Here in germany
electricity costs ~$0.36 / kWh.
Let's compare
power consumption of the most talked about CPUs
i5-4670K (79W / 132W @ $240) and
FX-8350 (89W / 283W @ $200). That is 10-151W difference (121W in gaming) which when using it for
3 hours/day/year equates to $4 idle, $60 peak and $48 gaming per year (divide by ~2 for US). Wouldn't you say that is quite significant? And that is just 3 hours of usage in the evening (P * 3 * 365 / 1000 * 0.36) !
Not to be completely off-topic. I have just seen some
HSA media encoding / decoding algorithms and they perform very well (~
100% performance boost). So in the coming years, HSA might become very enticing!