Audio Performance

We limited audio testing to the Rightmark 3D Sound version 2.1 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.

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

As you can see, none of the onboard audio solutions were quite as low overall in CPU utilization as the Creative Audigy 2ZS solution. The Asus P5N32-SLI Deluxe uses the Realtek ALC850 AC97 codec while the Intel based systems utilize the Realtek High Definition Audio ALC880 and ALC882m codec's. The current Realtek HD R1.26 driver release limits the 3D sound buffers to a maximum of 32. The revised R1.26 driver release reduced CPU utilization by up to 38% compared to the R1.20 release that was originally tested utilizing the ALC882m on the Gigabyte GA-8I955x Royal.

Audio Performance - DirectSound 3D EAX - BattleField 2

Audio Performance - DirectSound 3D EAX - Splinter Cell Chaos Theory

Audio Performance - Wolfenstein - Enemy Territory - Radar Demo

Audio Performance - DirectSound 3D EAX - UT2004 - UTBench Demo

Audio Performance - DirectSound 3D EAX - F.E.A.R. - Performance Test

The Battlefield 2 numbers are very interesting as the Realtek ALC850 audio solution creates a 12% loss in frame rates. Compare this a to 67% loss when utilizing the Realtek ALC88x audio solution in this highly popular on-line game in which sound is as critical as frame rates. We tested the results several times and came to the same conclusion each time after the benchmarks were completed. We have added 640x480 scores to reduce CPU and GPU utilization with the numbers still reflecting a 55% decrease in frame rates. We will be further investigating this issue in the near future as the results are not as dramatic in other games. Splinter Cell Chaos Theory has an average loss of 10%, Wolfenstein Enemy Territory at 10%, UT2004 at 29%, and F.E.A.R. at 8%. Obviously, if you are a serious gamer, then a dedicated sound card is a requirement to ensure frame rate averages across a wide variety of games. We will be reviewing additional sound card results in our next article.

While the Realtek ALC850 codec offers acceptable CPU usage and sound for most office applications or Internet based flash games, it is not competitive in audio quality with the ALC88x on-board audio solutions. In fact, the ALC88x audio solution displayed excellent sound characteristics in music, video, and games throughout our testing and should seriously be considered as the main audio component in a value based system if gaming is not your top priority. Specifications for the Realtek ALC88x audio family can be located here .

Ethernet Performance Final Words
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  • Houdani - Tuesday, November 15, 2005 - link

    My approach is not backwards in the least. It's mainstream. And I do support the status quo because it's not broken. Your argument is that you want to see how sound affects gameplay ... period. For that, you should go read soundcard reviews.

    If you are arguing that CardB will suffer more than CardA due to the sound solution, then clearly I've missed something significant!
  • yacoub - Tuesday, November 15, 2005 - link

    quote:

    Your argument is that you want to see how sound affects gameplay ... period

    No, not "period". At all. I want to see real world tests of GPUs so I can see how ALL expected impacts during gaming affect the latest and greatests GPUs, especially in light of conclusions in many reviews pointing out that "buy the best GPU you can afford" is the answer for gamers and GPUs are the most expensive piece of equipment in most cases since $200 CPUs can are enough for most cases.

    It's necessary to know if, in light of the real world impacts like sound processing, that X800XL that looks like it can push enough fps in the GPU-exclusive testing done on it, actually falls beneath a playable threshhold in your machine at the games/resolutions/graphical settings the review showed to be fine. A 15fps difference is clearly HUGE (especially when most cards reviewed are pushing 30-50fps in most tests) and can EASILY push a seemingly sufficient card into the slideshow/stuttering realm of "holy crap that review screwed me big time. I should have sacrificed the extra $50 to jump up to CardB". If anything these dick-waving reviews are HARMFUL to actual consumers concerned with upgrading their gaming rigs as opposed to techies simply interested in reading about the latest GPU, because many of them don't even mention that sound is off and why that can have a big impact on the actual gaming performance of the card. They might waste time and money on an upgrade because the review data was worthless compared to how it actually performed in their system.

    Food for thought.
  • MadAd - Tuesday, November 15, 2005 - link

    This is a mobo review and OB sound is on mobos so it has a place being tested here, not on GFX cards.

    In the context of current reviews, you want a change to the established way of doing things so that some finite aspect of sound card performance can be included, thats your opinion and fair enough you can have it. However rather than argue that the (perfectly good for most) system should be changed, instead why dont you ask the AT reviewers for a comparitive system review including sound?

    If its worthwhile doing im sure one of the reviewers would agree, perhaps a few other readers would back you up if they think it would make a difference however I'm in the 'keep the status quo' camp so am biassed thinking its really not worth the time when it can be predicted from seperate reviews.
  • yacoub - Tuesday, November 15, 2005 - link

    Here's a vague comparison: Measuring automobile horsepower at the crank instead of the wheels - it ignores drivetrain loss and isn't as accurate a measurement. This is why the industry recently mandated a revised rating system. Yes, most cars will now market a must lower (but more accurate) number for their horsepower rating.

    The GPU review industry needs to start doing the same thing. Give more accurate numbers so the consumer is better infomred and can actually use the reviews to make a solid purchase decision. After all, that's what reviews started out to do years ago - help consumers understand the features of new hardware AND how they actually performed playing the games people played, so people could decide what the best upgrade strategy would be for their system based on worthwhile data.
  • TheInvincibleMustard - Tuesday, November 15, 2005 - link

    I saw that graph with min/max/average framerates! Woohoo! Convince others to implement that as well, especially in video card reviews (*cough*7800 GTX 512*cough*) :D

    It's a shame that the Foxconn only goes up to 1.9v, as everything else about the board seems really decent ... is there word from Foxconn that this might be possible to fix in a future BIOS upgrade, or is it a hardware-specific issue?

    -TIM
  • Gary Key - Tuesday, November 15, 2005 - link

    quote:

    It's a shame that the Foxconn only goes up to 1.9v, as everything else about the board seems really decent ... is there word from Foxconn that this might be possible to fix in a future BIOS upgrade, or is it a hardware-specific issue?


    The board is very solid, has an excellent price point, and we are hoping Foxconn will implement further changes in their bios in the near future. I will update the article if we receive a new one.
  • Furen - Tuesday, November 15, 2005 - link

    You know you don't have to throw a long quote at the beginning of each article, right? I mean, it seems a bit excessive... like you're trying too hard to link the article to the grand scope of human life. We all appreciate an article's technical merits (this is a tech site, after all) but reading a piece of philosophy or literature at the heading kind of grows old after one or two times (dare I say, it reminds me of Omid at THG and his latin-infused writings so many years ago). I'm not complaining about the article, by the way, maybe I'm just being anal...
  • Kensei - Friday, November 18, 2005 - link

    I'm way late to this party but here goes anyway. I couldn't disagree more. It makes for much more interesting reading and the linkages to literature are a very minor part of each article. As I've said before, Gary is an extremely talented writer and others should be learning from his example. I strongly feel that people with strong technical interests need to spend time in other pursuits to make them more well rounded persons. I could write a book on the people I've met who possess great technical knowledge but it does them little good because they lack the interpersonal and communication skills to convey it to any other carbon-based life form.

    So dust off that copy of Jane Austin's Pride & Predjudice in your sister's room and see how the other half lives..... OK.... just go see the movie.

    Kensei

  • Gary Key - Saturday, November 19, 2005 - link

    quote:

    So dust off that copy of Jane Austin's Pride & Predjudice in your sister's room and see how the other half lives..... OK.... just go see the movie.


    I appreciate your comments and you made my evening. My sister was named after Elizabeth although she acts more like Mr. Darcy in real life. I might just pull out the 1996 BBC rendition (reminds me of my Rendition Verite based Reactor 3D card I found recently) and view it over the holidays. :) :) :) :)
  • Gary Key - Tuesday, November 15, 2005 - link

    quote:

    I'm not complaining about the article, by the way, maybe I'm just being anal...


    I appreciate the feedback. I flip flop at times about the quotes myself but figured it would provide a difference in the article besides starting out with same, "Intel introduces the 945P, a chipset that is very good, and is in three boards today....", syndrome. However, I can see your point where it can grow old after a few times also so maybe we should mix it up at various times. ;->

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