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AMD CEO talks of long-term turnaround

Well, I do wonder if you have over-read the counter struct. The outer dimension of the 2D array seems more likely to be different counters of a particular type, while the inner dimension is the counter data of a particular block. This is more reasonable, and all the data points match what is...
- pTmdfx
- Post #452
- Jul 28, 2015
- Forum: CPUs and Overclocking
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Various: AMD / HBM Analysis

I'm certain that the HBM1 standard is publicly available, and has no single word on clamshell-like thingy. Let alone the fact that 1024-bit interface is comprised of eight 128-bit channels. Moreover, that's not really interleaving but more of "share command bus but split DQ".
- pTmdfx
- Post #30
- May 19, 2015
- Forum: AMD
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Speculation on Zen's chipset

Likely both can be used together, since the chipset is seemingly just a hub of I/O which takes a x4 connection. The clock gen, SMBus and BIOS stuff are moved onto the SOC already. It is possible that the x4 connection can be split into four x1 GPP either.
- pTmdfx
- Post #37
- May 8, 2015
- Forum: CPUs and Overclocking
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Fudzilla: New AMD Zen APU boasts up to 16 cores (plus Greenland GPU with HBM)

No. Richland is a revision of Trinity, and fitting one chip into socket infrastructures does not equal to making two infrastructures compatible. Let alone that Carrizo doesn't ever announce an SKU that fits into FM2+.
- pTmdfx
- Post #1,043
- May 6, 2015
- Forum: CPUs and Overclocking
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Fudzilla: New AMD Zen APU boasts up to 16 cores (plus Greenland GPU with HBM)

I don't think there is anything to argue over this. By context it is referring to Excavator, not just on the slide but also with the voice.
- pTmdfx
- Post #1,040
- May 6, 2015
- Forum: CPUs and Overclocking
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Fudzilla: New AMD Zen APU boasts up to 16 cores (plus Greenland GPU with HBM)

Because there is rarely a market that Intel doesn't present? o_O
- pTmdfx
- Post #1,038
- May 6, 2015
- Forum: CPUs and Overclocking
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Fudzilla: New AMD Zen APU boasts up to 16 cores (plus Greenland GPU with HBM)

Richland as a revision of Trinity was branded as a new generation anyway. Marketing.
- pTmdfx
- Post #1,036
- May 6, 2015
- Forum: CPUs and Overclocking
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Fudzilla: New AMD Zen APU boasts up to 16 cores (plus Greenland GPU with HBM)

Excavator.
- pTmdfx
- Post #1,034
- May 6, 2015
- Forum: CPUs and Overclocking
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Fudzilla: New AMD Zen APU boasts up to 16 cores (plus Greenland GPU with HBM)

No words on that. More importantly, it has a higher chance of being a refresh, rather than something new with Zen cores inside.
- pTmdfx
- Post #997
- May 6, 2015
- Forum: CPUs and Overclocking
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Fudzilla: New AMD Zen APU boasts up to 16 cores (plus Greenland GPU with HBM)

You'll need a unified scheduler for such a configuration. That's said an ALU sharing a port with a store AGU doesn't sound unreasonable. P.S. It seems AMD still doesn't bother to give store data bus its own issue port, ehm.
- pTmdfx
- Post #732
- Apr 30, 2015
- Forum: CPUs and Overclocking
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AMD Carrizo Pre-release thread

Yeah. The "real" northbridge is between the core pairs, with the memory controller and the GMC block, IIRC. The rest on the left is the I/O complex and all the GPU and multimedia related stuff, which is called Graphics Northbridge.
- pTmdfx
- Post #1,046
- Apr 29, 2015
- Forum: CPUs and Overclocking
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AMD Carrizo Pre-release thread

A kind reminder: 14.48 mm2 does not include the L2 arrays and the cache interface unit.
- pTmdfx
- Post #1,045
- Apr 29, 2015
- Forum: CPUs and Overclocking
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Fudzilla: New AMD Zen APU boasts up to 16 cores (plus Greenland GPU with HBM)

8 modules means an 8192-bit interface of 1 to 2 TB/s of bandwidth. You may just get served well with a generic DDR memory stick after all and get that power consumption off package. HBM itself and the assembly isn't cheap but still bleeding edge now either. May 7 Analyst Day.
- pTmdfx
- Post #529
- Apr 28, 2015
- Forum: CPUs and Overclocking
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Fudzilla: New AMD Zen APU boasts up to 16 cores (plus Greenland GPU with HBM)

Needs of VRAM could grow. Needs of system memory could grow too. Yet today's HBM cannot cover both the needs on its own at a nice rate of capacity per dollar, especially if you are expecting it to appear on the BOM of more mainstream variants instead of stuff like the alleged HPC APU. Maybe...
- pTmdfx
- Post #526
- Apr 28, 2015
- Forum: CPUs and Overclocking
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Fudzilla: New AMD Zen APU boasts up to 16 cores (plus Greenland GPU with HBM)

Haswell must be super weak since there is one part with for god's sake eighteen cores! :oops:
- pTmdfx
- Post #517
- Apr 28, 2015
- Forum: CPUs and Overclocking
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Fudzilla: New AMD Zen APU boasts up to 16 cores (plus Greenland GPU with HBM)

The most important point made was, if one gonna build large cores, sharing no longer makes sense. In other words, it is because CMT was built upon the idea of sharing less critical section of the pipeline between two cores, but those become critical when you are on the way to boost single thread...
- pTmdfx
- Post #358
- Apr 27, 2015
- Forum: CPUs and Overclocking
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Fudzilla: New AMD Zen APU boasts up to 16 cores (plus Greenland GPU with HBM)

I guess "a Xeon E5 with a Tesla" is even closer as a comparison. :sneaky:
- pTmdfx
- Post #299
- Apr 11, 2015
- Forum: CPUs and Overclocking
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TSMC 16nm in production, 10nm still on schedule (2017). Intel IDF Shenzhen

It is quite funny because on the sheets AFAIK no tech companies would include research and development cost in the cost of final products. R&D is always listed as a separate "other" expenditure, and should always be about R&D. In the sense of absorption accounting, R&D is not a manufacturing...
- pTmdfx
- Post #48
- Apr 10, 2015
- Forum: CPUs and Overclocking
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AMD Zen supports CMT and SMT

The OOO execution pipeline of FPU is SMT. The decode/renaming front-end fed by the cores' dispatch unit is interleaved. The retirement queue is replicated for each core.
- pTmdfx
- Post #93
- Apr 5, 2015
- Forum: CPUs and Overclocking
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AMD Zen supports CMT and SMT

Frankly, if you already got SMT and do prioritise single thread performance, CMT makes less sense. At least the branch prediction logic, ICache and the L2 TLBs would no longer be shared (scales better on their own). The cache hierarchy is due for an overhaul, and I don't really expect L2 would...
- pTmdfx
- Post #7
- Apr 3, 2015
- Forum: CPUs and Overclocking
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GCN can't support Conservative Rasterization or Rasterizer Ordered Views

At least for Battlefield 4, it is used, or more precisely, Frosbite makes use of it. The engine runs quite a large set of compute shaders in parallel to the main rendering pipeline.
- pTmdfx
- Post #45
- Mar 27, 2015
- Forum: AMD
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AMD zen pre-release thread!

Yes.
- pTmdfx
- Post #21
- Mar 18, 2015
- Forum: CPUs and Overclocking
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IPad Air 2 has three processor cores, 2GB RAM

DVFS and thermal throttling. Maybe the 1.5 GHz is just the max clock speed of a core.
- pTmdfx
- Post #15
- Oct 22, 2014
- Forum: Apple
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[Deustche Bank Conference] AMD's New x86 Core is Zen, WIll Launch WIth K12

Which is just one of the new businesses. In regard to this particular business, even if you are right with integrated custom chips for game consoles, what about things other than these boxes? Atom is strong in the lower end embedded space, while Xeon has a strong presence in the embedded...
- pTmdfx
- Post #134
- Sep 12, 2014
- Forum: CPUs and Overclocking
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[Deustche Bank Conference] AMD's New x86 Core is Zen, WIll Launch WIth K12

Though the markets they are diversifying into all have or will have Intel's presence. Well, (sort of) except professional graphics.
- pTmdfx
- Post #132
- Sep 12, 2014
- Forum: CPUs and Overclocking
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David Kanter: AMD's ARM core will be 10% faster than their x86 one, ditch Bulldozer

What AMD has announced is a new from-sketch x86 core alongside K12 without telling specifics like positioning over existing family of products. But if one is logical enough, I guess no one would expect a high-level design from sketch is still in the same level playing field of those existing...
- pTmdfx
- Post #90
- Aug 19, 2014
- Forum: CPUs and Overclocking
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David Kanter: AMD's ARM core will be 10% faster than their x86 one, ditch Bulldozer

A lot of design features within the microarchitecture shall be common either. I would say in K12's case it would always cumulatively spend more than the new x86 core, because AMD had nothing in its R&D pipeline for bringing up an ARM product (let alone a core), and they have to fund it and build...
- pTmdfx
- Post #17
- Aug 17, 2014
- Forum: CPUs and Overclocking
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David Kanter: AMD's ARM core will be 10% faster than their x86 one, ditch Bulldozer

The "two designs" in his comment was, by context, more likely referring to AMD's two brand new cores in the sentence right next to the one you highlighted. They were known to be built "a bit differently", so he was adding some colors to this with what he expects the difference that he knew of...
- pTmdfx
- Post #16
- Aug 17, 2014
- Forum: CPUs and Overclocking
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David Kanter: AMD's ARM core will be 10% faster than their x86 one, ditch Bulldozer

Yep, though it generally is, even if it is just marginally better. Clock range is uncertain, by the way. If we assume bigger means wider architecture with more execution units and deeper structures (eh, as more die area is being occupied), it is possible of a design to sacrifice some of the...
- pTmdfx
- Post #15
- Aug 17, 2014
- Forum: CPUs and Overclocking
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[WCCF] AMD 14/16 nm Opteron and FX Processors with up to 20 Cores in 2016-2017

http://www.eetasia.com/ART_8800697976_499489_NT_538687e6.HTM EETimes But how exactly this indirect statement was backed is uncertain. Moreover, the later statement isn't quite precise with regard to what was really told on the Core Innovation Day event. So I assume there is a chance of this...
- pTmdfx
- Post #58
- Aug 12, 2014
- Forum: CPUs and Overclocking
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[WCCF] AMD 14/16 nm Opteron and FX Processors with up to 20 Cores in 2016-2017

This would be really a wishful thinking when those Xeon sells not because only of their high core count, but also the core itself and the platform package associated. Otherwise, wouldn't those many-small-core solutions from Oracle dominant the world already, instead of Xeon's deep root in the...
- pTmdfx
- Post #54
- Aug 12, 2014
- Forum: CPUs and Overclocking
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[WCCF] AMD 14/16 nm Opteron and FX Processors with up to 20 Cores in 2016-2017

The original source of it (which was an indirect speech quoting Jim Keller) did not mean 4 GHz but closer to 4 Ghz than 2 Ghz. It needn't immediately mean to sacrifice IPC either. Otherwise, any attempt to clock higher in the history should have brought the IPC of any core down to a negative value.
- pTmdfx
- Post #50
- Aug 12, 2014
- Forum: CPUs and Overclocking
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[WCCF] AMD 14/16 nm Opteron and FX Processors with up to 20 Cores in 2016-2017

You know, there was a plan of 16-core Seattle. But it was scrapped. God knows why.
- pTmdfx
- Post #49
- Aug 12, 2014
- Forum: CPUs and Overclocking
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[WCCF] AMD 14/16 nm Opteron and FX Processors with up to 20 Cores in 2016-2017

It is definitely interesting to see such a conclusion derived from just a frequency implication.
- pTmdfx
- Post #46
- Aug 12, 2014
- Forum: CPUs and Overclocking
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[WCCF] AMD 14/16 nm Opteron and FX Processors with up to 20 Cores in 2016-2017

"They will be closer in frequency to the 4GHz of AMD's latest Kaveri x86 SoC than today's 2GHz ARM chips, he said." So mathematically speaking, any numbers greater than 3.0 is closer to 4 than 2, while as a reminder we have BRCM's on-paper Vulcan at the 3 Ghz mark so far. By the way, note that...
- pTmdfx
- Post #45
- Aug 12, 2014
- Forum: CPUs and Overclocking
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[WCCF] AMD 14/16 nm Opteron and FX Processors with up to 20 Cores in 2016-2017

Probably it is because people like weird things, so people made weird rumours to satisfy the demand for those. Just expecting a proper SMT core is fine enough IMO, and it is always better to set your bar of expectation lower - at least not 20 core in the first wave of products. Eww.
- pTmdfx
- Post #42
- Aug 12, 2014
- Forum: CPUs and Overclocking
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[WCCF] AMD 14/16 nm Opteron and FX Processors with up to 20 Cores in 2016-2017

There is a new x86 core in addition to K12, and even the slide you quoted has a line of words about it. Why would people lie to you when this was the information from AMD? Don't even mention that Anandtech had an short article about "OMG AMD is also developing new x86 core" immediately published...
- pTmdfx
- Post #41
- Aug 12, 2014
- Forum: CPUs and Overclocking
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[WCCF] AMD 14/16 nm Opteron and FX Processors with up to 20 Cores in 2016-2017

Of course I know, but this doesn't matter much as the SKUs are the real end product. Ah, we have also the new Seattle and its friend Avoton on this list, and they are real man without IGP in this case. The point is that one can't generalize it this way.
- pTmdfx
- Post #40
- Aug 12, 2014
- Forum: CPUs and Overclocking
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[WCCF] AMD 14/16 nm Opteron and FX Processors with up to 20 Cores in 2016-2017

Technically speaking, there are 1P SKUs of chips without IGP. Yep. So this is just the matter of product binning and positioning.
- pTmdfx
- Post #37
- Aug 12, 2014
- Forum: CPUs and Overclocking
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WCCFAMD Carrizo APU on the 28nm Node Will Have Stacked DRAM On Package

Compute is a generic term, and you have tons of different types of workloads in the real world. So you would really not like to generalize things in this way. Particularly when we are talking about exploiting DATA PARALLELISM. Graphics is just compute, by the way, so some stages of the graphics...
- pTmdfx
- Post #248
- Aug 1, 2014
- Forum: CPUs and Overclocking

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