The Platform: Intel 955X

AMD's dual core Athlon 64 processors will work in all current Socket-939 motherboards with merely a BIOS update. The same level of compatibility obviously isn't true for Intel's dual core solutions.  You'll need a new motherboard to support the Pentium D and Pentium Extreme Edition chips, and thus, Intel shipped us a board based on their soon-to-be released 955X platform. 

The platform boasts a dual channel DDR2-667 memory controller, but given that the chips still only support an 800MHz FSB, the added bandwidth of DDR2-667 is useless.  Even for bragging rights, running at DDR2-667 doesn't make sense, as the memory that Intel shipped with the system is rated at 5-5-5-15 timings at 667MHz.  Wasted bandwidth and higher latency memory is nothing to get excited about in our book.  We're not entirely sure what Intel is up to, but they had better plan on increasing the FSB of their chips really soon if they want DDR2-667 (or even 533) to gain any sort of acceptance. 

Other than support for dual core, faster DDR2, RAID 5 and 8GB of ECC memory, the 955X doesn't have any features to boast over the current platforms. It does look like Intel may be planning SLI support for the 955X however:


The 955X board that we received had two physical x16 PCIe connectors, but only one of them was electrically a x16 slot.

Despite Intel's warnings not to make any judgments about final performance or stability, both the 955X and the Pentium Extreme Edition were as rock solid during our testing as any product that we've encountered.  This was quite possibly the most stable encounter with a pre-release CPU, chipset and drivers that we've ever had.  That being said, we really didn't expect Intel to break tradition with a platform of which they weren't 100% sure. 

The Chip: Pentium Extreme Edition The Intangible Dual Core
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  • Questar - Monday, April 4, 2005 - link

    Is Xvid a relevent test? It's not multithreaded
  • boban10 - Monday, April 4, 2005 - link

    hi. thanks to responding.
    i have some sugestion for you work.
    can you test this:
    http://forum.doom9.org/showthread.php?s=&threa...

    easy real media producer, you get it here:
    http://redcheek.net/erm/ermp_full.zip

    its free..
    can you try to encoding some things, i wannt to see how much diference it it on one and two cpu, and would be nice if you can test with athlon xp too, because i wannt to see how much gain i get with dual-core cpu...

    then some more programs that suport dual-cpu:
    TMPGEnc , Photoshop. Premiere pro ...

    thanks...
  • Anand Lal Shimpi - Monday, April 4, 2005 - link

    Thanks so much for the comments, keep em coming in. This is just the first part, there's more coming. I've got another NDA tomorrow morning but then after that it's more dual core. Let me know what you want to see, I've already got quite a bit planned :)

    And yes that die shot is correct, it is simply rotated 90 degrees clockwise to fit on the page better.

    Take care,
    Anand
  • erikvanvelzen - Monday, April 4, 2005 - link

    Are you 100% sure that die picture is right? Again a great review from Anandtech!
  • DAPUNISHER - Monday, April 4, 2005 - link

    I must have missed it somehow; what storage setup did you use? Thanks and great article kid :-)
  • boban10 - Monday, April 4, 2005 - link

    Anandtech, i wannt to thank you, because this is a great preview....

    ronaldo
  • Avalon - Monday, April 4, 2005 - link

    Impressive results. Sometimes I come across a scenario where I'm doing two things at once fighting for 100% CPU time on my A64 Sempron rig, so it would be quite nice to have a dual core chip to handle that for me. I personally can't wait to see a more full review, and hopefully one of AMD's dual core setup as well.
  • karlreading - Monday, April 4, 2005 - link

    #11
    Very good points, but i think the thing to remeber about intel is this:
    Yes, they are beating AMD to the desktop. And yes, that will be good beacuse it will encourage the user base to adopt dual core, and thus programers to multi thread more. Bineg a enthusiast site, obviously dektop dual is the scene we care about and sticks in our minds.

    BUT:

    AMD will beat out Intel to dual core in the enterprise segment. THE area where the real money is. THE area where dual core can stretch its multithreaded wings. THE area where it has a product thats already causing waves ( opteron may not have the penertration of xeon, but it's given AMD a seriouse status in the enterprise sector and it is a respected architecture ), and, THE area it can really try and hurt intel, and its partners. DELL wont have a dual core capable box yet, HP can have one very soon. More to the point, if ur a IT head and u spent on Opteron server, Youll be a very happy one. Beacuse that 8 Way opteron box you got can suddenly become a 16- way box.

    Its strikes of AMD's stratagey with x86-64. No, it wasent as powerful as itanium, it wasent new, fresh, and funky. It certainly wasent the first 64 bit cpu for enterprise wither, not by a long shot. But by giving comapnys, and people what they want, a easy, painless upgrade path, it suceeded in destroying intels dream of killing of x86. Intel was still denying yamhill when it was already in there cpus, lying dormant for the day intel would swallow its pride and follow AMD down the x86-64 route.

    Intel will beat AMD to dual core on the desktop, but they will make waves and in roads in the enterprise sector, and, let's face it, its just better that way.
    Karlos
  • Googer - Monday, April 4, 2005 - link

    "I tried to take a screenshot of what was going on, but print screen wouldn't work. I could launch Paint, but I couldn't paste anything into it"

    If paint does not work you can always use wordpad and paste any images to it that are cahced to the clipboard.
  • karlreading - Monday, April 4, 2005 - link

    Personally, im very excited about dual core. It appears to me that everyone seems to be forgeting the main thing.
    Its not necesseraly about doing one thing faster, its about doing MORE things faster.
    the multi-tasking scenarios ANAND has given us is where the real excitment and benefit come in. Now, as a AMD FANboi, all i say is this: Bring on TOLEDO :)
    Karlos

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