Core.

translate by google ( seems good )

Officialized as of Monday, these new babies should be in intensive demonstration at the time of next Computex, but will not be available in their version general public before the summer even the re-entry, for the models Quad Core.

[red]

Is it going to be hardware review site reviews or a bunch of amd.com marketing baloney?

[nemrod]

NDA finish the 14, but don't dream to see Barcelona on stock

It's not the problem...
NDA: non disclosure agreement... Why a NDA, if nobody has info? Why anandtech (and every others sites) says they can't bench the 10 may? Do you really think that people who were invited by amd the 10 may, will not be some of the first to have the infos? (except amd staff)

Perhaps there is a 14 may NDA for some kind of amd product (R600, I guess, since board are around) but Barcelona? We will see, but i would be surprised if you're information is true (barcelona nda 14 may)