Windows 8: Does AMD's Bulldozer Architecture Benefit?

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Shortly after AMD's Bulldozer architecture launched, AMD had us anticipating a couple of hotfixes that were supposed to improve FX-8150's performance. But Windows 8 was the ultimate goal. Now that the operating system is out, does it help FX-8150?

Benchmark Results: Audio And Video Encoding

Remember when we saw Acrobat X demonstrate the best performance under Windows 8 and the Bulldozer-optimized Windows 7 setup? Well, this time around, the single-threaded iTunes and Lame workloads favor Windows 8 exclusively. In searching for an explanation, one possibility springs to mind. Previous versions of Windows had a habit of bouncing threads from one core to another. If Windows 8 more effectively keeps threads on one core, alleviating the need to wake powered-down resources, perhaps it's able to affect single-threaded tasks more than we thought.

HandBrake and MainConcept fully-tax the FX-8150's four modules. So, we wouldn't expect either application to serve up a speed-up attributable to better scheduling.

Thomas Soderstrom
Thomas Soderstrom
Thomas Soderstrom is a Senior Staff Editor at Tom's Hardware US. He tests and reviews cases, cooling, memory and motherboards.
109 Comments Comment from the forums
  • agnickolov
    Of particular interest to me is that compilation with Visual Studio does slow down a bit on Windows 8. Not what the story was about, but still a valuable tidbit...
    Reply
  • boogien8
    LOL awesome! the last line of this review is epic!
    Reply
  • mayankleoboy1
    O MY GOD ! 2% win for AMD ! I knew Win8 would be the holy grail of BD/PD.

    /s
    Reply
  • DjEaZy
    ... gonna get me a FX 8350 anyway... it's cheep as dirt and i have the platform...
    Reply
  • Crashman
    boogien8LOL awesome! the last line of this review is epic!That last line is the result of AMD creating unrealistic expectations for Windows 8. Things have gotten somewhat better for AMD since Piledriver launched, it's too bad that this article was written before that launch :)
    Reply
  • amuffin
    !Hype!
    Reply
  • silverblue
    I wouldn't mind seeing if, with Windows 8 and the 8350, hardware can take full advantage of the software instead of the other way around. I was a little dubious about blaming Microsoft in the first place - this isn't quite the Vista scheduler and Phenom all over again.

    Good article. :) It does seem that the patches create more problems than they solve, so I'd be inclined to ignore them if I had an FX on Windows 7.
    Reply
  • esrever
    Nice to see this finally tested, looks like the performance boost isn't significant enough to matter but at least there is a 1% increase. AMD can use all the minor performance boost they can get at this point.
    Reply
  • belardo
    Throw in the Intel i5-3550 and 3570K CPUs with Win7 and Win8 and see what the numbers say... wouldn't that be fair to see the difference as well?

    DjEaZy... gonna get me a FX 8350 anyway... it's cheep as dirt and i have the platform... Yeah, if you already have the board and memory, its mostly logical. But for someone going for a rebuild... it is not, especially if you live near a Microcenter.

    I paid $190 for my i5-3570K CPU, $90 for my Z77 gigabyte motherboard which out-does AMD 900 Series boards. Z77 have native USB 3.0, SATA 3.0, PCIe 3.0... AMD doesn't have PCIe 3.0 until 2014. And unless you get an A-Series CPU, you don't have native USB 3.0 either.

    This, an AMD boards are a bit more costly and more complicated.

    The OTHER AMD problem is that they are packaging clean CPU coolers with their CPUs... they are loud!! So add $25 for a good replacement. The extra costs for electricity doesn't help.

    Reply
  • 9538570 said:
    Nice to see this finally tested, looks like the performance boost isn't significant enough to matter but at least there is a 1% increase. AMD can use all the minor performance boost they can get at this point.
    The Emperor's New Clothes
    Reply