The current line of top-end Pentium 4s each consume 100 watts, or more than most household lightbulbs. Much of that energy is lost in leakage. By making a dual-core chip with each chip running at a moderate speed, Intel can increase peformance and reduce power consumption.
Yes that also why I alway's shop canny, My first comp was a P60 from defunct ESCOM Paid £160 for 3 year up front Warranty and went bust 4 weeks later money gone I soon learned lesson. I now look at upgrades on the basis of not the latest and greatest. but if for example a CPU I would look at where the sharp change occurred it’s a case of value for money. but that's life and as you know we are still learning even at 68
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