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Intel Pentium 4 3066 MHz in the test: HyperThreading for the desktop

Intel Pentium 4 3066 MHz in the test: HyperThreading for the desktop

New record for consumption

Higher clock rates are all well and good, if only it weren't for the problem with the increasing power consumption. Because whatever electricity the processors let run through their circuits, is inevitably converted into heat. Wouldn't the world be beautiful if there was no power loss (caused by the ohmic resistance of the lines)? Unfortunately, we are not that far yet and so the processor manufacturers must do all they can to prevent their next bolide from becoming a 100 watt eating monster.

Power consumption
Unit: watt(W)
    • Pentium 4 1.8A (Northwood nB0)
      49, 6
    • Pentium 4 2.0A (Northwood nB0)
      52.4
    • Pentium 4 2.2 (Northwood nB0)
      55.1
    • Pentium 4 2.26 (Northwood nB0)
      56.0
    • Pentium 4 2.4 (Northwood nB0)
      57.8
    • Pentium 4 2.53 (Northwood nB0)
      59.3
    • Pentium 4 2.6 (Northwood nC1)
      62.6
    • Athlon XP1600 + (Palomino)
      62.8
    • Athlon XP1700 + (Palomino)
      64.0
    • Athlon XP 2400+ (Thoroughbred B)
      65,3
    • Athlon XP1800 + (Palomino)
      66.0
    • Pentium 4 2.66 (Northwood nC1)
      66.1
    • Athlon XP2200 + (Thoroughbred A)
      67.9
    • Athlon XP1900 + ( Palomino)
      68.0
    • Athlon XP 2600+ (Thoroughbred B)
      68,3
    • Athlon XP 2700+ (Thoroughbred B)
      68.3
    • Pentium 4 2.8 (Northwood nC1)
      68.4
    • Athlon XP2000 + (Palomino)
      70.0
    • Athlon XP2100 + (Palomino)
      72.0
    • Athlon 1.4 GHz (Thunderbird)
      72.1
    • Athlon XP 2800+ (Thoroughbred B)
      74,3
    • Pentium 4 2.0 (Willamette)
      75.3
    • Pentium 4 3.06 GHz(Northwood nC1)
      81.8

With the new Pentium 4, Intel has not only succeeded in raising the bar in terms of performance (without wanting to anticipate anything). The power consumption of the 3066 MHz monster also breaks all records. We hardly thought it possible that a processor could ever overthrow the Willamette at 2 GHz, but it happened. However, we are increasingly moving on a scale that can hardly be expected of desktop PCs at home. In view of this fact, it is rather questionable whether Intel will drive the Northwood core up to 3.2 GHz in this form . The fact that the processor core can handle this rate and a little more without any problems is irrelevant here. Only the change to 90nm manufacturing technology at Prescott, which will be launched in mid-2003, will be able to remedy this. It seems logical that power consumption has made such a huge leap. Finally, Hyper-Threading enables the CPU to be used much more optimally and thus to keep more units under power at the same time.

New coolers are a must

So that the new Pentium 4 also keeps a cool head in summer, Intel has slightly modified the cooler design with this processor. The new Intel reference design consists of lamellae arranged radially to form a solid copper core. Due to the better coefficient of thermal conductivity of copper, the heat is dissipated more quickly from the Pentium 4's heat spreader and then distributed over the cooling fins. An overlying fan provides enough fresh air. However, this reference cooler , which is offered in this form by EKL and Sunon, was anything but quiet. Only at 50 percent of the original fan speed was it reasonably pleasant to workpossible.

The boxed coolers below
Intel Pentium 3066 MHz opened in a box
Now with copper instead of ALu
Vlnr- Old Boxed Cooler - New Reference Design - New Boxed Cooler
Old boxed cooler - New reference design - New boxed cooler
Significantly finer fins on the new boxed cooler
The lambs on the old boxed cooler up to 2800 MHz

This is probably why Intel is adding a completely different cooler to its boxed processors , which, viewed from above, is still very similar to its predecessor. While Intel still relied entirely on aluminum for the old boxed cooler, a combination of copper base plate and significantly finer aluminum cooling fins is now used. Overall, the surface of the cooling fins has almost doubled. A characteristic that the new boxed cooler still shares with the old boxed cooler is the smooth running of the fan. In this respect, there is no negative development to be observed despite the increased power loss.

On the next page: Processors at a glance