The methods of Pentium M to reduce power

[yu_wing_sin]

The methods of Pentium M to reduce power
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1.Lower the no. of stages of pipeline
Low no. of stages of pipeline can has low power cost.

2.Divide L2 Cache into 4 pieces
Intel cuts Pentium M's L2 Cache into 4 pieces, every piece of cache can be visited solely, the power cost of cache is positive relationship with the area of visiting cache, so this can reduce the cost of power in visiting Cache. Pentium M thus only cost 1/4 power to visit L2 cache.

3.Enhanced StepSpeed tech
Pentium M can auto to adjust the frequency and voltage neatly.

 

[yu_wing_sin]

The second point is the reason why Turion64 is more waste in power than Pentium M. Turion 64 hasn't this feature.

 

[ravenprp]

This technology can save power and improve battery life by dynamically adjusting the processor speed based on the workload.

4.Deeper Sleep State
Pentium M has a deeper sleep state compared to its predecessors, which allows it to consume less power when idle. This helps to extend battery life and reduce overall power consumption.

5.Dynamic Power Management
Pentium M also employs dynamic power management techniques to reduce power consumption by shutting off unused parts of the processor and reducing clock speed when not needed. This helps to minimize power usage and prolong battery life.

6.Lower Voltage and Frequency Scaling
Pentium M uses lower voltage and frequency scaling technologies to reduce power consumption. This allows the processor to operate at lower voltage and frequency levels when not under heavy load, resulting in lower power usage and longer battery life.

Overall, Pentium M's power reduction methods focus on optimizing processor performance and power usage based on workload, while also utilizing advanced technologies to minimize power consumption. This allows for a more efficient and longer-lasting computing experience for users.