Ok, here it goes:
- winxp pro SP2, no apic (only 16 IRQ)
- Audigy 2 with an IRQ all for itself.
- A64@2500, msi neo2 platinum (nforce3 ultra)... bla bla bla bla... The rest doesn't matter for this.
- Guitar rig 2 demo.
- All 16 ASIO channels enabled, using default mode.
So, for 3538J and 3538K I got:
- Minimum working latency (where I can still hear the sound and not a bunch of noise): 2ms, with ocasional pops.
- Minimum realiable latency: 2.67 ms, with pops starting to occur at around 50% cpu load.
Conclusion:
With ACPI off and with applications that make no significant use of the hardrive, ASIO performance remains the same.
If there's really an improvement as some people stated, maybe it's under diferent conditions, such has ACPI on, where in my case, I can't go lower than 4ms with 3538J. I still don't want to mess with my ACPI installation that I use to work since it will be a PITA to get all those kx plugins working again, so, if you're sure that 3538K works better with ACPI just let me know...
