offered packaged Pentium M desktops, marketed for low energy consumption and minimal cooling system noise.

An adapter, the CT-479, was developed by ASUS to allow the use of Pentium M processors in selected ASUS motherboards designed for Socket 478 Pentium 4 processors.

This is useful to notebook manufacturers as it allows them to include the Pentium M into smaller notebooks.Īlthough Intel marketed the Pentium M exclusively as a mobile product, motherboard manufacturers such as AOpen, DFI and MSI shipped Pentium M compatible boards designed to non-mobile enthusiasts, HTPC, workstation and server applications. The power requirements of the Pentium M varies from 5 watts when idle to 27 watts at full load. With this technology, a 1.6 GHz Pentium M can effectively throttle to clock speeds of 600 MHz, 800 MHz, 1000 MHz, 1200 MHz, 1400 MHz and 1600 MHz these intermediate clock states allow the CPU to better throttle clock speed to suit conditions.

Other power saving methods include dynamically variable clock frequency and core voltage, allowing the Pentium M to throttle clock speed when the system is idle in order to conserve energy, using the SpeedStep 3 technology (which has more sleep stages than previous versions of SpeedStep). The main intention behind the large cache was to keep a decent-sized portion of it still available to the processor even when most of the L2 cache was switched off, but its size led to a welcome improvement in performance. The usually power-hungry secondary cache uses an access method which only switches on the portion being accessed. The Pentium M coupled the execution core of the Pentium III with a Pentium 4 compatible bus interface, an improved instruction decoding/issuing front end, improved branch prediction, SSE2 support, and a much larger cache.

The Pentium M 740 has been tested to perform up to approximately 7,400 MIPS and 3.9 GFLOPS (using SSE2). Running with very low average power consumption and much lower heat output than desktop processors, the Pentium M runs at a lower clock speed than the laptop version of the Pentium 4 (The Pentium 4-Mobile, or P4-M), but with similar performance - a 1.6 GHz Pentium M can typically attain or even surpass the performance of a 2.4 GHz Pentium 4-M. It is optimized for power efficiency, a vital characteristic for extending notebook computer battery life. The Pentium M represented a new and radical departure for Intel, as it was not a low-power version of the desktop-oriented Pentium 4, but instead a heavily modified version of the Pentium III Tualatin design (itself based on the Pentium II core design, which in turn had been a heavily improved evolution of the Pentium Pro).

Windows 8 socket 478