Intel to name desktop dual-core processor "Pentium D"



San Francisxo (CA) - Intel continues its aggressive pace on the way to the introduction of its first dual-core proessor. On the first day of the Intel Developer Forum, the company provided nuts and bolts on its processor roadmap, formally announcing new brandnames, upcoming platforms and new chipset features such as integrated support for dual graphics cards.

After months of speculation and bits and pieces of information on dual-core processors, Intel Vice President Stephen Smith explained details about its multiple excution unit approach that willa llow the firm to continue the legacy of Moore’s Law. The firm’s dual-core platform will launch in the second quarter with the Pentium Extreme Edition 840 and the 955X chipset as well as The Pentium D processor that formerly was know by the code name Smithfield and will use the 800-series sequence number.

Intel claims the new Pentium EE 840 will achieve the performance of a dual-processor workstation of 2004. In comparison to the current EE model, the 840 model runs at a lower clock speed (3.2 GHz) integrates half the cache per core (1 MByte) and supports only the 800 MHz FSB instead of the 1066 MHz of the single-core FSB. The Extreme Edition will drop the “Pentium 4” name and carry over the sequence number. The EE 840 will remain the only Extreme Edition Pentium at least for the remainder of this year.

As the performance-focused platform, the 955X chipset will introduce several new featues such as performance memory optimizations as well as an integration of a dual x16 connect with support for dual graphics cards - a feature that goes head-to-head with Nvidia’s SLI technology.

The Pentium D processor will be introduced as long-term replacement for the current Pentium 4 platform. Initially a performance-oriented chip, the 800-series will quickly make its way into the mainstream and become Intel’s volume product. While Smithfield will be a single-die or “monolithic” processor, future processors such as its 65 nm Presler chip will be true multichip processors with at least two dies within one package. While Intel remains quiet about the advantages of the two-die future approach, but sources indicated that the integration of separate dies decreases complexity of the processor an may allow Intel to lift clock speed of chip.

So far unclear is still the role of the future of single-core processors. The road-map still lists the 65 nm Pentium 4 successor “Cedar Mill”. According to Smith, single cores will co-exist withd dual-cores for “some time.” While Cedar Mill is likely to still use the Pentium brand and will carry over the 2 MByte cache from the current 600-series, the single-core product line will take on the role of Intel’s low-end offering and is speculated to be limited to the Celeron brand down the road.

Hyperthreading also remains a topic of the new processors that will help the Intel to increase the number of processed threads per chip. In the foreseeable tme, the company expects threads to increase from 2 today (2 threads, one core) two eight (2 cores and 4 threads or 4 cores and two threads). Servers will stay ahead of the desktop offering up to 32 threads per processor (8 cores, 4 threads) by the end of this decade.

Source: TomsHardware &



In the spirit of multi-core at IDF, Intel has officially named the dual core Smithfield based Pentium 4 processors - by ditching the number 4.

The desktop dual core processor is called the Pentium D, and here’s its logo:

The 90nm Pentium D will debut at the following speeds:

Intel Dual Core Performance Desktop Lineup LGA775
Processor Speed L2 Cache FSB Launch
Pentium D 840 3.20GHz 2x1MB 800MHz Q2’05
Pentium D 830 3.00GHz 2x1MB 800MHz Q2’05
Pentium D 820 2.80GHz 2x1MB 800MHz Q2’05

Next up we have the Pentium Extreme Edition, also missing the number 4:

The Pentium Extreme Edition will only be launched at 3.2GHz and feature a 1066MHz FSB as well as Hyper Threading (2 threads per core, 4 threads total). The rest of the features remain identical to the Pentium D.

We can’t help but think that the Pentium D logo looks a little too much like the Celeron D logo, but Intel has definitely made the Pentium Extreme Edition look somewhat more worth its price tag.

As we alluded to earlier, there is a bit of an issue with the way the Smithfield die is laid out in that it is a single piece of silicon consisting of two Prescott 1M cores. Although one of the cores can be cut away or disabled if it is useless, the problem is that we’re now dealing with one very large core at 206 mm^2 and 230M transistors. Remember that chip defects increase by surface area, so manufacturing one very long piece of silicon lends itself to higher defects than two smaller pieces of silicon. Pressler, the 65nm chip we talked about earlier today, gets around this by actually using two separate pieces of silicon for the two 65nm cores - Pressler also uses the 65nm process to enable a full 2MB of cache per CPU, that’s 4MB of total cache on a desktop processor.

More info as we get it…for those that are wondering, Gelsinger’s keynote was infinitely better than Barrett’s, in terms of interesting information.

Source: AnandTech


I really wonder how these CPUs will perform. DualCore is nice, but as long as the software isn’t ready for it, it’s quiete likely to perform equal or even less to the single core CPUs (just like HTT does). Another thing I kinda worry about is the powerconsumption and heat dissipation. Recent P4s are better than the somewhat older ones (concerning heat dissipation and power consumption), but concerning the fact that there will 2 cores on the PCB, I think it might lead to troubles or less wanted situations.


32 threads by the end of this decade. :sad: Long way from very multiple threading on every desktop. :sad:


Hyperthreading is a Big flop.
If u see cell processor have 8 “cores” , so nothing really new when u see a dual-core.


There’s a big difference between Cell CPUs and multicore CPUs. In a Cell CPU, every unit has it’s own tasks, strengths and abilities. Multicore CPUs have identical cores with identical features.

Cell CPUs can be compared to vector systems (often used for supercomputers) were multiple CPUs are used (a mixture of regular CPUs for system control and vector units to compute certain data immensively fast). I wouldn’t be wondered if techniques like these come to the regular PC market in some years.


Wasn’t it Alpha that first pioneered multiple threading technology? Part of the Alpha teams later jointed Intel and Intel’s version became Hyper-Threading first massively commercially introduced in Pentium 4 (and its Xeon version) processors. Sun Microsystems adopted the technology long before Intel, if I remember it correctly.

At any rate, it’s not so far away now. Perhaps some of us posting here will experience some of the early-version Intel or AMD or both dual-core processors by the end of 2005. :slight_smile:


Don’t really know if Alpha was the first. All I know is that is quite an old technology hyped by Intel. Could be Alpha… or IBM, Sun, HP…


There are rumours that apple will get cell cpu from sony /ibm/toshiba
cell chip will be used in the next ps3


I’m very eager to see what these cips can do for common PC usage. As both Intel and AMD haven’t really been looking this way, I somehow expect it to be not so interesting. At least, for now that is…