Intel or Amd, best for power consumption

I am considering which to but.

One issue which concerns me is the power consumption, somoething most people probably don't even think about when buying because they think it is insignigicant.

Anyway a quick calculation, I am buttuming my PC will be on about 16 hours a day on average (probablyon 24hours sometimes, or at least untill it craches). Now for 365 days that is.......5,840 hours. So... I am under the impression that the AMD uses less power then the Intel possible 50watts less but I will come back with more accurate figures. So....5,840 X 0.05kW=292 kWh.

Now buttuminig a price of 8p per kWh, and electricity is unlikely to get any cheaper in the future that is......£23 per annum.

£23 is not a fortune but I expect the PC to last 5 years or more, maybe 10. So thats £115 in 5 year, or £230 in ten years, more than the cost of the processor itself.

I think there is a similar arguement for LCD monitors which I believe consume about 50 watts less than a CRT monitor. A quick look at monitor prices shows a 17" LCD monitor costs about £50 more than a CRT equilivant so the LC works out cheaper after about 2 years.

My current monitor is about 8 years old so it has cost me about ~£190 in extra power over a LCD, quite a tidy sum.

So in summary an AMD system with an LCD monitor will save me about £390 in running costs over an Intel with a CRT monitor, thats £340 saved when you add £50 for the LCD monitor, not far off what the system will cost me I expect.

I expect to pay about £500 for the system and it will be a little easier to part with the money knowing I have saved £340 by buying the 'right' system :O) infact it is probably costing me money running my old system!!! Shock! Horror!!!

Any comments welcome, also please feel free to check my figures.

Another though just occured to me.....how much do laptops cost to run?????

Would I be better off with one of those? I know their procesors use less power but I am unsure how much.

Food for though.

Any advice welcome.

I don't use my PC for playing 'zap em up' games or anything like that.