Intel's Pentium 4 E: Prescott Arrives with Luggage
by Anand Lal Shimpi & Derek Wilson on February 1, 2004 3:06 PM EST- Posted in
- CPUs
So, what’s being launched today?
Intel has dropped one hell of a package on our doorsteps today and we’ve made it through all of the architecture, but can we make sense of their marketing? We kid, we kid, it’s not all that bad.
Intel wants to shift all Pentium 4s over to Prescott as soon as possible, mostly because once production ramps up it will be cheaper for Intel to make a 112 mm^2 Prescott than it is for them to make a 131 mm^2 Northwood. Therefore Prescott launches at clock speeds that are equivalent to currently available Northwoods.
In Intel’s usual style, if there are two different cores with the same clock speed Intel will use a single letter to differentiate them. In the case of Prescott the magic letter is ‘E’, so all ‘E’ processors will mean they are Prescott based.
Prescott is being launched today at four clock speeds, giving us the following:
Pentium 4 3.40E
Pentium 4 3.20E
Pentium 4 3.00E
Pentium 4 2.80E
But don’t get too excited, the 3.40E chip isn’t actually available yet and to make up for that fact Intel also released a Northwood based 3.40GHz Pentium 4. The Northwood based Pentium 4 3.40GHz is currently available, but within the coming months you’ll see them replaced with Prescott based 3.40Es.
In an interesting move by Intel, Northwoods and Prescotts at the same clock speed will be priced identically. Intel is hoping that the price parity will make people choose Prescott over Northwood (why not? You get twice as much cache for free!) but this policy also works in our favor. In order for most vendors to get rid of Northwood inventory you can expect prices to be cheaper than Prescotts.
With a BIOS update these ‘E’ CPUs will work on currently 875/865 motherboards, but check with your motherboard manufacturer first to make sure. We will have a motherboard compatibility article out as soon as possible to document any combinations you should stay away from.
Today Intel is also introducing the Pentium 4 Extreme Edition running at 3.4GHz. This EE is based on the same 0.13-micron process as its predecessor; although there are currently no plans for a 90nm Extreme Edition you can expect one to appear once Prescott begins to approach Extreme Edition performance.
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Stlr22 - Sunday, February 1, 2004 - link
post*Stlr22 - Sunday, February 1, 2004 - link
KristopherKubickiEarlier you said that I should read the article.
What was your point? What was it about my first pot that you disagreed with?
KristopherKubicki - Sunday, February 1, 2004 - link
#7:I agree 100% with Anand and Derek. This processor will be a non-event until we get in the 3.6GHz range. Similar to Northwood's launch.
#10:
Check out our price engine. We have already been listing the processor a week!
http://www.anandtech.com/guides/priceguide.htm
http://www.monarchcomputer.com/Merchant2/merchant....
cliffa3 - Sunday, February 1, 2004 - link
In the table on page 14 it shows that the 90nm P4@2.8 will have a 533 MHz FSB, but is that the case? I did some quick google research and can't find anything to support that...please confirm or correct, thanks.NFactor - Sunday, February 1, 2004 - link
Yes, I must agree this is an amazing article, one of the best i have ever read. Thanks.Xentropy - Sunday, February 1, 2004 - link
VERY interesting article. Thank you Anand and Derek! One of the best I've read on Anandtech, and I consider yours the best hardware site on the net!One correction, on page 7, you say, "if you want to multiply a number in binary by 2 you can simply shift the bits of the number to the right by 1 bit," but don't you mean shift to the left one bit (and place a zero at the end)? It's much like multiplying a decimal number by ten for obvious reasons.
Anyway, it looks like the Prescott is somewhat of a non-event at this time. Just new cores that perform fundamentally the same as the current ones at current speeds. The real news will come later; Intel has just positioned itself for one hell of a speed ramp to come. Northwood was clearly at the end of the line. One analogy, I suppose, would be that Intel didn't fire any shots in the CPU war today, but they loaded their guns in preparation to fire.
The coming year will be an exciting one for us hardware geeks. I'm interested in seeing how higher clocked Prescotts play out as well as whether anything 64-bit shows up before 2005 to support AMD's stance that we need it NOW.
Again, thanks for a very thorough article!
Stlr22 - Sunday, February 1, 2004 - link
KristopherKubickiSo what's your take on these new Prescotts?
KristopherKubicki - Sunday, February 1, 2004 - link
Anand scolded me for not reading the article :( I only read the conclusion and the graphs. Turns out the decision making isnt as clearcut as it sounds.As for the thing with the inquirer. Well, lots of people had prescotts. We had one back in August I believe. The thing is they were horribly slow - 533FSB 2.8GHz. Everyone drew the conclusion that these were purposely slowed processors that were jsut for engineering purposes. While the inq benched this processor, most people didnt just becuase they were under the impression this was not to be the final production model. Hope that clears up some discrepancy about the validity.
Cheers,
Kristopher
wicktron - Sunday, February 1, 2004 - link
Hehe, I guess the Inq was right about this one. Where are all the Inq bashers and their claim of "fake" benchies? Haha, I laugh.Stlr22 - Sunday, February 1, 2004 - link
KristopherKubicki - "read the article..."lol that might be a good idea, as I only broswed it and read the conclusion. :D