In a laptop based on an i3 processor, there is a 4Gb memory bar, which is better to stick a second 4Gb or 8Gb bar?

Question

Iron

Notebook ACER TravelMate TMP278-M-30ZX https://www.citilink.ru/catalog/mobile/notebooks/4...
the only thing was the HDD was replaced with an SSD. Windows 10 operating system.
Why is this question at all, they say that if I put the second bar of memory of the same amount, it will work in dual-channel mode, rather than if I put the second bar 8Gb (12Gb in total), then I will lose 30% of performance, how true is this statement and what is the best option to choose? By the way, I'm not sure that I will find the same 4Gb memory bar with the same timings...

Answer 1

the second time I see this question
how about freelancing?
why don't you order a revision?
do you think what to suggest: what kind of code or something that is solved in 5-20 minutes and fully adapt the site is the same thing?