which one is better and why: Pentium D or Pentium M?

Answer 1

Pentium M

Answer 2

The Pentium M couples 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 usually power-hungry secondary cache uses an innovative access method to avoid switching on any parts of it which are not being accessed. 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. The latest innovation in this department is also the incorporation of the SpeedStep 3 technology which has enhanced sleep stages in comparison to the previous versions of SpeedStep. 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. The existence of these intermediate clock states allows the CPU to better throttle clock speed as per requirement. Another remarkable feature of the Pentium M is its extremely low power dissipation which varies from 5 watts when idle to 27 watts on full load. This feature is extremely useful to notebook manufacturers as it allows them to bundle the Pentium M into thinner, lighter and smaller notebooks.

Although Intel has marketed the Pentium M exclusively as a mobile product, motherboard manufacturers such as AOpen, DFI and MSI have been shipping Pentium M compatible boards designed for enthusiast, HTPC, workstation and server applications. An adapter, the CT-479, has also been developed by ASUS to allow the use of Pentium M processors in selected ASUS motherboards designed for Socket 478 Pentium 4 processors. Shuttle Inc. offers packaged Pentium M desktops, marketed for low energy consumption, and minimal cooling system noise.

Pentium M processors are gaining attention from the embedded systems industry. The low power consumption of the Pentium M allows the design of fanless and miniaturized embedded PCs.

The Pentium D is a series of microprocessors that was introduced by Intel at the Spring 2005 Intel Developer Forum. A 9xx-series Pentium D package contains two Pentium 4 Cedar Mill dies, unlike other multi-core processors (including the Pentium D 8xx-series) that place both cores on a single die.

The Pentium D was the first announced multi-core CPU (along with its more expensive twin, the Pentium Extreme Edition) from any manufacturer intended for desktop computers. Intel underscored the significance of this introduction by predicting that by the end of 2006 over 70% of its shipping desktop CPUs would be multi-core. Analysts have speculated that the clock rate race between Intel and AMD is largely over, with no more exponential gains in clock rate likely[citation needed]. Instead, as long as Moore's Law holds true, it is expected that the increasing number of transistors that chip-makers can incorporate into their CPUs will be used to increase CPU throughput through other methods, such as adding cores.

With the release of the Intel Core mobile processors and Intel Core 2 desktop processors, the Pentium D is the final processor to carry the Pentium brand name that has been at the forefront of Intel's products since 1993.

Answer 3

I would say Pentium M just because it is newer.

Answer 4

pentium m means mobile as in laptop