Do some factory cabs take way more CPU than others?

[trancegodz]

Do some factory cabs take way more CPU than others in Stereo UltraRes mode?
I have a Vox AC30 preset at 87 CPU that uses Stereo UltraRes cabs F094 and F093.
I tried changing the bottom one (F093) to F122 and the CPU jumped to 94 and totally overloaded the CPU.
I tried it several times to confirm it. I never noticed this when trying out different IRs before.

 

[USMC_Trev]

Try building two separate presets from scratch and see if the loads are the same. Are both of those cabs stereo?

 

[yek]

F93 and F94 are not UltraRes IRs. So even though the block is set to Stereo UltraRes mode, it really is operating in regular Stereo mode. Regular Stereo mode uses IRs in "Normal" resolution, which require less CPU usage.

F122 is an UltraRes IR. So when you switch to that IR, the block starts operating in UltraRes mode and this increases CPU usage.