I chose according to the criterion "price / volume". I wanted to buy 2x4 GB because of their possible work in dual mode. I must say right away that in dual mode, the speed of copying (copy) files inside the RAM mainly increases (for example, in single mode it was 7000 mb / s, in dual it became ~ 10000 mb / s), and the speed of read and write increases by only 200-300 mb. Therefore, I decided to take it for 8 GB, then I might buy another one for 8 or there will already be DDR4, we'll see. The memory is now 12 GB along with the old opera 2x2 GB, enough for browsing with 70 tabs, a bunch of progs, no need to cautiously climb into the task manager, see how much opera is left free. By the way, it's strange, an 8 GB stick works for me with old sticks in dual mode, although there are only 3 sticks! The speed of copying has increased noticeably :))
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