Soldato
Yes. And sales tax applies to all of these cards, does it not?
If sales tax were 20%, the B580 would be $300 inc. tax, and the 4060 would be $348 inc. tax.
$290/$250=1.16. The RTX 4060 is 16% more expensive before applying sales tax.
$348/$300=1.16. The RTX 4060 is 16% more expensive after applying sales tax.
Whether you include sales tax or don't include sales tax, it has absolutely no impact on the relative pricing of the products.
The price of $250 doesn't include sales tax. In the US sales tax varies from state to state. The lowest rate is 0% (in four states) and it goes as high as about 12%.
Because of the variation, US prices are always given before tax. UK prices legally have to be given inclusive of VAT (unless exclusively selling to non consumers).
People in the UK often compare tax free prices in the US with taxed prices in the UK. The difference is much bigger than the difference between our tax free prices.