P4 2.0A with HT?

[agissi]

Is this possible? I didnt think so:

 

[Didou]

HyperThreading was already present on the very first Northwood, it just wasn't enabled.

It's only enabled on the P4B 3.06 & all the P4Cs & cannot be enabled on previous P4s.

 

[agissi]

Why did they do such a thing?

 

[Rick]

Originally posted by ---agissi---
Why did they do such a thing?

There's a lot of things which defy reason. If you discover the answer, you will be shot.

 

[Didou]

They added HT when they did the transition from 0.18 to 0.13. Intel always adds loads of functions but doesn't enabled them out of the box.

When there is a market that can actually use these extra features, or shall we say a market that's willing to pay more to use those features, they activate them.

Prescott CPUs allready have the x86-64 compatible instructions. Intel is just waiting to see if the market is really moving towards x86-64 before enabling them.

 

[agissi]

Wow... wow wow wow.. man, its like they are keeping us back