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Phenom II X6: First Details Of ‘Thuban’ Design Emerge

Phenom II X6: First Details Of ‘Thuban’ Design Emerge
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Well, It Looks The Same…

Last month, Intel launched its first six-core desktop processor, the prohibitively-expensive Core i7-980X. Later in the month, it took the wraps off of its first four- and six-core 32 nm Xeon 5600-series CPUs. So, small and medium businesses are taken care of, as are wealthy video enthusiasts (the segment most suited to thousand dollar hexa-core processors, in my opinion). But what about everyone else? Is there really a need to push more than four cores to the enthusiast market spending between $200 and $400 on a new processor?

That’s a question I’ll be answering before the end of the month, when AMD officially pulls the covers off of its Phenom II X6 family. In the meantime, though, we have some early information on the upcoming lineup that we’re able to share.

Drop-In Ready

Just as Intel crammed Gulftown into the same thermal envelope as Bloomfield, despite a 50% increase in cores and cache, so too is AMD preserving the upgrade path of Socket AM3 (and Socket AM2+, if you’re still using an older motherboard). There’s a big difference, though. Intel made a transition to 32 nm manufacturing, cutting its die size even as transistor count skyrocketed. AMD is still using its 45 nm node on its six-core offerings.

How exactly is AMD able to shoehorn additional complexity onto a die that doesn’t violate the thermal ceiling of its existing platforms? In short, the company improved its process technology by introducing low-k dielectric material in the metal layers, reducing capacitance. The result is less leakage, less power consumption, and less heat.

A New Platform

Of course, just because the Phenom II X6 will drop into an older AM2+/AM3-based motherboard doesn’t mean that’s the direction AMD is going to recommend enthusiasts go. The company announced its Dragon platform last year, consisting of Phenom II X4, a Radeon HD 4800-series graphics card, and its 790-series chipsets. Well, this year the company is unveiling the Leo platform.

What’ll it take to upgrade you from a legendary beast to an astrological sign of the Zodiac? A six-core Phenom II X6 processor, a motherboard based on an 800-series chipset (the 890GX or the upcoming 890FX), and a Radeon HD 5800-series graphics card. Will there be any reason to upgrade your existing AM3 board just to get land under that Leo umbrella? We remain skeptical.

And while pricing on the new CPUs is still undisclosed, insiders have told us to expect complete Leo platforms to cost roughly what Intel is asking for the Core i7-980X (for what it's worth, etailers have purportedly outed AMD's flagship already, a 3.2 GHz part with a 125W TDP priced under $300). Naturally, we’ll need to weigh performance against those price points to determine exactly what you’d be getting for your money. As mentioned, that’ll happen before the end of the month.

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  • 23 Hide
    dtemple , April 8, 2010 4:23 AM
    This is great news! Based on the previous articles here on Tom's that show most games only benefit from up to about 3 cores, I think AMD has hit the nail on the head with Turbo CORE by making 3 cores increase in speed under heavy load, and yet still having the ability to use six cores in heavily threaded apps like video editing and photo editing software. Beautiful.
    Now it's time for software devs to catch up and thread apps more.
  • 15 Hide
    welshmousepk , April 8, 2010 5:28 AM
    AMD have already said that the leaked pricing is correct, and that their hex-cores WILL be under 300 dollars.

    i don't have the page bookmarked, but i'm sure you guys can find it. not speculation, fact.
  • 11 Hide
    daniel266 , April 8, 2010 4:23 AM
    if just AMD put The "Hyper threading" feature on this cpus im sure it will beat some of the i7 with a price we can afford ..forget 980 ..$1099 price....
Other Comments
  • 11 Hide
    daniel266 , April 8, 2010 4:23 AM
    if just AMD put The "Hyper threading" feature on this cpus im sure it will beat some of the i7 with a price we can afford ..forget 980 ..$1099 price....
  • 23 Hide
    dtemple , April 8, 2010 4:23 AM
    This is great news! Based on the previous articles here on Tom's that show most games only benefit from up to about 3 cores, I think AMD has hit the nail on the head with Turbo CORE by making 3 cores increase in speed under heavy load, and yet still having the ability to use six cores in heavily threaded apps like video editing and photo editing software. Beautiful.
    Now it's time for software devs to catch up and thread apps more.
  • 8 Hide
    westerbamos , April 8, 2010 4:24 AM
    sounds like it could be promising; we'll have to see how it performs compared to the i7-980x
  • 7 Hide
    duk3 , April 8, 2010 4:27 AM
    That 4- core with turbo sounds interesting.
    As does the rest of this :p 
    Looking forward to a full review!
  • 4 Hide
    chefboyeb , April 8, 2010 4:31 AM
    I'll gladly pass on the 800 chipset, but toss me a Thuban anyday... I have a 790FX that still handles very well and would still do the same in comparison...
  • 3 Hide
    sseyler , April 8, 2010 4:31 AM
    I probably don't need to upgrade my X4 920, but I can't resist the deal... drop in replacement, can use the same HSF, improved multitasking and single-threaded performance... sigh.
  • -4 Hide
    micr0be , April 8, 2010 4:32 AM
    i call the leo platform an architecture compatibility heaven ergo (... MAXIMUM ... efficiency...) and yes it will play crysis. <_<
  • 9 Hide
    Kelavarus , April 8, 2010 4:36 AM
    daniel266if just AMD put The "Hyper threading" feature on this cpus im sure it will beat some of the i7 with a price we can afford ..forget 980 ..$1099 price....


    Well, that's debatable, at least for gaming. If I recall correctly, tests with Intel CPUs with hyperthreading on vs off usually found minimal performance loss, in fact, sometimes gained a couple FPS.

    For productivity, yes, would definitely help, but I'll admit I'm a gamer first and foremost. :p 
  • 0 Hide
    p1n3apqlexpr3ss , April 8, 2010 4:46 AM
    5 cores? im guessing not... ACC has been left out of the new gen southbridges... im expecting those parts to just go down to the 960t?
  • 9 Hide
    Dekasav , April 8, 2010 4:52 AM
    Whoa! When did AMD drop low-k dialectics in? I remember hearing that they were planning a kind of "2-stage" 45nm process, but since I hadn't heard anything more, I figured it had been scrapped.

    Now I'm very interested in Thuban, since it has at least a revised process revision and a turbo, I wonder if there are any more goodies we'll find out. Awesome.
  • 9 Hide
    Shin-san , April 8, 2010 4:55 AM
    I wouldn't be surprised if AMD's first Thuban X4s with Hot and Loud end up being X6s with 1-2 bad cores. This has been AMD's pattern in the past.
  • -2 Hide
    RazberyBandit , April 8, 2010 5:07 AM
    Nice. I really can't wait, and pray that there are no compatibility issues with AM2+ sockets and that all manufacturers get on the ball with proper BIOS updates.

    If they do that, I'll have an excuse to get rid of that dreaded 7850 Kuma in my other system by passing down this "cripple-core" 720 BE to it while I go freakin nuts with a 6 core monster in this machine!


    Chris: Any chance you've gotten word from any manufacturers about what current motherboards will support these, like the one ASUS released? If not, maybe you could urge them to do so?
  • 0 Hide
    AMDnoob , April 8, 2010 5:09 AM
    Does anybody know if Flight Simulator X would use all 6 cores? If a program is labeled as multi-threaded that doesn't necessarily mean it will use ALL available cores does it?
  • 15 Hide
    welshmousepk , April 8, 2010 5:28 AM
    AMD have already said that the leaked pricing is correct, and that their hex-cores WILL be under 300 dollars.

    i don't have the page bookmarked, but i'm sure you guys can find it. not speculation, fact.
  • 8 Hide
    notty22 , April 8, 2010 5:44 AM
    I'm glad to see that AMD is vindicating Turbo technology, that Intel brought to the landscape. Credit to AMD giving the consumer the first semi-inexpensive 6 core. But I know if Intel launched a similar part first, I would see plenty of, "no one needs a 6 core, especially not a GAMER !." Good times ,for enthusiasts!
  • 2 Hide
    tacoslave , April 8, 2010 5:45 AM
    i was waiting for this.
  • 3 Hide
    cangelini , April 8, 2010 5:49 AM
    RazberyBanditNice. I really can't wait, and pray that there are no compatibility issues with AM2+ sockets and that all manufacturers get on the ball with proper BIOS updates.If they do that, I'll have an excuse to get rid of that dreaded 7850 Kuma in my other system by passing down this "cripple-core" 720 BE to it while I go freakin nuts with a 6 core monster in this machine!Chris: Any chance you've gotten word from any manufacturers about what current motherboards will support these, like the one ASUS released? If not, maybe you could urge them to do so?


    Supposedly AM2+ boards will have no problem, but AMD only confirmed that Turbo is supported by AM3!
  • 1 Hide
    noob2222 , April 8, 2010 5:57 AM
    daniel266if just AMD put The "Hyper threading" feature on this cpus im sure it will beat some of the i7 with a price we can afford ..forget 980 ..$1099 price....

    Thats called bulldozer, possible samples q4, production q1-q2 2011. That is unless GF transition to 32 and 22nm goes really well, or really bad.
  • 9 Hide
    gkay09 , April 8, 2010 6:01 AM
    If the X6 can beat the i7 920/ 930 and remain in the same price range, then AMD will have a winner in the enthusiast segment IMO...
  • 1 Hide
    dranicus , April 8, 2010 6:05 AM
    Amd has decided to make their thuban cpu's more efficent with better instructions. This is a great step forward for them. The thuban has been on every enthusiasts mind from amd fans to intel fans. It will be interesting to see how this hexa-core performs.
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