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 in CPU utilization as the Abit AudioMAX 7.1 solution. The Asus P5N32-SLI Deluxe uses the "almost standard" Realtek ALC850 found in most high end NVIDIA AMD SLI systems. The current NVIDIA driver release limits the 3D sound buffers to a maximum of 48 compared to 25 with the RealTek drivers. It also indicates support for OpenAL with full EAX2 compatibility. However, Quake 4 refused to recognize the OpenAL support and would not allow sound in the game. The current RealTek A3.76 release does not include OpenAL support. We will be updating our test results for the RealTek ALC850 based boards with the newly released A3.78 drivers shortly and providing F.E.A.R. results.

Audio Performance - DirectSound 3D EAX - BattleField 2

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

Audio Performance - Wolfenstein - Enemy Territory - Radar Demo

The Battlefield 2 numbers are interesting as the Asus P5N32-SLI Deluxe implementation of the Realtek ALC850 sound solution creates a 12% loss in frame rates. This compares to 27% on the Gigabyte GA-8N SLI Quad in this highly popular on-line game in which sound is as critical as frame rates. Splinter Cell Chaos Theory has an acceptable loss of 6%, but Wolfenstein Enemy Territory loss is close to 13%. Obviously, if you are a serious gamer, then a dedicated sound card is a requirement and fortunately, the board had two PCI slots available.

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 MSI P4N Diamond or Gigabyte GA-8I955x on-board audio solutions.

We have finalized our expanded audio testing suite and will introduce this in the next review roundup.

Ethernet Performance Final Words
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  • Wesley Fink - Thursday, October 27, 2005 - link

    Those accustomed to looking at AMD Athlon64 Performance Scores are used to seeing numbers almost the same across motherboards because the memory controller is on the CPU. The Intel Memory Controller is in the chipset and performance varies much more depending on the chipset and the quality of the motherboard design.

    That is one reason we often test Latency in Intel MB tests. If you look at the Latency test results in this review you will see a fairly wide variation across the tested chipsets and motherboards for the Intel CPU. Athlon64 Latency tests would all be virtually the same with the memory controller a part of the processor.
  • toyota - Thursday, October 27, 2005 - link

    how can motherboards make that much difference in gaming?? in the Doom3 benchmarks they range from 63 to 95 fps! i dont understand benchmarks like that and nobody else ever makes a comment. am i missing something?
  • Gary Key - Thursday, October 27, 2005 - link

    Good Day.....

    I revised the article statement about the Doom3 scores. I left it out on the final copy by mistake. We are still investigating the differences as an upcoming article from Randi on another nF4 Intel SLI board has scores higher than the numbers I have reported by a fair margin again. In fact, I will be testing the Abit board once it arrives with an disk image from my previous tests.

    Due to the memory controller not being on the CPU (current Athlon64 family design) the Intel based motherboard design makes a great deal of difference not only from a chipset choice but also from how well a board manufacturer designs and implements the supporting components and bios.

    Thank you.
  • xsilver - Thursday, October 27, 2005 - link

    the 63fps is on another chipset, the chipset affects memory, hdd performance directly and everything else indirectly..
    the 95fps actually looks like an anomaly -- and AT member will have to confirm that (SLI setup in the NI8?)

    so in fact the numbers are actually 75.3-79.4fps which is an acceptable range for the same chipset
    many people forget the mobo is the heart of the system, it pays to get a good one :)
  • TransientBen - Thursday, October 27, 2005 - link

    Mixing philosophy, classical literature and computer hardware reviews? Gotta love it. Though it's difficult to not get caught up in the philosophy and then question, "Is it worth $200 for a motherboard or a plane ticket to a new place?"

    There is so little time, afterall.

    Always been a big Asus fan. Have one of the first (original slot a) Athlon boards still up and running after all these years - rock solid - and, more recently, a Z33A laptop that's blown me away with it's quality. I look forward to the inclusion of many of these features on future AMD boards.
  • noac - Saturday, November 12, 2005 - link

    Hi, Im reading my manual and it says:

    DIMM_A1 (yellow), DIMM_A2 (black), DIMM_B1 (yellow), DIMM_B2 (black).

    Channel A = DIMM_A1 and DIMM_A2
    Channel B = DIMM_B1 and DIMM_B2

    For dual-channel configuration, the total size of memory module(s) intalled per channel must be the same (DIMM_A1 + DIMM_A2, DIMM_B1 + DIMM_B2).

    Anandtech:
    Asus did an excellent job with the color coordination of the various peripheral slots and connectors. The DIMM module slots' color coordination is correct for dual channel setup.

    My question which way is it? Im I getting the manual wrong? How to I palce my two mems for dualchannel?
  • Gary Key - Wednesday, November 16, 2005 - link

    Email me if you have any issues or further questions please.
  • Gary Key - Wednesday, November 16, 2005 - link

    Sorry about the late reply...

    You place the memory in the two yellow DIMM slots for dual channel.
  • Gary Key - Thursday, October 27, 2005 - link

    quote:

    Mixing philosophy, classical literature and computer hardware reviews? Gotta love it. Though it's difficult to not get caught up in the philosophy and then question, "Is it worth $200 for a motherboard or a plane ticket to a new place?"


    Depends on the time and place in my book. :-> However, considering where I could go for $200 at this point in time I will take the board. I also believe Dickens is queued up for the next article.

    I had been concerned about Asus the past couple of releases as I honestly thought Intel had passed them on the high end side (useable features, stability, throw in Abit for performance) with their 925x and 955x boards until this gem landed on my doorstep.

    I think the AMD version of this board should be equally adept and we should find out shortly. ;->
  • xsilver - Thursday, October 27, 2005 - link

    I can see asus and the other mobo companies making this refresh right after/before christmas and then obviously another refresh for M2 socket

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