Confusion regarding power consumption using Safari vs power consumption using Opera for certain websites

It may be the video encoding and compression is different between the sites. The browsers may be handling or processing the Javascript code differently. Plus advertisements and trackers may play a role as well. Some sites may design their website with one browser in mind and let the chips fall as they may with other browsers. How each browser is compiled and coded can make a difference as well.

Browser configuration settings and even extensions/plug-ins can make a difference.

This is nothing new and has existed since the early browsers in the 90's. You are never going to have an app that will be good for everything (or in this case every website).

Hi there, I can't exactly explain why, but I do know why on a purely programmers way, but I find Brave browser to be more efficient than any other browser. But have not measured it like you have.

Odd you might say that it benchmarks slower than the rest but in reality is the fastest for most pages, onr reason is the superfluous Adfs & Tracking it cuts out... here was after just8 months of use...

FWIW, I think this is a case of the user overthinking the situation. There are many factors that affect power consumption. Maybe the site is doing some caching, client side computations, etc. at the time you are checking the power consumption. If you are doing exactly the same thing, and your computer is doing exactly the same thing, and the server is doing exactly the same thing, and the browser being used is doing exactly the same thing, do you observe different power consumption? Also FWIW, I use FireFox and have never had power use issues.

Thanks I can't test with no Laptop, but I suspect differences in GPU use, if it's an Intel Mac you might glean something from Intel Power Gadget...

Intel® Power Gadget

FWIW, as Bob explained, there are a number of factors as to why one browser performs differently on different websites than another. Basically you are "tilting at windmills". You should pick the browser that you like the most. The differences in energy use is minimal over the long haul.

mrmagnetoman88 wrote:

Thanks for your response, dialabrain. If I may ask, which web browser(s) do you use and what's your battery life typically like using your web browser(s) of choice?

You're welcome. I'm probably not the best person to ask about battery life since I've never paid attention to it with any of my laptops since 2013. As far as a browser, I use Firefox as the default browser 99.9% of the time. Primarily because of a couple extensions that are available.