Overclocking B3, a Little Better

Despite the new 50 series CPUs being a new spin of silicon, the only changes AMD made (that we are aware of at least) were to fix the TLB erratum. We were told not to expect any significant increases in clock frequency out of B3, it was simply a functional change. However, with Phenom having been in production for a little while now it's possible that we could get a little more out of our B3 chips than the first Phenom processors we tested late last year.

Using stock cooling on air we wanted to see how things had changed in four months. Armed with our unlocked Phenom X4 9850, we wanted to see what was possible.

We went straight for 2.8GHz at stock voltage, which surprisingly enough POSTed and got us into Windows without any problems. The system wasn't stable enough to complete most of our benchmarks however, we needed to boost the core voltage a bit:

Note that this is better than any of our previous attempts with Phenom. While we could hit 3.0GHz in the past, it was never stable enough to complete all of our benchmarks. While we only had a few hours left over to test the overclocking stability of the 9850 it does look like it may be the first Phenom capable of easily breaking the 2.6GHz barrier.

We aimed for 3.0GHz and while we could get into Windows and run some benchmarks, we couldn't get it 100% stable. In our opinion it's highly unlikely we'll see AMD release a 3.0GHz Phenom on 65nm this year. It may be possible on 45nm but it's still too early to tell if that'll be this year or not.

3.0GHz: Where Are You? Intel's 45nm CPUs: High Prices and Limited Availability, When Will it End?
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  • ap90033 - Thursday, March 27, 2008 - link

    Amen brother, I had the Athlon 64 when it ruled, but now i have E8400 since it smokes AMD's best...

    So I guess I am an AMD/Intel Fan BOY!!!

    No offense but this artlicle had a very strong slant towards AMD, even though Intel destroys their newest and best with a 1+ year old chip. Dont you find that the least bit odd....? If anyone is sounding like a "Fanboy" I would say it would have to be you Mr. Crusader for AMD. LOL

    Dude when you get to where I am you will see, it doesnt matter what the fluff is, get the FACTS and decide with your dollars there... Sheesh...
  • AssBall - Thursday, March 27, 2008 - link

    I thought it was a very well written article. I didn't get any OMGAMDFTW out of it like you apparently did. Your "Man" would not be up already if AMD wasn't still churning these new procs out. Good luck finding those special Intel prices then.
  • Olaf van der Spek - Thursday, March 27, 2008 - link

    > We get the impression that there are some speed paths that could be optimized on the current B2 and B3 Phenoms that simply aren't because of a very sensible thought process.

    I'm wondering why those speed paths haven't been fixed before the first launch. Certainly it wasn't good for AMD to only introduce them at low clock frequencies.
  • Visual - Thursday, March 27, 2008 - link

    It's really disheartening for a "fanboy" like me to see AMD beaten all over the board again.
    I may very well build a system or two with AMD parts because of the 780G chipset and its great budget video performance, but for a full-blown performance system i'll certainly go with Intel now.

    AMD better hurry up with their 45nm tech, its way overdue.
  • Griswold - Thursday, March 27, 2008 - link

    "AMD better hurry up with their 45nm tech, its way overdue."

    You're right, Intel has been selling 45nm parts for like a year now... oh wait, no they havent.

    If you meant overdue as in they need it to (hopefully) achieve higher clock speeds and lower power consumption in addition to lower production cost, then you got that right.

    If they keep their schedule with 45nm, they will have narrowed the gap between process shrinks vs. intel a bit again - which is good. But things like that dont happen overnight.
  • MoonRocket - Thursday, March 27, 2008 - link

    Can anyone identify the case on the 3ghz where are you page?

    Looks interesting.
  • AmberClad - Thursday, March 27, 2008 - link

    It looks like the CoolerMaster Stacker 830 to me.
  • dnz - Thursday, March 27, 2008 - link

    We musn't forget how great an overclocker the Q6600 is. My system is running at 3.2GHz (8x400) and I'm using cheap DDR2-800 RAM. The Q9300 may have some advantages but overclocking it is going to require some VERY expensive RAM.
  • Griswold - Thursday, March 27, 2008 - link

    First you'll need an good mobo that can deliver high FSB for these 45nm quads. RAM is secondary (can always use a divider if needed).
  • ui5200 - Thursday, March 27, 2008 - link


    Maybe this will cause intel to finally release the latest Dual and Quad core chips (oh like the E8400 that's been 'out of stock' for months)? Or is this another paper launch ?

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