11-Way P45 Motherboard Shootout

By Thomas Soderstrom
published

Onboard Audio Quality

We used Asus’ acclaimed Xonar D2X as an audio capture device to test each motherboard’s onboard audio quality under RightMark Audio Analyzer 6. Because the graphing function of RMAA6 supports a maximum of four products, we organized these alphabetically.

Frequency Response

Asus provides the best frequency response, with Gigabyte only slightly behind. The curve drops off at around 18 kilohertz for all models, some more drastically than others, with only the P5Q Deluxe reaching 20 kHz within one decibel of the output signal.

Noise Level

ASRock’s P45TS-R looks a little better than average noise level, but the average is so good we really can’t fault any of today’s test samples.

Dynamic Range

All of today’s motherboards showed good dynamic range, with Jetway’s HI04 only slightly behind the overall average.

Total Harmonic Distortion

All of today’s samples also showed very little harmonic distortion, except for some odd spikes in Biostar’s TPower i45 graph

Stereo Crosstalk

Most of today’s samples had good stereo signal separation, but Asus’ new AD2000BX codec appears to have a slight problem. We hope this problem can be corrected with a driver update, but casual listeners probably won’t notice it.

Thomas Soderstrom
Thomas Soderstrom
Thomas Soderstrom is a Senior Staff Editor at Tom's Hardware US. He tests and reviews cases, cooling, memory and motherboards.
55 Comments Comment from the forums
  • nickchalk
    Where are the lower price P45 M/B ?
    Asus P5Q pro is out for €110 and P5Q deluxe for €165 the price difference is about 70$ in Greece.
    Reply
  • nihility
    51 pages... You won't be upset if I read just the last 3 pages right?
    Reply
  • Proximon
    I suppose I can get some good from having read this. Did you get paid by the word? Maybe next time you could just put together a complete features chart so that we can have some convenient comparison? You know, so someone could go to a chart and see at a glance which boards had eSATA or firewire, or 8 USB.

    Reply
  • JPForums
    I'd rather have the overabundance of information than a lack of information. Presentation could use a little refining (I.E. comparison charts and the likes), but having the relevant information available at least is a good thing.
    Reply
  • the introduction and specifics are nice, the comparision isn't. so, why don't you test with an 8500 or qx9650? 6850 are outdated... and a mobo handling a c2d doesn't mean it can handle a quad too, see P5K for example (it stinks when it comes to a q6600).
    Reply
  • Crashman
    procithe introduction and specifics are nice, the comparision isn't. so, why don't you test with an 8500 or qx9650? 6850 are outdated... and a mobo handling a c2d doesn't mean it can handle a quad too, see P5K for example (it stinks when it comes to a q6600).
    Tom's Hardware wants the performance of current articles to reflect that of recent articles, so a "standard test platform" was chosen a while ago. It will get updated, but probably not before the new socket becomes widely available.
    Reply
  • zenmaster
    I would have liked to see something such as a P35 and an X48 as controls to help analyze the P45 Performance.

    In otherwords, What is the P45 Gaining me over the older P35.
    What would I gain by going to the X48. (Or Lose)
    Reply
  • Crashman
    zenmasterI would have liked to see something such as a P35 and an X48 as controls to help analyze the P45 Performance.In otherwords, What is the P45 Gaining me over the older P35.What would I gain by going to the X48. (Or Lose)http://www.tomshardware.com/reviews/intel-p45-chipset,1961.html
    Reply
  • johnbilicki
    The first 17 pages were filled with nothing but junk from ASUS. Do us a favor: don't even bother featuring or *MENTIONING* anything for any reason from a company that refuses to RMA 200-400 dollar brand new motherboards with anything other then used and usually broken junk. It destroyed my enthusiasm for the article.
    Reply
  • dobby
    nickchalkWhere are the lower price P45 M/B ?Asus P5Q pro is out for €110 and P5Q deluxe for €165 the price difference is about 70$ in Greece.
    the p5q PRo is a p43 board, i should know i have one
    Reply