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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  • chesss - Tuesday, March 7, 2006 - link

    quote:

    . We also have to wonder about the inclusion of the AM2 CPU upgrade slot that seems more like a marketing gimmick than something that will be useful in the future.
    hmm I was hoping for a more definite answer from anandtech about this. Anybody else?
  • Gary Key - Tuesday, March 7, 2006 - link

    What type of information are you looking for at this time? We have seen prototype AM2 daughter cards but have not been able to test a card yet due to ongoing engineering changes. Although the daughter card will have direct HT access through the M1695 chipset, we have to wonder how well ASRock will be able to optimize the DDR2 memory performance. The daughter card will also limit cooling options available for the CPU choice. The other variable will be cost and if you are upgrading to AM2 then the additional cost of a motherboard in this category should not be an issue. When all is said and done we still think this is a marketing driven feature and not a viable engineering solution for most users.
  • itroxx - Wednesday, March 8, 2006 - link

    Hello everybody,

    I'am also looking for a new system for mainly video editing. Working with Premiere, MPEG2 encoding and DVD authoring. Thats why I found this review cause the AsRock seems the only board available with SATA2-Raid capabilities right now. But I am not sure about how much SATA2 drives can be attached. Is it possible to attach one SATA2 drive for the system and build a Raid0 of two more SATA2 drives? For what reason are the SATA connector on the rear panel?

    The components I've selected at this point are

    AMD Athlon64 X2 3800+ 2x2000MHz 2x512kB Box E4-Stepping
    Asrock 939SLI32-eSATA2 S939 ATX
    2x 1024 Corsair DDR400
    1x Samsung 80GB SATA2 (System)
    2x Samsung 250GB SATA2 (Raid0)
    256MB PCIe x16 ATI RADEON X1300 PRO

    What do you think of my selection? What type of power suply do I need?
    Is 400 Watt enough?

    thanks a lot and greetings from germany
    Daniel
  • Redrider - Thursday, March 9, 2006 - link

    Although my expertise is much lower than most of the people on this forum, there are a few things I have gleaned from my experience and research. Here are a couple of suggestion:

    You want the best you can get for the money you spend so as for the processor (I am seriously considering an X2 3800+ myself) I would go for the http://www.amdcompare.com/us-en/desktop/details.as...">ADA3800DAA5CD
    which has the E6 stepping which is a newer revision based on http://www.techpowerup.com/articles/overclocking/2...">this article

    Also, I would boost your power supply. You are spending some serious cash and I don't think skimping on the PS is wise. 400W seems pretty small and I would go with big power overhead just to be sure.
  • UJMA - Saturday, March 4, 2006 - link

    The people who invariably buy SLi enabled boards are gamers, and gamers love to OVERCLOCK! unfortunately Asrock have provided this board with a feeble set of voltage options, both the Vdimm & Vcore voltage options are pathetic. No problem, if you're handy with a soldering iron as I'm pretty sure some voltage mods will eventually show up for entusiasts. Probably a better option would be to wait for Epox to launch their new EP-9U1697 GLI mobo based on the same ULi M1697 chipset, you'll get SLi with better overclocking options for a similar outlay!
  • Gary Key - Saturday, March 4, 2006 - link

    quote:

    Probably a better option would be to wait for Epox to launch their new EP-9U1697 GLI mobo based on the same ULi M1697 chipset, you'll get SLi with better overclocking options for a similar outlay!


    We just happen to have that board available for testing now. :)
  • UJMA - Friday, March 24, 2006 - link

    2 great reviews on boards using the ULi M1697 chipset. In the red corner we have the Asrock 939SLI32-eSATA2, in the blue corner we have the EPoX EP-9U1697-GLi ... I'm going for the Epox board.
  • Wesley Fink - Saturday, March 4, 2006 - link

    Keep in mind the Epox is dual x8 using a single M1697 chipset, while the ASROCK is an amazing dual x16. If dual x8 is enough for you though, the Epox should be an interesting board.
  • UJMA - Saturday, March 4, 2006 - link

    I was looking at the Epopx website specs ...

    "Two PCI Express (x16) connector compliant with PCI Express 1.0a"

    http://www.epox.com.tw/eng/products_content.php?ps...">http://www.epox.com.tw/eng/products_content.php?ps...
  • Gary Key - Saturday, March 4, 2006 - link

    There are two physical x16 connectors on the Epox board but they are electrically x8 lanes in SLI mode. The ASRock 939SLI32 has the same physical x16 connectors but electrically they are x16 lanes in SLI mode.

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