Intel Pentium 4 Northwood 3.0Ghz 800FSB 512KB cache

[stev]

For some time this processor has had me wonder what it really is.

XP, WCPU, CPUZ, and other softwares report this CPU to be "Dual Core."

But, there is no such thing as a Dual Core Socket-478 processor. I then thought, maybe this is an experimental processor that somehow got outside of the Intel domain R&D complex. Nah, that couldn't be since this CPU came out in November 2002.

So, I spent to many hours searching the internet from time-to-time trying to figure out this dilemma.

Well, I found the answer today!

http://en.wikipedia.org/wiki/Pentium_4

Out of all the early Northwood CPU's, only the 3.0Ghz supported Hyper-Threading.

"...The 3.06 GHz processor supported Hyper-Threading (first appeared in Xeon), enabling multiple threads to be run together by duplicating some parts of the processor in order to let the operating system believe that there are two logical processors. HyperThreading was present in all Northwood CPUs, but was disabled in the core in all but the 3.06 GHz model...."

Finally, this crasy two core dilemma is solved!

On another note, I found out that this core is a "rare bird" of sorts. Not many were made either.

[kappage]

ill give you 10Cents for it then

[kenc51]

I have an even rarer one here, P4 3.0GHz sckt 478 based on the Prescott core, so 1mb cache and support for HT but has a TDP of only ~89W instead of <100W, like all other Prescotts had
I can't remember the stepping, but I remember it was a very good one.

[stev]

ill give you 10Cents for it then

[Sparky]

My old P4 @ 3.06ghz w/HT is still going strong in an Intel 850EMV2 w/1GB of PC1066 Rambus in my daughters rig. Great CPU, RAM & mobo combo back in the AGP slot days!

[pazsion]

I thought HT was a mainboard issue. And that my northwood which supports it.. isnt useing it cause the MB doesnt support it..

why name it a pentium 4 with ounly one core on it..???

so upgraeding from this would be .. pentium d? or extream editions...or just buy an amd phenom.. which actually has 4 physical cpus on one die??

which intel has not done yet?

[skier]

i have an LGA775 P4 3.0 w/ HT...

when i read the first half of your post i was gonna ask if you meant threads or actual cores...