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  1. C

    Google May Be Designing Chips In Threat To Intel

    https://www.google.com/search?q=agnilux
  2. C

    Out-of-the-Box Computing The Mill general purpose CPU architecture

    I remember looking at this a few months ago, and I wasn't impressed, although I can't remember the details any more. I do remember being annoyed at how long it took to get to meaningful details beyond "the belt solves everything and I'll talk about the belt later" - to the point where it felt...
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    did I break touchpad screen?

    You can try popping the screen off, separating the front panel from the LCD, and reassembling it. I took mine apart a while back to replace the power button, though I didn't have to disassemble the LCD. It took a lot of force to open, and I broke a bunch of the clips in the process but it...
  4. C

    What's the Cheapest Wireless Plan for iPad

    How are you using 11GB/month? You're not doing that with emails... is it possible you're reading the amount of space used on your phone/tablet instead of the monthly data consumption?
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    HDL languages and Synthesis discussion

    What would you use them (or other high-level language features) for, in a hardware world? My perspective is likely warped by my experience (I have a hammer, and I've been turning things into nails for years, so the value of a screwdriver doesn't immediately jump out at me)... I might be missing...
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    AMD ICE/Debug-mode code?

    You're looking for undocumented AMD MSRs? Did anyone ever come up with a use for them?
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    xBox One's SoC is TSMC

    Are the metal stacks consistent?
  8. C

    AMD Opens New Global Design Centre in Hyderabad

    Bobcat and Jaguar were both primarily designed in Austin, with portions of each designed in Fort Collins. The India teams did mainly SOC integration (Ontario/Zacate, etc). Is this just an announcement of new physical facilities? I thought AMD had a team in Hyderabad ever since the ATI...
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    How does the Turing Machine form the basis of our computers?

    I don't think that's really correct. The IBM System 360 was from 1964, and as far as I can tell, it is much closer to a modern computer than a Turing machine. The Universal Turing machine Wikipedia article contains this quote from the mid 1950s: So, I don't believe your statement is...
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    How does the Turing Machine form the basis of our computers?

    Starting with something as abstract as a Turing machine can actually be a very difficult way to learn how computers work. Do you know any programming languages (even BASIC or JavaScript will do)? If not, I think it's easier to learn a simple programming language (for example, write a program...
  11. C

    Is this a good gaming laptop?

    No, that computer is much too slow for gaming. AMD's E-series and C-series processors are designed for very low power consumption (good for battery life) and low cost, but they aren't very fast. I have a laptop with an E-350 processor (a much faster version of the C-50 chip in that laptop) and...
  12. C

    First Steamroller processor core exposure

    I actually respect my NDAs, so I usually can't give specific technical information. Fortunately, Exophase did a good job refuting the pure, unadulterated BS in the post I'd quoted.
  13. C

    First Steamroller processor core exposure

    Do you just make this stuff up? I've seen posts where you state things as fact that I know are completely wrong, and occasionally bits of accurate information are sprinkled in... but you state them all as if they're verified fact. And you never cite sources. It's incredibly annoying. While...
  14. C

    AnTuTu and Intel

    Someone is trying to improve the performance of a future CPU. CPUs are very complicated, and you have to pick and choose which things you make fast (if you try making everything fast, your CPU will be too expensive and use batteries too quickly). To pick the right parts to make fast, you need...
  15. C

    First Steamroller processor core exposure

    In practice, you leverage things that make sense to leverage, and redo things that make sense to redo (of course you also encounter into some not-invented-here or want-to-redo-but-don't-have-time). Sometimes you can't even tell from an external presentation which components get leveraged and...
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    AnTuTu and Intel

    Great post, Exophase. A friend who works on an ARM design has been ranting for a while about Antutu and Geekbench and the quality of code currently coming out of JITs on ARM... I really hate the cross-ISA situation in terms of benchmarking. The worst part is that generally-credible reviewers...
  17. C

    Ivy Bridge stability testing

    Even the manufacturer doesn't always know. Sometimes they'll get problem reports from a customer or parts get returned, and they'll end up discovering a slow path in the chip that they weren't expecting. At that point they have to update their test programs to cover that new path. Generally...
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    when CPU cores come out of power-gated state, how do they initialize?

    If you have access to this paper, it might cover some of what you're looking for. It's not a standard thing though... everybody does it slightly differently. edit: the Family 14h BKDG discloses a lot about CC6 and PC6. Section 2.9.6 might be the short answer to your question, but there's a...
  19. C

    THe Sandia Cooler - Breakthrough in Air Cooling design

    The 2013 technology brochure indicates this design will be consumer-friendly: edit: That youtube video linked above actually addresses a lot of the misunderstandings people seem to have. I'd seen an older video before, but not this one.
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    THe Sandia Cooler - Breakthrough in Air Cooling design

    I'm having trouble following what you're saying. I'm not trying to ignore any physics, and if I have ignored some, I would like to understand specifically what I've got wrong. Just saying "thermodynamics" and quoting pvnrt doesn't help me... I've been through physic class and have been exposed...
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    THe Sandia Cooler - Breakthrough in Air Cooling design

    So, there are two main aspects of the Sandia cooler to consider: the air gap, and the significance of rotating fins. 1) The smooth, stationary surface of the bottom plate, and the smooth, rotating base of the spinning part. I think you're not convinced that the heat transfer between them can...
  22. C

    THe Sandia Cooler - Breakthrough in Air Cooling design

    Sci-fi carbon nanotubes are great when they're manufacturable, but they aren't yet. As for the "dead spots" stuff, I think you've misunderstood what the Sandia cooler is trying to solve. It's not a large-scale "where is the fan blowing" issue... using a quality centrifugal blower that provides...
  23. C

    Massive AMD APU Assault Includes Spooky and Spectre Kaveris

    AMD demoed Kaveri at Computex, so they have had silicon in their labs for a long time now.
  24. C

    First Steamroller processor core exposure

    My main area of expertise is "physical design". I started writing up a much longer reply but I probably shouldn't derail the thread even more :). The Wikipedia article looks like a decent overview, but feel free to ask more questions in PMs or another thread.
  25. C

    First Steamroller processor core exposure

    I don't think I can really give you a useful answer here... I don't have much insight into that side of things (designers can finish working on projects over a year before they hit the shelves). There's enough information out there that your guess is probably about as good as mine in this case.
  26. C

    anand's jaguar article

    IDC, that's a cop out. Most people don't have time to do full due diligence in every aspect of their lives. At best, interested people will check the ingredients labels on food; of those who do, few will spend the time to understand what each one means. Even fewer will understand the science...
  27. C

    First Steamroller processor core exposure

    Sorry, I couldn't find an official disclosure, and I'm not going to be the one who leaks something.
  28. C

    First Steamroller processor core exposure

    I honestly don't know - I quit AMD last year, and I didn't work on the Bulldozer family, so I only know high-level bullet points about those cores. I also know that plans change (sometimes drastically), so my knowledge could easily be outdated.
  29. C

    First Steamroller processor core exposure

    What are you considering I/O here? The claim is that this is just a dual-core module, which wouldn't have any PHYs, right?
  30. C

    anand's jaguar article

    Compared to what? As far as I can tell, it (ADDPS?) is also 3 cycles on recent Intel designs, or 4 cycles on AMD's family 10h and 12h and 6 cycles on AMD's more recent "high-performance" designs. Intel's cores clock higher, but as far as I can tell, you could fit three 28nm Jaguar cores on one...
  31. C

    anand's jaguar article

    The AMD "fair and open competition" stuff always seemed really whiny to me, but this is a situation where the gripes are completely legitimate. AMD didn't communicate that very well. It does get annoying, but it's a case of: kid A breaks the rules, kid B complains to teacher, teacher ignores...
  32. C

    anand's jaguar article

    It's (very) old news, but there's a vocal set of fanboys/apologists who seem to always claim Intel didn't do it (or stopped doing it long before they did), and it can be hard to figure out which posters are credible unless you've taken the time to find the original sources for information...
  33. C

    The AMD Kabini Review: A4-5000 APU Tested

    I've heard that NAND controllers are actually very complicated - apparently the raw bit error rate on flash is very high, and it takes a lot of work to build a decent (fast and reliable) controller, so I wouldn't expect to see an integrated one any time soon. Maybe Intel could do it, but I...
  34. C

    LLC confusion and problems

    Motherboard-level transients are probably going to be on the order of less than one microsecond to a few microseconds. Definitely not milliseconds. I think I saw that paper (or another one on the same technology) when I was at my last job, and it lead to some interesting lunch discussions!
  35. C

    Kabini Rumors

    Wow, that "article" is crappy! It says Chekib was hired as part of Rory's reset, but Chekib has been at AMD since 2008 and Rory didn't start until 2011. The whole thing reads like it was written by somebody who doesn't really understand the business and just lapped up everything AMD gave them.
  36. C

    Kabini Rumors

    Macro is AMD-speak; other companies use different names; this slide just considers macros inside the core (or L2). In general, "macro" means a block built from things other than ordinary standard cells, then packaged up in a way that hides the internals. In particular, they can be things like...
  37. C

    Kabini Rumors

    I've written quite a bit about that in the past. The short version is that I think hand design is the wrong choice in most situations. Here are some posts I've written when this topic came up before: * Discussion with TuxDave (keep clicking the little arrows next to our names to get back to...
  38. C

    Kabini Rumors

    Is it in production yet or are we still hearing marketing claims? If it's in production, do we have any reasonably comparable designs to look at? Never underestimate the power of inertia. In the past, automated design tools weren't very good, so CPU designs were done by hand for...
  39. C

    Kabini Rumors

    Source?
  40. C

    Kabini Rumors

    1.648V on TSMC40G :o.
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