Ask AMD about BD?

Page 2 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.
Aug 11, 2008
10,451
642
126
Then you look at the power consumption.

Desktop or server, IPC is still down.

That is why I dont understand why everyone says Bulldozer will be such a great server chip. I admit I dont know much about servers, but isnt power consumption of paramount importance in the server area?
Still dont see how a chip with such low IPC and high power consumption can be that great for servers either. Couldnt Intel just put more cores like AMD does, except each core is more efficient?
 

Idontcare

Elite Member
Oct 10, 1999
21,110
59
91
That is why I dont understand why everyone says Bulldozer will be such a great server chip. I admit I dont know much about servers, but isnt power consumption of paramount importance in the server area?
Still dont see how a chip with such low IPC and high power consumption can be that great for servers either. Couldnt Intel just put more cores like AMD does, except each core is more efficient?

I think people are saying that because its easy to be generous and the server benches are (curiously) not out yet to refute AMD's claims that it goes to 11.

But after seeing the results for desktop apps, I don't see how this thing really is going to beat as 12C magny-cours at much, let alone a westmere-EX.

But that's where price comes in, I suppose. It doesn't need to be a top performer, just has to be priced right.
 

SickBeast

Lifer
Jul 21, 2000
14,377
19
81
Bulldozer will be a viable CPU for certain types of servers will a specific workload.

If they can fix Bulldozer with a really serious re-spin, I will be impressed. I'm sure that they have people that can handle it. Bulldozer at 5ghz with good power consumption would be a force to be reckoned with, particularly with diverse integer heavy workloads.

I liked AMD's CPUs a lot better before they started marketing them. Good products sell themselves.
 
Last edited:

EightySix Four

Diamond Member
Jul 17, 2004
5,122
52
91
Nope. I'm also waiting to see some SPEC benchmarks but still nada. :hmm:

The speculation that Bulldozer will be a better server part without any testing is driving me nuts. It's not like you have to have an Opteron to see how it scales with SQL queries and such.
 

Vesku

Diamond Member
Aug 25, 2005
3,743
28
86
It's PostgreSQL results from Phoronix seem just OK. But I would think RAM and HDD have a decent impact on database benches and Phoronix doesn't have a similar magny cours system to compare, that I could find.
 

Arkaign

Lifer
Oct 27, 2006
20,736
1,377
126
Could BD be fixed by doubling (or halving) the cache that's so prone to contention issues, and making it unshared from then on?
 

toolbag

Member
Dec 25, 2010
69
0
0
Do you think the name "Bulldozer " has mislead people into thinking that it should be able to push other cpu chips to the wayside? Like them big yeller bulldozers pushing dirt and all dat dare stuff.
 

SickBeast

Lifer
Jul 21, 2000
14,377
19
81
The speculation that Bulldozer will be a better server part without any testing is driving me nuts. It's not like you have to have an Opteron to see how it scales with SQL queries and such.
It's not speculation. Bulldozer does well with highly parallel code and can hang with an i7 2600K, albeit while consuming a good 100 watts more to do the same thing.
 

EightySix Four

Diamond Member
Jul 17, 2004
5,122
52
91
It's not speculation. Bulldozer does well with highly parallel code and can hang with an i7 2600K, albeit while consuming a good 100 watts more to do the same thing.

In a number of situations the Phenom X6 outperformed BD in highly parallel code, which is why I want to specifically see server tests.
 

Natfly

Junior Member
May 27, 2006
8
0
0
yeah he's called JFAMD

im sorry we dont need an "offical" thread.
JFAMD will tell us what he can, and what he can't he wont.

As long as people dont bait him and call him names, he's usually very helpful in answering AMD questions.

He's a marketer, not an engineer, not a technical guy. He repeats what the engineers and higher up marketers tell him. "IPC Increases," "50% performance increase" over Magny-cours, "35% performance increase" over Magny-cours. "It's better to have threads run on the same module and for BD to turbo." Honestly, what questions has he answered that are correct? So far none of these have been correct. "All benchmarks are not representative" even though obrovsky and many other pre-released benchmarks had it dead on. He stated the only accurate benchmarks would be from AMD, and honestly, those are the second to last benchmarks I would trust, slightly above Intel's benches of AMD products.

It's funny how his sig says all of his statements are his own, but every single one of them is towing the AMD line.
 

bradley

Diamond Member
Jan 9, 2000
3,671
2
81
Some really good questions being asked over at Hardforums, makes this forum look a little bad.
 

MisterMac

Senior member
Sep 16, 2011
777
0
0
I'm extremely excited about the 6200 BD Opterons.

I have some highly threaded but not very demanding work on a server to be done.


With all the hypertransport bus' enabled, cache latency shouldn't be such an issue on server type workload - atleast from my understanding.

Therefor at the right price, a 16 thread monster would be extremely welcomed - Very few people can afford servers with Nehalem EX or Westmere EX, since they're usually very dense and for 4 socket systems with a extreme price premium.

Keep it under 1k, keep it under 1k AMD! PLEASE!


What would be interesting would be a 8 core interlagos benched vs the FX 8150.
 

Keysplayr

Elite Member
Jan 16, 2003
21,209
50
91
Some really good questions being asked over at Hardforums, makes this forum look a little bad.

What is really going to make or break that effort, is if the questions will be answered honestly, or danced around like a politician around Zucotti Park. (Occupy Wall Street).
 
Last edited:

zlejedi

Senior member
Mar 23, 2009
303
0
0
What is really going to make or break that effort, is if the question will be answered honestly, or danced around like a politician around Zucotti Park. (Occupy Wall Street).

I wouldn't hope too much. Telling truth to most of them could collapse sales of BD products.
 

Idontcare

Elite Member
Oct 10, 1999
21,110
59
91
He's a marketer, not an engineer, not a technical guy. He repeats what the engineers and higher up marketers tell him. "IPC Increases," "50% performance increase" over Magny-cours, "35% performance increase" over Magny-cours. "It's better to have threads run on the same module and for BD to turbo." Honestly, what questions has he answered that are correct? So far none of these have been correct. "All benchmarks are not representative" even though obrovsky and many other pre-released benchmarks had it dead on. He stated the only accurate benchmarks would be from AMD, and honestly, those are the second to last benchmarks I would trust, slightly above Intel's benches of AMD products.

It's funny how his sig says all of his statements are his own, but every single one of them is towing the AMD line.

I enjoyed reading this. Very well said :thumbsup:
 

carnage10

Member
Feb 26, 2010
38
0
0
I'd ask "How tight did your bumholes pucker up when you guys read the SB reviews over at AMD HQ?"

In seriousness no question asked is going to get a 100% straight answer, it is PR after all and no ones gunna stand up and see "look we F'd up ok? We'll try and do better next time"

I'd like to know at what stage and how much money was invested in the development cycle before they realized BD wouldn't perform up to expectations and just settled for raising the clocks, cutting their losses and releasing.

And if they now regret bringing back the "FX" brand for a such a sub-par CPU.
 

Tanclearas

Senior member
May 10, 2002
345
0
71
Interesting, pretty much every question is "when are you planning to release a good version of BD?"

My question would be:
"Why didn't you die-shrink Phenom when you realized BD 1.0 was a disaster?"

Imagine a die-shrunk 1090T BE using much less power, and costing enough less to make that it could be sold profitably for $99.

This.

I was thinking something similar. There were improvements made to the Phenom II/Athlon II core with Llano.

http://www.anandtech.com/bench/Product/399?vs=122

Taking out the two Sysmark results that are "wonky" (one is extremely in favour of the old core while another is extremely in favour of the new core), Llano sees pretty good improvements across the board.

A six-core Thuban at 45nm is 346mm^2. With perfect scaling, 32nm should have made that roughly 175mm^2. Even without perfect scaling, it just seems like AMD could have made a true 8-core CPU, with the IPC increase realized by Llano, added a couple of features that made it into BD (like AES), and still made it under 250mm^2.
 

Idontcare

Elite Member
Oct 10, 1999
21,110
59
91
A six-core Thuban at 45nm is 346mm^2. With perfect scaling, 32nm should have made that roughly 175mm^2. Even without perfect scaling, it just seems like AMD could have made a true 8-core CPU, with the IPC increase realized by Llano, added a couple of features that made it into BD (like AES), and still made it under 250mm^2.

2 Llano cores, complete with 2MB L2$, are nearly identical in size to one BD module (also with 2MB L2$).

So, keeping everything that is uncore about Zambezi (power gating logic, L3$, etc), in theory they could have made an 8-core llano architecture zambezi that would have been the same die-size as the existing 8core BD.

What we don't know is how well it would have clocked, or how its power consumption would have turned out, considering where the A8's are clocking now and their power usage as mere quads.
 

Tanclearas

Senior member
May 10, 2002
345
0
71
2 Llano cores, complete with 2MB L2$, are nearly identical in size to one BD module (also with 2MB L2$).

So, keeping everything that is uncore about Zambezi (power gating logic, L3$, etc), in theory they could have made an 8-core llano architecture zambezi that would have been the same die-size as the existing 8core BD.

What we don't know is how well it would have clocked, or how its power consumption would have turned out, considering where the A8's are clocking now and their power usage as mere quads.

A8's power usage as "mere quads" isn't entirely accurate. They are quads with integrated GPU.

A four-core Llano, with GPU, is 228mm^2. Take away the GPU, PCIe connections, display connections, and UVD, and the size is reduced by slightly more than half. Add in the additional cores, some L3 cache, and you might end up where BD is, but you'd have 8 actual cores that don't have to share a bunch of resources, all with higher IPC so not needing the high clocks that BD does just to break even.

All speculation of course.
 
Last edited:

SickBeast

Lifer
Jul 21, 2000
14,377
19
81
Its all well and good keeping up with a 4C/8T chip in MT apps, but at what expense? 2 billion transistors and a massive power draw as you stated. What happens early next year when Ivy Bridge comes out?

Just looking at the upcoming IB QC chips at 77W TDP, it appears Intel could easily make a 6C/12T IB chip with a ~100W TDP... then what for AMD? A 3 billion transistor 12 core Piledriver at 200W TDP?!
Just as it took the Pentium 4 a number of years to "die", it's going to take some time before the world is void of Bulldozer-esque CPUs. AMD will try to re-spin it and from the sounds of it enhance it with their "Piledriver" product.

Hopefully Piledriver will pound Bulldozer into the ground nice and deep so it can find its final resting place. :thumbsup::thumbsup:

You know what, though, AMD does have 32nm Llano. Perhaps we will see 32nm Llano X6 or X8 one day.
 

Keysplayr

Elite Member
Jan 16, 2003
21,209
50
91
So Bulldozer = Willamette, Piledriver = Northwood, and Hedgeclipper will = Prescott
 

jones377

Senior member
May 2, 2004
451
47
91
2 Llano cores, complete with 2MB L2$, are nearly identical in size to one BD module (also with 2MB L2$).

So, keeping everything that is uncore about Zambezi (power gating logic, L3$, etc), in theory they could have made an 8-core llano architecture zambezi that would have been the same die-size as the existing 8core BD.

What we don't know is how well it would have clocked, or how its power consumption would have turned out, considering where the A8's are clocking now and their power usage as mere quads.

I think perhaps the crossbar configuration would balloon with 8 cores, driving up the die-size a bit further. They probably would need to design a ring-bus for it instead.
 
sale-70-410-exam    | Exam-200-125-pdf    | we-sale-70-410-exam    | hot-sale-70-410-exam    | Latest-exam-700-603-Dumps    | Dumps-98-363-exams-date    | Certs-200-125-date    | Dumps-300-075-exams-date    | hot-sale-book-C8010-726-book    | Hot-Sale-200-310-Exam    | Exam-Description-200-310-dumps?    | hot-sale-book-200-125-book    | Latest-Updated-300-209-Exam    | Dumps-210-260-exams-date    | Download-200-125-Exam-PDF    | Exam-Description-300-101-dumps    | Certs-300-101-date    | Hot-Sale-300-075-Exam    | Latest-exam-200-125-Dumps    | Exam-Description-200-125-dumps    | Latest-Updated-300-075-Exam    | hot-sale-book-210-260-book    | Dumps-200-901-exams-date    | Certs-200-901-date    | Latest-exam-1Z0-062-Dumps    | Hot-Sale-1Z0-062-Exam    | Certs-CSSLP-date    | 100%-Pass-70-383-Exams    | Latest-JN0-360-real-exam-questions    | 100%-Pass-4A0-100-Real-Exam-Questions    | Dumps-300-135-exams-date    | Passed-200-105-Tech-Exams    | Latest-Updated-200-310-Exam    | Download-300-070-Exam-PDF    | Hot-Sale-JN0-360-Exam    | 100%-Pass-JN0-360-Exams    | 100%-Pass-JN0-360-Real-Exam-Questions    | Dumps-JN0-360-exams-date    | Exam-Description-1Z0-876-dumps    | Latest-exam-1Z0-876-Dumps    | Dumps-HPE0-Y53-exams-date    | 2017-Latest-HPE0-Y53-Exam    | 100%-Pass-HPE0-Y53-Real-Exam-Questions    | Pass-4A0-100-Exam    | Latest-4A0-100-Questions    | Dumps-98-365-exams-date    | 2017-Latest-98-365-Exam    | 100%-Pass-VCS-254-Exams    | 2017-Latest-VCS-273-Exam    | Dumps-200-355-exams-date    | 2017-Latest-300-320-Exam    | Pass-300-101-Exam    | 100%-Pass-300-115-Exams    |
http://www.portvapes.co.uk/    | http://www.portvapes.co.uk/    |