[foolmeonce]

> A typical consumer router will take up something like 5-10 watts.

You demonstrate a good worst case, but the article writer wants to use more than 10 gb/s so he can't actually use your typical router, he can have 15 gb/s with the MikroTik CCR2004-1G-12S which has an unknown idle W and a max around 50W.

Looking into the problem, I can't really determine why I should upgrade to 10 or 25 gb/s, but if I wanted to do so now I would rather buy components I could reuse than buy a router that will be inefficient for its entire service life.