Drive and Audio Performance Results

Our drive- and audio testing differs a bit from the rest of our testing for several reasons. First of all, when it comes to drive-performance comparisons, nearly every platform on the market is very close to all the others because most provide external drive controllers, making the numbers offered very platform agnostic. And finally, with audio, we do not list any numbers except for those reported by the product we are testing. This is to provide the most information possible, as each audio CODEC will behave quite differently. Many boards also employ a different CODEC. As such, there is no standard we can use other than the numbers themselves. You can always check our other motherboard reviews to make direct comparisons in audio performance.

We tested each drive interface separately in order to provide you with numbers that are as complete as possible. Employing HDTune Pro for all of the testing, we tested each drive outside of the OS environment through a separate OS on a separate drive. However, we put a fair amount of data on both the Crucial M4 drives(60% full) to simulate performance in real-world situations. Also new is that all USB 3.0 testing is done via the provided front-panel ports rather than the ports on the rear of the board since front-panel ports are more likely to be used. I also no longer test SATA interfaces using a SATA 3 Gb/s drive since SATA 3 Gb/s functionality is now a legacy item.

HDTune Pro (SATA 6Gb/s)

HDTune Pro (USB3.0 Front Panel)

The ASUS X99 DELUXE didn't do so well in our SATA 6 Gb/s tests, but USB 3.0 results were pretty good, all things considered. With not only two SATA Express ports, but also two possible M.2 ports, perhaps that is the drive to use with the ASUS X99 DELUXE, since it put up good numbers, though those numbers haven't been included since SATA Express drives aren't yet available in retail.

RightMark Audio Analyzer

I've recently tested a few boards with really poor results in RightMark Audio Analyzer, so I was a bit hesitant to test the ASUS X99 DELUXE's audio capabilities, yet in the end, I'm glad I did. The Crystal Sound 2 design with Realtek's ALC1150 CODEC really lives up to its name. It's loud and accurate and barely shows any signs of strain and, hence, doesn't suffer from noticeable distortions.