Ivy Bridge Architecture Recap

At IDF Intel disclosed much of Ivy's CPU architecture, but below is a quick summary:

- 4-wide front end with µOp cache from Sandy Bridge
- OoO execution engine from Sandy Bridge
- Data structures previously statically shared between threads can now be dynamically shared (e.g. DSB queue), improves single threaded performance
- FP/integer divider delivers 2x throughput compared to Sandy Bridge
- MOV instructions no longer occupy an execution port, potential for improved ILP when MOVs are present
- Power gated DDR3 interface
- DDR3L support
- Max supported DDR3 frequency is now 2800MHz (up from 2133MHz), memory speed can be moved in 200MHz increments
- Lower system agent voltage options, lower voltages at intermediate turbo frequencies, power aware interrupt routing
- Power efficiency improvements related to 22nm
- Configurable TDP

I've highlighted the three big items from a CPU performance standpoint. Much of the gains you'll see will come from those areas coupled with more aggressive turbo frequencies.

On the GPU, the improvements are more significant. Some of the major changes are below:

- DirectX 11 Support
- More execution units (16 vs 12) for GT2 graphics (Intel HD 4000)
- 2x MADs per clock
- EUs can now co-issue more operations
- GPU specific on-die L3 cache
- Faster QuickSync performance
- Lower power consumption due to 22nm

Introduction The Lineup
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  • niva - Wednesday, March 07, 2012 - link

    I think it's a long time away from approaching 560m performance. If you're going to do any remotely serious gaming on a laptop it's still best to get a dedicated graphics card.

    I'm still sticking to gaming on a tower, so these CPUs (esp the AMD llano) make sense for me in laptops. Don't ever see myself gaming on a laptop unless I completely get rid of the towers in my house... which won't happen anytime soon (if ever.)
    Reply
  • pepperoni - Wednesday, March 07, 2012 - link

    I felt the same way when I was shopping recently. I WANTED to buy a Llano-based notebook (inexpensive, better graphics vs. Intel). The problem is there's no such thing as a slim and light Llano. Every OEM sticks you with the same configuration: six pounds and 15.6" turd-768 resolution screen. It's bizarre.

    For the sake of competition, I hope Trinity will get some better design wins.
    Reply
  • CeriseCogburn - Sunday, January 27, 2013 - link

    If you look at the gaming charts, the resolution may go past x768, but the settings are on LOW, and don't give us a minimum frame rate, so the answer is:
    That's all that llano can handle is low end low rez.
    So AMD forces the giant .lb weighted monster as a selling point.
    Reply
  • poached - Wednesday, April 18, 2012 - link

    so AMD? Reply
  • Demon-Xanth - Wednesday, March 07, 2012 - link

    I agree with you there. To get those "$100 mid range GPUs" on a laptop you need to bump up the cost by around $400 to get to one that simply can have one. Most laptops currently do not have discrete GPUs.

    I am glad to see that integrated graphics from both Intel and AMD can now be compared with low end cards like the GT520 and GT440 without it becoming a laugh. Also that they are actually completing the tests well now. That is a rather major step. I remember some reviews of integrated graphics that resulted in a lot of either "could not complete" or "the bar is too small to fit a number on" entries.
    Reply
  • Azethoth - Wednesday, March 07, 2012 - link

    The IGP provides the QuickSync implementation. It would be insane to not include the silicon for it on the high end system. In addition moving forward you can get compute work out of the GPU so why would you ever not include it. Reply
  • danjw - Wednesday, March 07, 2012 - link

    Quicksync the Intel video transcoding feature is based in the GPU. This is important to a lot of users. Reply
  • sweetspot - Wednesday, March 07, 2012 - link

    Well also these make for nice office machines. So businesses upgrading there desktop workstations.

    When you have thousands of employees, the desktop refresh, these are decent option, since they are not gaming at work ( right lol ).
    Reply
  • Taft12 - Sunday, March 18, 2012 - link

    Hardly any large corporations buy desktops anymore. Maybe for the call centre employees, that's about it. Reply
  • AFUMCBill - Wednesday, March 07, 2012 - link

    Because gaming isn't the only thing that uses graphics cards. For instance, more and more video editors use the graphics card for doing video decode/encode/applying effects. So having a high performance graphics engine to go along with the high performance CPU can be a really nice thing. Reply

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