GamePC - Battle at 90nm : Power Consumption and Performance Compared: "Still, for a processor which has been designed from the ground up for desktop operation, the “Winchester” Athlon64 processor is a terrific achievement in terms of power consumption and heat production. Even at its highest 2.2 GHz clock speed, our Athlon64 3500+ “Winchester” chip ran exceedingly cool (testing at anywhere between 30-35C under load), which allowed our CPU cooling system to run nearly silent. When combined with a GeForce 6800 GT graphics processor, our system’s peak power consumption levels stayed at 200W and under, impressive considering the high-end nature of our system’s graphics card, hard drive, and motherboard. You don’t need an incredibly high wattage power supply for a “Winchester” Athlon64 system, just as you don’t need one for a “Dothan” Pentium-M system."