Question 2x ram vs 1x

[.valkyrie.]

hi , i have read some articles about ddr and ram...
if i'm not wrong, ddr4 2666mhz transfer rate is around 21GB per scc

for 16gb, if i use 2x8gb , do i get 42 GB and if i use 1x 16, i get 21gb transfer rate btw ram and cpu?
or its overall?

 

[siaan312]

more sticks is better.
2x8 is better than 1x16 by a long shot.

in some workloads, especially on ryzen its up to 15 or even 20% faster.

 

[Kevinoli2005k]

I don't suggest single channel at all. Dual channel(Using 2 sticks) synchronises better with your CPU Especially a Ryzen one

 

[USAFRet]

hi , i have read some articles about ddr and ram...
if i'm not wrong, ddr4 2666mhz transfer rate is around 21GB per scc

for 16gb, if i use 2x8gb , do i get 42 GB and if i use 1x 16, i get 21gb transfer rate btw ram and cpu?
or its overall?

Single channel vs dual channel.

Dual is better and strongly recommended, but not "double".
About a 15% difference.

 

[.valkyrie.]

thanks alot

i am using i5 9300

i dont know why , but price for 16 gb vs 8+4 gb are the same here...
what would u guys suggest?
for a specific price
should i go with 1*16
or
12 GB dual channel?

 

[siaan312]

thanks alot

i am using i5 9300

i dont know why , but price for 16 gb vs 8+4 gb are the same here...
what would u guys suggest?
for a specific price
should i go with 1*16
or
12 GB dual channel?

well, do you need the 4 more gigs? but honestly all of those aren't recommended, get an 8x2 kit, it wouldnt be anymore than a few dollar more.

 

[.valkyrie.]

honestly i dont

well, do you need the 4 more gigs? but honestly all of those aren't recommended, get an 8x2 kit, it wouldnt be anymore than a few dollar more.

honestly? i don't know if i need it or not...
i notice , in call of duty ,my Ram is 7.9/8gb
same goes for gears 5
my friend with 32 GB pc told me when he run COD warzone, its 13/32
i have disabled SSD usage as ram since its ganna destroy its lifetime... but my Gears5 didnt run at all, so i had to enable it by allowing it to use my HDD ...
so what would u suggest? comparing 4 GB more vs dual channel?


sometimes , iuse my laptop on battery , i wonder using two ram effect it alot ? comparing the performance i get by dual channels

p.s: why 8+4 is bad? same brand and same frequency?
i remember my Lenovo z500 had 4+2GB (6 in total) with no problem