AMD CPU speculation... and expert conjecture

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NOOOOOO.......
.....
.....
okay i expected this....
No GDDR5 Support on Kaveri
http://www.fudzilla.com/home/item/33018-no-gddr5-support-on-kaveri
i do hope that amd finds a way to keep that hungry hungry igpu well-fed. or i'll cry injustice.

google-translated from the original link:
It is reported that early stage of development (18-24 months ago) AMD there is indeed going to let Kaveri APU supports GDDR5 memory, is similar to an example is the Sony PS4 host, the latter used as a unified 8GB GDDR5 memory, after leaked the news show Kaveri also integrates 128bit GDDR5 128bit DDR3 memory controller and memory controller, AMD had expectations Kaveri and the corresponding product came out, GDDR5 memory prices dropped to an acceptable range that people can become mainstream, but now look at to AMD's idea is a little too far ahead.

Not to mention GDDR5, the current DDR3 memory prices have remained high, really do 4GB or 8GB GDDR5 memory, which will cost 80,150 dollars, so the price is not too mainstream.

Benefits of using GDDR5 can achieve higher bandwidth, dual-channel DDR3-2133 memory bandwidth of about 35GB / s, replace the words GDDR5 bandwidth of up to 70GB / s. Now, with the bursting of this vision, we still continue to use DDR3 memory bar, memory manufacturers have considered a good day, and now there is the trend of rising prices.

btw, if the kaveri apus follow 7xxx numbering then the igpus might have 9xxx e.g. 9660D, 9760D numbering.

depends on what you want to do with your pc. why not open a new thread in the systems section?
 

it's a new uarch, new features, so the imc should be improved as well. but improved how much and where? more of what with less of what? how will amd counteract the rising ddr3 prices without eradicating imc bottleneck? i wanna see amd provide answers to these in kaveri's performance.
imo gddr5 was a good alternative to high speed EDRAM acting as a big last level cache. i guess now it'll be up to the new buses.
 

Thats what I meant, reuse the
Phenom branding for the enthusist cpus agian, to distance themselver from the failded FX line.
 

ah. that could create customer confusion. some of the phenom ii cpus are still on sale. chances are people might associate phenom iii with am3 platform instead of am3+. it's too soon, barely 2 years since amd re-introduced fx branding.
it really depends on amd's marketing division. if they think phenom iii is a credible brand, they'll likely do it.
 


I didn't specifically say "The CPU will be 2.75 GHz"...I said, it could potentially be 2.75 GHz...whether that was in turbo or otherwise. Your comprehension is low on this, clearly. Additionally, I have not denied that was my position in light of the information available at the time.

I said it would be AM3+ back when the word from AMD was that another generation of processors was coming to AM3+ and it was supported through 2015. I was not the only one who said that either.

Since new information has come out, I am no longer sure that it would be AM3+, it could be an entirely new platform, for all we know, that is, as of yet, unannounced.

Now, could you stop trying to be a martyr and discuss the topic of the thread.
 


its not exactly weak either.

CPU_01.png


more often than not this is the case. AMD and Intel aren't that far apart. you have to dig for cases to support "dual core is good enough"

Intel's strength is their memory controller. When does main memory speed/latency affect gpu performance? meaning does memory affect when the gpu is doing very little rendering or when the gpu is being stressed?

Put another way. How does intel and AMD compare when you faceplant a wall so that the cpu isn't doing anything but feeding the gpu? How does each cpu compare when full on destruction is happening?

Wich one is more important, faceplanting a wall to boost average fps, or minimum fps?
 

none from the cpu/apu dept. only the discreet gfx and marketing guys.
i wish i knew what they were trying to promote!!!
 


their new GPU they just launched maybe
 



You started saying was 2.2Ghz, then claimed 2.75Ghz by quoting the FCC doc. Someone explained you that 2.75GHz is the memory, the CPU is clocked at 1.6GHz and your answer was "NO", pretending that 2.75GHz was the freq. of the CPU. Instead learning you pretended to scorn him. You can now try to hide that episode, but it is not going to happen.



Again (this is the second time that I repeat this) the problem is not if you were in mistake or not. The problem is that you pretended that you never said so.



^^ Fixed it for you.

Now you could maybe comment in the slide #13 of the recent talk given by AMD.

I interpret it as FX-4000 series is abandoned and AMD considers it a good idea to pair high-end R9 280X with an APU. In that slide, AMD claims that an APU+dGPU provides a gaming experience similar to using a 8350 with the same dGPU.

No what I agree/disagree, merely emphasizing that slide #13 seems to delineate AMD plans for the desktop.
 


8350, Thank you very much for posting this here. As a new member to THG, I have not seen or participated in an AMA thread and did not know they existed. I would have missed this opportunity. Again, Thank you.

 


Remember that Baeca leak? It was marketed as a Phenom IV.

Perhaps we will see something new in Phenom 4 branding instead?

AMD has been very quiet about their next generation HEDT platform. They were also very quiet with 290x release.

Imagine AMD drops a new chipset for HEDT that has some sort of technology that lets 290x crossfire really haul.

I really wouldn't put it past them at this point to drop something huge out of thin air. AMD did such a good job keeping Hawaii under wraps that Nvidia didn't even have an answer at all and got completely blindsided by it.

The Phenom 4/Baeca rumor was shot down really quickly because the only 25nm process that exists is only really used for memory and it's a collaboration between Micron and Intel. However perhaps there's at least a little bit of truth behind this.

I am just kind of thinking of how companies intentionally "leak" things like this to gauge public perceptions. Perhaps this was some sort of fake leak to see how people would respond to Phenom IV branding on a new socket with a lot of cores? Maybe it's all just completely fake? I don't know, a little digging on the internet leaves me reading a lot of people saying that it has to be fake because there's no way a 6ghz chip is 75w and about the 25nm, but this thing could be fake yet still hinting at things.

Examples of this happening in the past:

Rumor: Nvidia working on "Titan LE"
Later: Nvidia releases GTX 780 as a lightweight Gk110 product

Hate to bring up something that's extremely sketchy but it might at least provide some clues for us.
 
I still think AMD needs to come out with high end "FXish" CPUs. I know they market for them is quite small, but the publicity of having such a chip trickles down there entire line. Intel has benefited greatly from such press. It works with GPUs s well.
 


Well, considering the PS4 APU is actually 2.0+ GHz and not 1.6...you'd need to increase the numbers by roughly 25% then double them.

Looks like you're still not there...

Stop trying already...you're using bad/old information to attempt to create a false equivalency.

http://www.tomshardware.co.uk/forum/352312-28-steamroller-speculation-expert-conjecture/page-138

That is the only post I have seen where I discuss the clockspeed of the APU with any certainty...

Where did I say that it was going to be 2.75 GHz??? You say that I said that...however, there is no proof.

Stop the shenanigans. If you want to post that I said something...from this point forward, I will not acknowledge you unless you quote my original post and link me to it.

You are butchering nearly everything I say, and what you're not butchering, you're misreading, or completely not understanding. This is like talking to hajidurp....except you're on about ARM the way he was about Intel.

Are you 2 at all related? Just curious....
 


http://ir.amd.com/phoenix.zhtml?c=74093&p=irol-newsArticle&ID=1865755&highlight=

Read the quarterly report.

Basically, notebook mobile was the worst performing part of AMD last quarter.

Desktop class CPUs did second best and GPU growth is out of control (in a good way).

I don't see AMD not using their GPU wins to levitate their HEDT CPU platform.

People are swarming to AMD GPUs. Growth is near 100% and this time last year AMD was doing very well with 7970.

I think we are about to see things surface at APU13 which show that AMD is focusing on APUs because they have to as there is no HPP node for AMD to launch a HEDT class CPU.

Meaning I am feeling that AMD Is so quiet in regards to HEDT (FX successor or new FX chips) because they simply don't have a place to make a chip that runs at 4ghz and is around 300mm^2 right now. AMD also stated that they're not doing anything besides bulk at 28nm and that they're not commenting on what they will do after 28nm. Meaning that AMD is either going to wait for 14nm FD-SOI or release new chips on 32nm.

The best thing AMD could do right now is refresh the Vishera platform. Update PD to what they did with Richland where it overclocks to ridiculous levels, add a new chipset, and add some sort of thing that works with the new platform chipset that unlocks potential of R9 series GPUs.

That would have been the smartest thing to do, at least. It's probably too late for that though.

But keep your eyes open at APU 13 for lots of talk about 28nm bulk and i am pretty much expecting there to be absolutely no sign of anything SOI or any sort of part that would really love SOI.
 
I agree, AMD has been very sneaky with releases lately, with their additional funds form MS and Sony, they have the funding to put in to a big release. Amd also hired two of the best CPU Architects in the market, (I forgot the names). If I remember right they did something similar when The released Athlon 64 and beat the crap out of Intel's CPUs.
 


I sent a question to jpishgar asking why the thread was in the CPU forum when there didn't seem to be any CPU personnel on the panel. The thread has been moved to the graphics forum.

I wouldn't expect them to discuss FX much.

Edit: I just noticed the titled changed to Official AMD Radeon Representatives
 


They have hired a plethora of talent:

John Gustafson - Father of "Gustafson's Law", former Intel employee, GPU compute expert. (Chief Product Architect GPUs at AMD)

Raja Koduri - Ex Apple employee for GPUs, ex ex AMD employee for GPUs/Drivers. (VP of Graphical Solutions at AMD)

Jim Keller - Ex Apple employee for A5-A7, ex ex AMD employee, architect of K7/K8 and HTX. (Chief Product Architect CPUs at AMD)

With those guys working on this, I don't foresee an issue with them putting out phenomenal product designs. What I do see, right now, is a fab issue. 28nm FD-SOI @ GF via STMicro's designs is only just beginning to ramp. Yields won't be good for a while yet, until it's mature, and AMD has had to eat costly low yields @ GF before. I think if they do a 28nm FX type CPU, then it will not be until the process is mature enough to support a ~280-300mm^2 die size with moderately good yields. That may be 6-12 months out, depending on how the yields for the process go with the IBM processors that GF is producing. If the yields work out well for the POWER8 stuff, then AMD may dive into the pool.

This is particularly true of the position they took using bulk. It is far easier to port from bulk to SOI than it is to go the opposite direction. This is because the process for bulk requires more masking layers to perfect, and SOI removes a great many of those, so it is essentially "easier" to produce. The designs don't translate across 100%, though the portability is probably close to the 80% mark.

I also feel that they are holding something back, hopefully I can get a good, solid answer from AMD in the AMA. Though, I somehow think that it will be sidestepped by NDA's and other methods. At least if we prod them enough about what the FX successor will be, they will see the massive interest in the product.
 

Perhaps they will launch new 3M/6C HEDT products on ye olde 32nm FD-SOI and then when 28nm FD-SOI matures, they could launch Excavator or SR HEDT on it...
 


I still intend to prod them about FX replacements, either way. Hopefully they can get back to me about it, or give at least a simple answer regarding the possibilities.
 


AMD also has TSMC to fall back on
 
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