Author: K. Burcham
Date: 07:52:13 10/21/05
Full System Power Loaded: Intel 2 x Dual-Core Xeon 2.8 GHz 428 watts 120 Volts/3.5 amps 135 degrees F AMD 2 x Opteron 280 (2.4 GHz) 301 Watts 120 volts/2.5 amps 115 degrees F From minimum load to full load: Intel Dual-Core Xeon 2.8 GHz, Watts increase from idle 393(3.27 amps) to full system power 428(3.5 amps). AMD Opteron 280 (2.4 GHz), Watts increase from idle 235(1.95) to 301(2.5). Two single-core 2.2 GHz Opterons only consume 10W less compared to two dual-core 2.2 GHz Opterons, while the dual-core chips provide effectively twice the amount of computing power. I found this interesting. Even though twice the Gate Switching at the transistor, very little difference in current draw. This tell me that the processors themselves draw very little of total wattage and the difference between idle current and full load currect is from the supporting components. Cost per KWH .06. If you run your computer 4 hours a day, 1460 hours a year, Typical kWh Per Year 438, it will cost about $50 a year to run your chess program. I padded this figure because of printer, speakers, power supplies etc.. Electric Water Heater, 4500 Watts, 3 hours per day, 1095 hours per year, 4928 kwh per year, Total cost per year $300. If you see any mistakes, feel free to correct. (like you wouldnt anyway ;) kburcham
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