Energy Draw and Cost of Electric Bill

Depends on how much your electricity is and how often you run it at speeds that have that much difference. It is probably going to be a few more bucks a month

running a 60w bulb 24 hours costs about 10 cents.

Depends on the price you pay for the kWh, but the difference is barely existent.

It was more of a hypothetical processorSparrowPrince

Theres way too many factors to get an answer.

A high-end CPU uses about 100 Watts, and thats assuming 100% load. Unless that machine ends up being some kind of 24 hour video encoding box, its not going to be a constant 100% load.

If anything, the GPU will likely consume a greater chunk of electricty than would the CPU, so this hypothetical argument works better, at least for the typical person, if you were comparing GPUs.

However, i decided to create a file/media server box. Because it was intended to stay on 24 hours a day, i opted for a very low wattage CPU, an AMD E-350, which uses about 9 Watts. Not very powerful, but it allows me to run it fanless. Along with a fanless 200 Watt PSU, and six 2 TB Green Western Digital hard drives, i consume about 40 Watts steady.

Its generally only under exceptional circumstances that energy consumption should be any kind of consideration.