2500k - turbo or set multi?

[Pete.Dakota]

I've got my 2500k up to 4.6ghz using my Asrock Extreme4 Gen3's turbo profile and manually setting the voltage in offset mode. Large FTTs in Prime95 and the chip pulls 1.296v; temps are around 62 degrees.

I've seen some people talk about not using a turbo profile, and manually setting the multi. Is this effectively the same as turning off Intel's SpeedStep? What are the benefits of having it run at 4.6ghz all the time and not clocking down when not under load?

When idling the CPU goes down to 1.5ghz and pulls just over 1v, I can't see a downside to this?

 

[Deception]

People generally use the manual method so they know what voltages are being pulled and see if they can get it lower than the turbo profiles. Intel Speedstep can still be turned on (its on by default unless you manually disable that too). I have manually overclocked to 4.5ghz and still use Speedstep to clock it down when I dont need it.