3D Soundsurge heeft een artikeltje gepost over DirectSound3D / EAX en A3D2.0 performance in de Unreal Tournament Demo. Uit de benchmarks blijkt dat de impact van A3D2.0 wavetracing op de framerate behoorlijk heftig is, rond de 30%:
The other thing the Vortex 2 results on both Computer A and B brings to light can be viewed as either disturbing or reason to be optimistic. On one side, the performance impact of wavetracing in Heretic II, which sounds great, is now almost non-existent after originally starting out in the order of 25 percent slower than direct sound (with no 3d). On the other side we have the older hybrid wavetracing implementation of Half-Life (hybrid because Half-Life has its own software reverb engine). It started out at around a 31 percent performance impact vs direct sound and on original Vortex 2 boards has been improved by a few percent to around 28 percent. Half-Life as noted is where the SQ2500 showed the biggest performance gains to date with wavetracing having only around a 17 percent hit on performance compared to direct sound.
Right now the Unreal Tournament impact is in the order of Half-Life on the SuperQuad for both original and revised Vortex 2 boards. What we must hope for is that Unreal Tournament’s A3D 2.0 performance impact, which like Half-Life has its own software reverb engine, can be optimized to similar impacts that we see in Heretic II.