And 20% of the cost is the electricity to use the product, so that should be discounted if you’re comparing buying new to reusing an older computer, and you should compare the power efficiency.
Assuming an average four year replacement cycle (https://www.statista.com/statistics/1021171/united-states-el...) and excluding use phase power use, we can napkin math annualize it to 243 * 0.8 / 4 = 48.6 kg co2E ~= 5.5 gallons of gas per year ~= 1.2% of average annual passenger car gas consumption.
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I should add that this represents 6% of the 443 gallons the average car uses per year. https://afdc.energy.gov/data/mobile/10308
And 20% of the cost is the electricity to use the product, so that should be discounted if you’re comparing buying new to reusing an older computer, and you should compare the power efficiency.
Assuming an average four year replacement cycle (https://www.statista.com/statistics/1021171/united-states-el...) and excluding use phase power use, we can napkin math annualize it to 243 * 0.8 / 4 = 48.6 kg co2E ~= 5.5 gallons of gas per year ~= 1.2% of average annual passenger car gas consumption.