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Old 02-04-09, 08:15 AM   #2
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Join Date: Sep 2004
Location: Sweden
Posts: 1,092
Default Re: XAudio2 and Hardware Acceleration

There are differences, but not seen many tests on it.

Below is a recent test Asus Xonar on FiringSquad which has some fps numbers, but results are somewhat inconclusive.
The most distinct number is with Call of Duty: World at War, where you can see almost 10+ fps comparing X-Fi vs built-in Realtek in XP (hw accelerated) and the difference gone in Vista (software).

Software mixed audio will always take performance from the CPU, I guess it depends on how loaded the CPU is with other tasks if it will be noticable on the framerate or not.
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