You guys probably talked about it quite a while ago, but I still don't
get a good answer. To my understanding, hyperthreading is the ability
to make use of ALU and FPU simutaneously in a CPU - totally different
from a dual CPU set-up. The ALU performs integers and logical
(or/and/xor) operations, and FPU is for floating points. To me the
answer lies on what audio application does:

- recording single/multi-tracks : integer and/or floating-point?
- playback of multi-tracks : integer and/or floating-point?
- playback with effects : integer and/or floating-point?
- mix-down : integer and/or floating-point?

Aside from the computing technical stuff, I'm sure some of you guys
actually used a hyperthreading system and may have some empericial
data for answering the question if HT helps or hurts audio
applications.

To me, the only time when HT helps is the running process involves
both integer and floating point operations simultaneously.

Regards,
Ernest