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-660 HD audio codec was tested with the recently released 1.31 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 HDA Mystique 7.1 and Creative Labs Sound Blaster X-FI cards in the benchmarks. The Realtek OpenAL 1.1 driver increases CPU utilization up to 20% more than the Realtek DirectSound drivers.

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-660 HD audio codec has average CPU utilization rates with reductions of up to 4% in the 3D tests compared to the previous driver release. The HDA Mystique 7.1 Gold has the highest overall utilization rates of the audio solutions tested, but its scores improved up to 20% with the last driver release. BlueGears is no longer supporting the card directly, but HDA continues to offer support. The Realtek ALC-660 performance is equal to the ALC-850 (driver set 3.82, 26 Hardware Buffers available) and offers significantly better audio quality. The Sound Blaster X-FI has the lowest overall rates as expected. Let's find out how these results translate into real world numbers.

Game Audio Performance - Serious Sam II - Branchester Demo

Game Audio Performance - BattleField 2

Game Audio Performance - Splinter Cell Chaos Theory

Game Audio Performance - Call of Duty II - Demo 5

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

The audio performance numbers remain consistent as the Realtek ALC-660 continues to finish behind the HDA Mystique 7.1 and SoundBlaster X-FI. Serious Sam II suffers an incredible loss of 43%, Splinter Cell at 2%, Battlefield 2 at 28%, Call of Duty 2 at 5%, and F.E.A.R. at 4%. The output quality of audio with the Realtek ALC-660 is very good and continues to improve with each driver release. The majority of users should have no issues utilizing the ALC-660 as the primary audio solution, considering the overall quality of audio and performance at this time.

However, if you are a serious gamer, then a dedicated sound card is still a requirement to ensure consistent frame rate averages across a wide variety of games. We noticed in previous testing of our Battlefield 2 and Half Life 2 benchmarks that the Realtek HD audio codecs would cause stuttering in intensive scenes. The 1.31 driver release has now eliminated all stuttering in our current benchmarks while improving performance across the board except in Serious Sam II. We did not notice the same performance degradation in Serious Sam II with the 1.31 driver set and the Realtek ALC-882 codecs on the Intel chipset boards. We are still investigating this issue.

The Realtek driver installation installs a basic control panel that features a built-in 10-band equalizer along with the standard mixer and speaker controls. We found the control panel to be user friendly and a definite improvement over the standard windows audio properties application.

Ethernet Performance Final Words
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  • Zoomer - Tuesday, March 7, 2006 - link

    I believe it should be included to comparison's sake. And perhaps push manufacturers to adopt it.

    If new HD camcorders supports firewire 800, the market will be there right away. Too bad they aren't backward compatible.
  • deathwalker - Thursday, March 2, 2006 - link

    At $85 I don't see how anyone could ask for much more in a motherboard...SLI/eSATA//8 channel sound/varity of Raid array choices. Can't hardly beat this for a basic and even higher platform. Kadoos to Asrock for a worthy effort. Before this thread is over someone will be slamming this mobo from some position other than one of using a rational approach for what you would be getting for $85 and they will be trying to compare it to a competetors $150 motherboard. AT..keep up the good work.
  • Pete84 - Thursday, March 2, 2006 - link

    The Asrock AM2 riser has been spied.

    http://www.hkepc.com/bbs/blog.php?tid=558875&s...">http://www.hkepc.com/bbs/blog.php?tid=5...time=114...
  • poohbear - Thursday, March 2, 2006 - link

    Just remember ASRock is a dodgy mobo company. In their Dualsata2 mobo they gave reviewers a bios that allowed em to overclock using the 300mhz cpu frequency then they cap it @ 274 in subsequent bios'. Meanwhile, us customers read the reviews and their site/manual which states it can support a 300cpu frequency only to find a a 274mhz cap. Very deceptive of em. The dual sata2 was the only mobo that provided native agp and pci-e, so ASRock got away w/ dodgy BS like that cause there was no other company offering the Uli1695 chipset.

    In this situation, there are a ton of other exceptional PCI-E mobos, especially w/ ATI's 580 just being released, so why even consider em?!
  • sandorski - Thursday, March 2, 2006 - link

    that's not what happened. go back and re-read what that was about.
  • Gary Key - Thursday, March 2, 2006 - link

    quote:

    Just remember ASRock is a dodgy mobo company. In their Dualsata2 mobo they gave reviewers a bios that allowed em to overclock using the 300mhz cpu frequency then they cap it @ 274 in subsequent bios'. Meanwhile, us customers read the reviews and their site/manual which states it can support a 300cpu frequency only to find a a 274mhz cap. Very deceptive of em. The dual sata2 was the only mobo that provided native agp and pci-e, so ASRock got away w/ dodgy BS like that cause there was no other company offering the Uli1695 chipset.


    I would not consider ASRock a dodgy motherboard company. We at times find the initial bios releases to contain performance enhancements or features that might not be available upon production release of the boards. We (along with others) provide feedback to the manufacturers about the stability, features, or performance during testing. At times this feedback will cause the manufacturer to change the bios features to improve stability or as in our Biostar NF4 article to improve performance also.

    We are taking a more serious stance with the motherboard companies in regards to their bios features before publishing an article. We could have published this article with the .17 bios release (not available) and shown additional voltage features along with improved performance as mentioned in the article. We waited until ASRock had the production release bios available before publishing our revised test results. We found the board to be better behaved with the release bios at the expense of performance. However, this the correct path as being able to score a few additional points in a benchmark or overclocking that extra bit is not important if the board produces BSOD results on a consistent basis. It also is not wise to release a bios with features the public will never see. I personally still have issues with Asus and the 0047 bios we tested on the P5N32-SLI board. Some of the features of that bios are still not available at this time and it is worrisome to publish an opinion about a board and not see the same level of performance or stability in the released product.

    While there are other alternatives (excellent ones at that) I doubt you will find a board with this combination of performance and features for $85. If you are hard core overclocker this is not the board for you. If you like to casually overclock without pushing the boundaries then this board will suffice for a great number of people. It is all about choices and fortunately we will see some additional M1697 based boards before NVIDIA completes their assimilation of ULi. ;-)
  • poohbear - Thursday, March 2, 2006 - link

    quote:

    We are taking a more serious stance with the motherboard companies in regards to their bios features before publishing an article.


    that's definetly good to hear. it's blatantly unacceptable when mobo manufacturers want to promote something that is'nt in their mobo so they can get good initial reviews and hence sell more, and then disable said feature when it becomes inconvenient to support. (the Dualsata2 still proports to support 300 cpu frequency both on ASRock's site and in their online manual, but it's simply not supported)
  • nemesismk2 - Friday, March 3, 2006 - link

    You have said a couple of times that on the Asrock website it states that the Asrock 939 Dual Sata2 supports 300 Mhz CPU Frequency, can you tell me where because I can't find anywhere on http://www.asrock.com/product/939Dual-SATA2.htm">http://www.asrock.com/product/939Dual-SATA2.htm which confirms what you have been saying?
  • nemesismk2 - Thursday, March 2, 2006 - link

    Asrock are NOT a dodgy company at all, they are just a company who supply good quality budget motherboards which are not designed for overclocking. Yes it was found that the motherboard could use 300mhz cpu frequency with an early bios but it was also found that the motherboard wasn't stable using that frequency so it was reduced for stability reasons. I've never had any stability problems with my Asrock 939 Dual Sata2 so their decision was correct for most users, good work Asrock! :)
  • poohbear - Thursday, March 2, 2006 - link

    ppl w/ beta bios were running this mobo 350+ cpu frequency, so how can u say it's not stable? they're just not fixing it because, yes, they could care less about anybody who overclocks, but they shouldnt give the impression that this mobo supports something it doesnt. For all we know anandtechs overclock w/ this mobo might be completely misleading because ASRock might do the same thing and disable any such features when it's inconvenient for them to support em.

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