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We Overclock Phenom II to 4.9GHz

By , Tuan Ngeuyn - Source: Tom's Hardware FR | B 50 comments

As you know, Tom's Hardware organized it's Overdrive overclocking finals in Paris over the weekend, bringing in teams from all over the world. The competitors benched and tweaked Intel's new Core i7 platform and achieved some significant scores and frequencies. But along side Core i7, wealso had the opportunity to overclock AMD"s new Phenom II. You read that right--the next AMD processor that's expected to launch in January '09.

4,957 MHz

Although AMD says nearly 6 GHz is achievable on the new Phenom II, we were not able to attain that frequency. However, with the helpof Jmax, we managed to reach 4,957 MHz. Remember however, that the 940 Phenom X4 BE II, is running at 3 GHz natively. We ran the processor on a Gigabyte motherboard based on AMD 790GX with DDR2 utilizing a cooling system with liquid nitrogen. At this point, based on what AMD tells us, the processor may have a higher potential, but it has an issue of locking at temperatures below -70 °C. To verify that the processor was stable at 4.9 GHz, we conducted some tests and it completed a SuperPi 1M run in 17,769 sec.

In practice, this new Phenom II in 45 nm seems very capable in terms of overclocking. Judging on what AMD says and how far we were able to push the processor, we're feeling fairly positive about its potential as a mainstream overclocking CPU. Air cooling should prove some interesting results. Look for some upcoming tests soon.

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  • 15 Hide
    LAN_deRf_HA , December 15, 2008 11:23 PM
    Holy mother fucking butt monkeys! There's actually tards out there who think it's a failure because of the superpi score? That's fucking super-tard, get off the enthusiast site noobs. Superpi is strictly an intel extreme overclocking bench, has no bearing on actual performance, it just favors intel's architecture. If that's what you base your cpu purchases on then have fun with your P4. I'm sure you'll be praising it's 1M score as it chokes every card you put in your system.
Other Comments
  • 4 Hide
    seboj , December 15, 2008 8:22 PM
    Did anyone try just air OC first, or did they go straight at the LN2?
  • 2 Hide
    blippo311 , December 15, 2008 8:32 PM
    I heard tha it was just under 4ghz with air.
  • -4 Hide
    htoonthura , December 15, 2008 8:48 PM
    Am i missing sth? almost 18S for crunching 1 M of super pi with a 5ghz cpu? i will pass that.
  • 1 Hide
    Shadow703793 , December 15, 2008 8:51 PM
    ^ Yeah, I noticed that too. i7 I think gets like 7s or so.
  • 3 Hide
    squatchman , December 15, 2008 8:58 PM
    Well you two are just a couple of negative nancys!

    This could still be that Q6600 killer that AMD is hoping for!
  • 1 Hide
    Stone Cold , December 15, 2008 8:58 PM
    Did anyone notice the vcore. 1,8 is huge!!!
    But thumbs up for AMD, and those who OCd it
  • 5 Hide
    hellwig , December 15, 2008 9:06 PM
    squatchmanWell you two are just a couple of negative nancys! This could still be that Q6600 killer that AMD is hoping for!

    Yep. I think the fact that AMD fixed their OC problem is really the point here. Sure, Phenom II is still far behind the Core i7, but its a step in the proper direction. The wrong direction would be like what Intel did with the Pentium 4 back in the day.

    Now if only AMD could figure out how Intel took such an architectural jump over them and rebound. Does anyone have any specs, does this really even compete with the Q6600 as was joked about?
  • -1 Hide
    alvine , December 15, 2008 9:10 PM
    Correct me if im brong but it seems PhenomII @4.9ghz is two second slower in SuperPi...? I got 16sec on 1mb file :p  I thought at those speeds PhenomII will be much faster lol

  • 4 Hide
    megamanx00 , December 15, 2008 9:11 PM
    I don't think AMD is out to displace the i7 right now. They are aiming at the Core 2 series. If they can manage to place themselves between the Core 2s and i7s then they may be in good shape. We'll have to wait and see.
  • 6 Hide
    smithereen , December 15, 2008 9:40 PM
    SuperPi is not core optimized, and has favored Intel architecture since the Athlon 64 days.
  • 3 Hide
    seboj , December 15, 2008 9:40 PM
    Megamanx00I don't think AMD is out to displace the i7 right now. They are aiming at the Core 2 series. If they can manage to place themselves between the Core 2s and i7s then they may be in good shape. We'll have to wait and see.


    Exactly. The idea for AMD is to become the mainstream while Core i7 is still in its enthusiast stage. It'll be a huge benefit for them if they can outpace Core 2 in the months leading up to i7 becoming mainstream.
  • 1 Hide
    the last resort , December 15, 2008 9:46 PM
    LOL my SUPERPI time on my 6000+ stock was 29 seconds. depressing

    although it seems that Tom's was doing something different than AMD for overclocking since AMD managed 6+ GHz on 1.9Vcore? Although either way, I'd like a quad and 3 GHz is definitely a plus.
  • 5 Hide
    timaahhh , December 15, 2008 9:56 PM
    smithereenSuperPi is not core optimized, and has favored Intel architecture since the Athlon 64 days.


    +1
  • 2 Hide
    Anonymous , December 15, 2008 10:02 PM
    anyone else notice that the picture at which the time was taken says the clock was only @ 4ghz?

    http://www.tomshardware.com/gallery/4gopti,0101-172207-0-2-3-1-png-.html

    So at 4ghz it got 17.769 seconds the multiplier is only at 20x on the picture that shows the pi calculations when the 4.9ghz is at 24x
  • -6 Hide
    navvara , December 15, 2008 10:30 PM
    My pentium dual core @3.0 ghz runs super pi 1M in 20 seconds. I'll pass on phenom II.
  • -6 Hide
    timaahhh , December 15, 2008 10:31 PM
    Indeed.
  • 8 Hide
    Anonymous , December 15, 2008 11:02 PM
    SuperPi only uses 1 core and is optimized for Intel CPUs. It's also not the end-all, be-all of benchmarks by a long shot. In most real-life application benchmarks involving number-crunching, AMD has historically been better than Intel clock-for-clock. Mind you, I haven't seen the benches for Shanghai vs. Nehalem.

    BTW, my Xeon E3110 @ 3.87 GHz does it in 16 seconds, but the current Phenom X4 9950 BE @ 3.4 GHz kicks its ass in anything multithreaded and certain applications, plus it seems quicker for basic functions in Vista.
  • 15 Hide
    LAN_deRf_HA , December 15, 2008 11:23 PM
    Holy mother fucking butt monkeys! There's actually tards out there who think it's a failure because of the superpi score? That's fucking super-tard, get off the enthusiast site noobs. Superpi is strictly an intel extreme overclocking bench, has no bearing on actual performance, it just favors intel's architecture. If that's what you base your cpu purchases on then have fun with your P4. I'm sure you'll be praising it's 1M score as it chokes every card you put in your system.
  • 3 Hide
    frankscastle , December 15, 2008 11:37 PM
    I think some people are seeing the big picture. Yes it is too early to say anything about AMD's new chip. Real world numbers will mean more then overclock numbers. But price is going to be the big factor. If they are going to charge $300 bucks for a PhenomII then AMD is just going to hurt itself.
  • 1 Hide
    chookman , December 15, 2008 11:47 PM
    squatchmanWell you two are just a couple of negative nancys! This could still be that Q6600 killer that AMD is hoping for!


    Q6600 killer? Intel is set to make the Q6600 EOL 1H 2009... i wanna hope its a helluva lot better than Q6600 a new AMD cpu competing with an EOL cpu from intel yay... NOT
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