Intel Dual Core Performance Preview Part I: First Encounter
by Anand Lal Shimpi on April 4, 2005 2:44 PM EST- Posted in
- CPUs
The Chip: Pentium Extreme Edition
As we mentioned in our IDF coverage, Intel has dropped the number 4 from their naming for their dual core parts. The new dual core desktop CPUs will simply be called the Pentium D and the Pentium Extreme Edition.
Both the Pentium D and Pentium Extreme Edition are nothing more than two 90nm Prescott 1M dies glued together. That means that each core has its own 1MB L2 cache, and that also means that architecturally, these chips are no different than the single core Pentium 4s that are out today - other than the obvious dual core fact.
Contrary to what we've reported earlier, the only difference between the Pentium D and the Pentium Extreme Edition is the presence of Hyper Threading; mainly, the Pentium D doesn't have it, while the Extreme Edition does. Both chips will only use a 800MHz FSB, they both have the same cache sizes, and they only differ in the presence of HT.
Armed with Hyper Threading, the Pentium Extreme Edition allows the execution of 4 concurrent threads and appears as a quad processor CPU to the OS. Without Hyper Threading, the Pentium D only allows for 2 concurrent threads and appears as a dual processor CPU to the OS.
While the Pentium D will be offered in three speed grades, from 2.8GHz up to 3.2GHz, the Extreme Edition will only be launched at 3.2GHz. Note that the fastest single core Pentium 4s run between 3.6GHz and 3.8GHz, so there is a significant clock speed penalty paid by going to dual core.
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Questar - Monday, April 4, 2005 - link
Is Xvid a relevent test? It's not multithreadedboban10 - Monday, April 4, 2005 - link
hi. thanks to responding.i have some sugestion for you work.
can you test this:
http://forum.doom9.org/showthread.php?s=&threa...
easy real media producer, you get it here:
http://redcheek.net/erm/ermp_full.zip
its free..
can you try to encoding some things, i wannt to see how much diference it it on one and two cpu, and would be nice if you can test with athlon xp too, because i wannt to see how much gain i get with dual-core cpu...
then some more programs that suport dual-cpu:
TMPGEnc , Photoshop. Premiere pro ...
thanks...
Anand Lal Shimpi - Monday, April 4, 2005 - link
Thanks so much for the comments, keep em coming in. This is just the first part, there's more coming. I've got another NDA tomorrow morning but then after that it's more dual core. Let me know what you want to see, I've already got quite a bit planned :)And yes that die shot is correct, it is simply rotated 90 degrees clockwise to fit on the page better.
Take care,
Anand
erikvanvelzen - Monday, April 4, 2005 - link
Are you 100% sure that die picture is right? Again a great review from Anandtech!DAPUNISHER - Monday, April 4, 2005 - link
I must have missed it somehow; what storage setup did you use? Thanks and great article kid :-)boban10 - Monday, April 4, 2005 - link
Anandtech, i wannt to thank you, because this is a great preview....ronaldo
Avalon - Monday, April 4, 2005 - link
Impressive results. Sometimes I come across a scenario where I'm doing two things at once fighting for 100% CPU time on my A64 Sempron rig, so it would be quite nice to have a dual core chip to handle that for me. I personally can't wait to see a more full review, and hopefully one of AMD's dual core setup as well.karlreading - Monday, April 4, 2005 - link
#11Very good points, but i think the thing to remeber about intel is this:
Yes, they are beating AMD to the desktop. And yes, that will be good beacuse it will encourage the user base to adopt dual core, and thus programers to multi thread more. Bineg a enthusiast site, obviously dektop dual is the scene we care about and sticks in our minds.
BUT:
AMD will beat out Intel to dual core in the enterprise segment. THE area where the real money is. THE area where dual core can stretch its multithreaded wings. THE area where it has a product thats already causing waves ( opteron may not have the penertration of xeon, but it's given AMD a seriouse status in the enterprise sector and it is a respected architecture ), and, THE area it can really try and hurt intel, and its partners. DELL wont have a dual core capable box yet, HP can have one very soon. More to the point, if ur a IT head and u spent on Opteron server, Youll be a very happy one. Beacuse that 8 Way opteron box you got can suddenly become a 16- way box.
Its strikes of AMD's stratagey with x86-64. No, it wasent as powerful as itanium, it wasent new, fresh, and funky. It certainly wasent the first 64 bit cpu for enterprise wither, not by a long shot. But by giving comapnys, and people what they want, a easy, painless upgrade path, it suceeded in destroying intels dream of killing of x86. Intel was still denying yamhill when it was already in there cpus, lying dormant for the day intel would swallow its pride and follow AMD down the x86-64 route.
Intel will beat AMD to dual core on the desktop, but they will make waves and in roads in the enterprise sector, and, let's face it, its just better that way.
Karlos
Googer - Monday, April 4, 2005 - link
"I tried to take a screenshot of what was going on, but print screen wouldn't work. I could launch Paint, but I couldn't paste anything into it"If paint does not work you can always use wordpad and paste any images to it that are cahced to the clipboard.
karlreading - Monday, April 4, 2005 - link
Personally, im very excited about dual core. It appears to me that everyone seems to be forgeting the main thing.Its not necesseraly about doing one thing faster, its about doing MORE things faster.
the multi-tasking scenarios ANAND has given us is where the real excitment and benefit come in. Now, as a AMD FANboi, all i say is this: Bring on TOLEDO :)
Karlos