What gives the bitness of the bus in the video card?

Question

Iron

Memory bus (width)
How much will I lose by buying a video card with a bus width of 256 bits, if it is possible to buy the same one with 320 bits?
Should I bother looking for a card with a high bit rate? Or just take a good card with 256 bits?

Answer 1

In isolation from everything else - a useless value, meaning absolutely nothing.
A 320-bit bus is a very rare occurrence. GTX 470 and GTX570 in my opinion were the last. What do you think will happen if you put some small 750 ti with a 128-bit bus next to it? For example, here is the first comparison from Google: https://www.hardwareluxx.ru/index.php/artikel/hard...

Answer 2

Choose by money, not by bus bitness - www.thg.ru/graphic/luchshaja_videokarta_dlja_igr/i...

Answer 3

You need to choose according to the tests in the first place.
Much depends on the technology of the production process.