[SOLVED] What RAM should I buy?

[Kiwi86]

I have R9 3900X, Asus Corshair VIII Formula and Zotac 2080Ti. I am looking between these two models.

G.SKILL 32GB Trident Z RGB DDR4 4000MHz CL16 KIT
G.SKILL 32GB Trident Z Neo DDR4 3600MHz F4-3600C16D-32GTZNC

Would I notice a big difference between 3600MHz and 4000MHz?
The difference in price between these 2 models is 150euroes

Thanks

 

[Darkbreeze]

Take the Neo, if it shows as compatible for your motherboard on the G.Skill memory configurator. Always make sure the memory shows as compliant with a specific board, not just that the specs are compatible. From kit to kit there can be wildly different compatibility even if they seem to be the same. The Neo kits are made for Ryzen platforms, so it should be compatible, but you still want to check.

I would not go over 3600mhz because the odds are that you will see the infinity fabric decouple and will pay the 1:2 latency penalty rather than being at 1:1 as you will at 3600mhz or less. While it's true some configurations can go as high as 3800mhz without decoupling, it isn't a given, and is not the norm. So unless you want to pay for a 4000mhz kit just to have to manually downclock it, I'd stick with the 3600mhz kit besides which the difference is unlikely to make major gains anyhow.

https://www.gskill.com/configurator

 

[Kiwi86]

Take the Neo, if it shows as compatible for your mohterboard on the G.Skill memory configurator. Always make sure the memory shows as compliant with a specific board, not just that the specs are compatible. From kit to kit there can be wildly different compatibility even if they seem to be the same. The Neo kits are made for Ryzen platforms, so it should be compatible, but you still want to check.

I would not go over 3600mhz because the odds are that you will see the infinity fabric decouple and will pay the 1:2 latency penalty rather than being at 1:1 as you will at 3600mhz or less. While it's true some configurations can go as high as 3800mhz without decoupling, it isn't a given, and is not the norm. So unless you want to pay for a 4000mhz kit just to have to manually downclock it, I'd stick with the 3600mhz kit besides which the difference is unlikely to make major gains anyhow.

https://www.gskill.com/configurator

Thanks for the help, one more thing thou. Would you say it would be a big difference between these two models?

https://www.gskill.com/specification/165/326/1562839473/F4-3600C16D-32GTZN-Specification

https://www.gskill.com/specification/165/326/1562840211/F4-3600C16D-32GTZNC-Specification

First one has:
Tested Latency
16-16-16-36

Second one:
16-19-19-39

 

[Darkbreeze]

Not a "big" difference, but "a difference" for certain. I would definitely not pay substantially more for one of them over the other. For a five or ten dollar difference, I'd absolutely take the kit with the tighter timings, but generally speaking the difference will probably not be noticeable to you or to most people.