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POWER CONSUMPTION :: |
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| Power consumption figure is provided by manufacturers. However, IMO, manufacturers didnt provide actual power consumption for all models, but only the maximum consumption for the highest model available. Actually, when clock frequency increased (transistor switching speed increased) more heat will be dissipated. It seems that the figure provided by reviewers are more accurate as they include the power consumption in various clock speed. Xbitlabs is chosen as my reference as it provides me the most information. However, I don't think Xbitlabs is 100% correct too since their results appeared differently from other reviewers' site, such as Anandtech, Tomshardware, Lostcircuits and etc. Hence, I've written some short notes if the results isnt match with other websites. | ||||||||||||||||||||||||||||||||||||||||||
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* Issue on power consumption of 6xx series : 1. Xbitlabs recorded a lower power consumption of around 10W compare to 5xx. 2. Tomshardware said there's no difference between E0 and F0 revision. 3. Anandtech reported a higher power consumption on full load (not idle) of 6xx compare to 5xx series. ** Issue on power consumption of Venice E3 : 1. Xbitlabs recorded a higher power consumption of around 7W compare to D0. 2. Lostcircuits reported a lower power consumption on full load for Venice compare to D0 (1-2W lower). Extra Information on Maximum Power Consumption : I've posted in Pcmoddingmy by referring to www.Sandpile.org. It can be found here. Cool n' Quiet: It allows another 7W drop according to tomshardware chart . |
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| Advantages of having low power
consumption : 1. Save electricity. 2. Does not require expensive cooling 3. Cooling system less noisy 4. Less dust in yr casing since no nit so powerful fan. 5. CPU lifespan is longer 6. Can overclock high enough without worrying about massive heat. What is the relation of Power Consumption and Heat Emission: 1. The formula to calculate power consumption is P= IV, where P = power, I = current and V = Vcore. 2. Power has a unit of W, and heat emission per second also have the unit of W. 3. Power consumption = heat emission. If u work more, u get hotter and sweat more, simple as that. How is Power Consumption related to CPU temperature: 1. CPU temperature depends on ambient temperature, heatsink and power consumption of CPU. 2. If ambient temperature and heatsink used is the same, temperature increases when power increases. 3. Assume ambient temperature and heatsink is constant, T= P x H + A. 4. where T = CPU temperature, P = power, H = heatsink C/W, A = Ambient temperature. 4. Assume H = 0.30 (medium performance aluminium heatsink) and A=35C, T=65C when P=100W. |
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| DISCUSS POWER CONSUMPTION HERE or HERE | ||||||||||||||||||||||||||||||||||||||||||
Copyright © 2005 Chan Yee Yong a.k.a. charge-n-go |
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