Massive energy savings the world over
An Intel representative has claimed that the Core family of processors has saved the world's economy a massive $2billion in energy savings in just two years. Writing on her official Intel blog, Lorie Wigle, elaborated on this claim. They calculated that their Core processors have saved 20 Terawatts hours when compared with what their previous generations of CPU's would have consumed within two years. They then used the assumption that electricity costs were on average $0.10/kWhr, and this gave them their $2billion calculation.
From the blog:
In 2006, Intel rolled out the Intel Core microprocessors for PCs, servers and laptops. We’ve also referred to this architectural shift as the “right hand turn” (the shift away from performance achieved primarily through clock-speed increases to improvements from the integration of additional processor cores on each chip). Intel’s engineers recently analyzed the difference in the power utilization of earlier generations of our processors, compared to the typical power utilization of today’s products - and considered the number of processors shipped and hours they were likely used in PCs, servers and laptops.
So what did we find? When we added up all the Watt-hours that were saved in the past 2 years as a result of Intel’s “right hand turn”, the calculations point to approximately 20 Terawatts hours less energy used, relative to what our prior generation of processors would have consumed in the same time window. Assuming an electricity cost of $0.10/kWhr (higher in some places, lower in others), this equates to $2B in energy cost savings to the global economy.
This is no small figure - it’s a significant amount of energy savings, and an example of what technology innovation by the ICT industry can do to improve energy efficiency on a large scale.