Audio Performance



We limited audio testing to the Rightmark 3D Sound version 2.2 CPU utilization test and tested with sound enabled to show the performance effects on several games. The Rightmark 3D Sound benchmark measures the overhead or CPU utilization required by a codec or hardware audio chip.

The Realtek ALC-880 HD audio codec on the AOpen board was tested with the recently released 1.36 driver set. The Realtek DirectSound audio drivers do not support more than 32 hardware buffers and the OpenAL 1.1 drivers do not support more than 30 hardware buffers at this time so the scores cannot be directly compared to the Creative Labs Sound Blaster X-Fi cards in the benchmarks.

It is interesting to note the reduced CPU utilization with the Core Duo or Opteron 165 as the load is balanced between each processor with the Realtek 1.36 drivers and the Creative drivers to a certain extent. However, these CPU utilization rate improvements with the dual-core setup does not have any bearing on actual game benchmarks as the reduction in frame rate percentages are the same as our single core score.

Audio Performance - Empty CPU - 32 Buffers


Audio Performance - 2d Audio - 32 Buffers


Audio Performance - DirectSound 3D HW - 32 Buffers


Audio Performance - DirectSound 3D EAX2 - 32 Buffers


The Realtek ALC-880 codec offers very competitive CPU utilization rates when compared to the Realtek ALC-882 on the Asus board. The ALC-880 generates significantly better audio quality than the AC97 based systems and very similar audio quality to the ALC-882 solution. The ALC-880 was released before the ALC-882 but has nearly the same audio quality and performance in our testing. Our subjective headphone testing revealed a slight difference between the two codecs, with the output from the ALC-882 sounding clearer in the treble and mid-range tones. However, the difference was negligible when utilizing our 4, 5.1, or 7.1 speaker setup in a typical room environment. The Sound Blaster X-Fi has the lowest overall CPU utilization (single core systems) with the ALC-880 and the ALC-882 following closely. Let's find out how these results translate into real world numbers.

Game Audio Performance - BattleField 2


Game Audio Performance - F.E.A.R. - Performance Test


Game Audio Performance - Serious Sam II - Branchester Demo


The audio performance numbers remain consistent as the Realtek ALC-880 consistently finishes near the SoundBlaster X-Fi in the benchmarks. Serious Sam II has an average loss of 37%, Battlefield 2 at 28%, and F.E.A.R. at 2%. F.E.A.R. is extremely GPU limited so the CPU has additional cycles to generate the audio streams required by the Realtek drivers.

The overall output quality of audio with the Realtek ALC-880 ranks with the ALC-882/883 series as the best of the on-board HD audio solutions we have heard to date, while performance continues to improve with each driver release. The vast majority of users should have no issues utilizing the ALC-880 as their primary audio solution considering the quality of audio and performance at this time in most applications.

Obviously, if you are a serious gamer, then a dedicated sound card is still useful to ensure consistent frame rate averages across a wide variety of games, and in the case of the Sound Blaster X-Fi, you also get improved audio quality and EAX3/4/5 support. If you'd like more details on the Realtek solution, you can refer to the Realtek ALC-880 Specifications.

Firewire, USB and Network Performance Final Words
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  • Gary Key - Friday, May 5, 2006 - link

    quote:

    For example the FX57 with the AGEIA PhysX Hardware, not that it was a bad choice but the only used in the review...


    The card was delievered over the weekend, Derek only had a couple of days and nights to test it. He will be expanding upon this article in the near future as more games are launched with support, not to mention all of our test platforms will undergo a radical change here shortly. ;-)
  • goinginstyle - Thursday, May 4, 2006 - link

    quote:

    I was on my Herman Miller Mirra for about 140 hours while completing this article. :)


    Best quote of the day. Ignore that guy as he is just a tool or had his first visit on a computer today.
  • ShapeGSX - Thursday, May 4, 2006 - link

    This is a server chip vs a laptop chip. If anything, the AMD server chip had the upper hand in this review, and the little Intel laptop chip bested it in almost every category.

    Though, technically the review was a review of the motherboard, not the CPUs, I think it speaks volumes as a comparison of the K8 vs the Yonah architecture given the identical clocking used.
  • Frumious1 - Thursday, May 4, 2006 - link

    "If anything, the AMD server chip had the upper hand in this review."

    Again with the reading comprehension! Look at the chart for Christ's sake. Notice that a bunch say "lower is better"? At 2.8 GHz, the Core Duo sweeps the tests - only in disk controller performance could you potentially level a complaint. At 1.83 GHz, it's a bit closer, but to say the Opty has the upper hand?

    http://www.anandtech.com/mb/showdoc.aspx?i=2750&am...">http://www.anandtech.com/mb/showdoc.aspx?i=2750&am...
    Moderate to substantial wins by Core Duo across the benches.

    http://www.anandtech.com/mb/showdoc.aspx?i=2750&am...">http://www.anandtech.com/mb/showdoc.aspx?i=2750&am...
    More ties or wins for Core Duo.

    http://www.anandtech.com/mb/showdoc.aspx?i=2750&am...">http://www.anandtech.com/mb/showdoc.aspx?i=2750&am...
    Opty wins in Nero Digital Audio... which I have never even used or seen as a benchmark. One win for Opty 165! Woohoo! AMD Rules!

    http://www.anandtech.com/mb/showdoc.aspx?i=2750&am...">http://www.anandtech.com/mb/showdoc.aspx?i=2750&am...
    More substantial losses in file compression.

    http://www.anandtech.com/mb/showdoc.aspx?i=2750&am...">http://www.anandtech.com/mb/showdoc.aspx?i=2750&am...
    It loses every gaming test by a reasonable margin, with or without CrossFire.


    ONE win for AMD at 1.8 GHz, and that's in Nero Digital Audio. A few ties, but otherwise AMD loses. Boy, I can't imagine why AnandTech would do an article like this. I mean, Intel managing to win almost every benchmark is old news! I remember Pentium II/III spanking K6/K6-2/K6-3 ages ago. Looks like nothing has changed... except for the whole K8 vs. NetBurst era where Intel got the shit kicked out of it!

    Intel looks primed to take back the performance lead. I've been running lots of AMD K8 systems for the past 3 years, but it looks like I will now have a serious reason to consider Intel again. (Before K8, I ran mostly K7 setups. Before that I was always running Intel because they were better. Notice the pattern? Buy the BEST chip, regardless of who makes it!)
  • Calin - Friday, May 5, 2006 - link

    What is sad for AMD is the fact that the Intel chip is advantaged by frequency increase. At 1.8GHz, they are more or less at a tie (with few not-so-great exceptions), and the increase in frequency to 2.8GHz favors Intel much more than AMD.
    So, overclockers would choose the chip that will give them a bigger increase in performance for the same increase in MHz (Intel). The situation changed from the Athlon64 versus Prescott days.
  • Gary Key - Thursday, May 4, 2006 - link

    quote:

    "If anything, the AMD server chip had the upper hand in this review."


    His context was in the positive, meaning the AMD had the upper hand going into the review but was outperformed in several areas.

    :)
  • ShapeGSX - Thursday, May 4, 2006 - link

    Indeed it was meant to be positive. Thanks!

    Laptop cpus beating server cpus, dogs and cats living together!
  • Frumious1 - Thursday, May 4, 2006 - link

    I'm not sure what you read, but I saw a review in which a ~$590 Core Duo + AOpen board was able to basically match a ~$550 Opteron 170 + ASUS board in performance. What exactly don't you like - the fact that Core Duo overclocks more than 50% on the board? Or the fact that Athlon X2/Opteron doesn't win every benchmark?

    Thanks for being such a retard. FYI, Intel doesn't want this type of review, because AT is basically promoting buying their $240 CPU and overclocking rather than buying their $600 CPU. Let me rephrase your post:

    ANANDTECH
    In this review, we'd like to show your how an "Athlon FX-62" compares to a 2.8Ghz Core Duo.

    ..."As you can see, the Core Duo actually beats the FX-62 equivalent on just about every fucking benchmark. AMD's former monster has been humbled, and it looks like the stupid ass AMD fanboys like snorre need to stop snoring and brush up on their god damned reading comprehension! If that's not enough, Core Duo will add another 25-40% performance clock for clock over Core Duo (see Johan's article). Needless to say, even the best AMD is prepared to offer looks to be in serious trouble."

    Don't let the door hit your ass on the way out. Comparing this to a THG article is an insult to both parties. THG would have used more hyperbole and run fewer benchmarks, while AT wouldn't accept large cash payment to do an article. Go back to whatever black ole you crawled out of. PLEASE!

    BTW thanks for proving that no matter how good an article is some stupid shit will wander in and bitch about the results. "OMG my eyes! I can't look at a graph and stand to see AMD lose!" The Greater Internet Fuckwad Theory has been proved yet again. (Google that if you don't get the reference.)
  • JarredWalton - Thursday, May 4, 2006 - link

    I think I see the problem, frumious. You used some odd text in your post and it killed the colors.
  • JarredWalton - Thursday, May 4, 2006 - link

    Note to others: don't use the abbreviation for HardOCP. LOL

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