Pentium M to replace P4

Just weeks after the Prescott-core P4s began rolling off the lines, these hottest CPUs ever made are on the chopping block. According to this Reuters news report, Intel has scrapped plans for two new P4-based products as it shifts focus to making chips that have twice the computing power. This is the highly efficient Pentium M, currently limited to mobile computing. The move comes amid concerns that in future versions, the Prescott would require too much power as well as expensive cooling systems. The new strategy shows Intel is backing away from a focus on raw speed. Intel plans to introduce dual-core chips for desktop computers in 2005 and plans to start shipments of dual-core chips for notebook computers the same year.

From a Silent Computing perspective, this is the best news from Intel in a long time. Thermals, cooling and noise are inextricably related. It is should be well known that not only can a Pentium M match the performance of a P4 that is double the clock speed, its thermal efficiency is around 4X better. That is, a Pentium M requires only 15W to match a P4 that draws over 60W for the same performance.

The Reuters report says Intel’s dual-core chips for desktop computers will be available in 2005. Perhaps this means the single-core variety Pentium M for desktop will be available sooner?

The Register’s analysis.
Overclockers.com‘s take: "The End of (Easy) Scaling"

Just weeks after the Prescott-core P4s began rolling off the lines, these hottest CPUs ever made are on the chopping block. According to this Reuters news report, Intel has scrapped plans for two new P4-based products as it shifts focus to making chips that have twice the computing power. This is the highly efficient Pentium M, currently limited to mobile computing. The move comes amid concerns that in future versions, the Prescott would require too much power as well as expensive cooling systems. The new strategy shows Intel is backing away from a focus on raw speed. Intel plans to introduce dual-core chips for desktop computers in 2005 and plans to start shipments of dual-core chips for notebook computers the same year.

From a Silent Computing perspective, this is the best news from Intel in a long time. Thermals, cooling and noise are inextricably related. It is should be well known that not only can a Pentium M match the performance of a P4 that is double the clock speed, its thermal efficiency is around 4X better. That is, a Pentium M requires only 15W to match a P4 that draws over 60W for the same performance.

The Reuters report says Intel’s dual-core chips for desktop computers will be available in 2005. Perhaps this means the single-core variety Pentium M for desktop will be available sooner?

The Register’s analysis.
Overclockers.com‘s take: "The End of (Easy) Scaling"