In camera Nosie reduction.

Hi all,
I was wondering how effective in camera noise reduction is? I've taken a few photos with it on, where it flashes up "JOB NR" for ages while it's processing.
I shoot in RAW.
Is it better to use the in-camera noise reduction, or better to alter the image in Capture/Photoshop?
Regards,
Tommo.
I was wondering how effective in camera noise reduction is? I've taken a few photos with it on, where it flashes up "JOB NR" for ages while it's processing.
I shoot in RAW.
Is it better to use the in-camera noise reduction, or better to alter the image in Capture/Photoshop?
Regards,
Tommo.