the magical me

hello all...

today I have helped my friend that I have formatted and reinstalled Windows on his PC, that has a Pentium D CPU 3.4 GHz, 2MB L2 Cache, and 800 FSB, and thought the name "Pentium D" confuses the consumer with the Pentium Dual-Core, however it's not, since the Pentium Dual-Core has 2 Cores without HT, while the P D is a single core CPU with HT, and this makes it really looks like the P4 HT, and I had an old P4 which is the same as this PD, the same clock speed, the same L2 Cache amount, and the same FSB frequency with HT too, and both are 65 nm. so what's the difference between those 2 CPUs? which one is better than the other one ?

thanx

tweakboy

Without a second thought Pentium D

It is dual core 3Ghz , avg.

P4 is a single core and earlier technology.. gl

fstfrddy

IIRC P4's are not 65nm, they would be 130 or 90.

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aksthem1

The Pentium D is a dual core processor. It's basically two P4s slapped together.
The PD will be better than the P4 obviously, but they sure do run mighty hot.

Edit: fstfrddy they actually did make a few 65nm P4s.

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zodac

I think you're mistaken; the Pentium D is in fact a dual-core processor. It's the better choice here.

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PanicProne

Pentium 4 HT = 1 physical core, 1 virtual core.

Pentium D = 2 physical cores.

Pentium D wins.

danewfie

Pentium D is actually a dual core.

In theory the pentium D is two p4's stuck together.

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Livinstrong

The last revision of Pentium 4's came in the 65nm variety, and the model numbers ended with 1's. Examples: 630=90nm 631=65nm

Pentium D's and Pentium 4's are not the same. A Pentium D is actually two Pentium 4's on one wafer. Kinda like Intel's Core 2 Quads are just two Core 2 Duo's on one wafer.

Back to the original question- a Pentium D is definitely better but might run a bit hot.

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blooder11181

pentium d8xx 2x1mb 90nm
pentium d9xx 2x2mb 65nm

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mmx+

As someone who has had both, I believe I can enlighten you: I first had a 3.4ghz Pentium 4 HT overclocked to about 3.8ghz. It was reasonably fast, but was laggy in some intensive applications. I then upgraded to a 3.0ghz Pentium D (got it for free when a friend upgraded), and it was far better. It didn't change how I browse the web, but for any intensive tasks, the second core was incredible. Not content to leave anything at stock speeds, I overclocked the Pentium D to 4ghz. Bliss! (at least until Core 2 ) The only problem was it ran hot as hell