Gamersnexus video on memory config with Ryzen 5000
I saw Steve from GN’s video( on some quite significant performance differences between 2x8GB and 4x8GB performance differences when using Ryzen 5000
They mentioned speaking to Wendell about it and he indicated that 2x16GB of single rank was the best config he has seen. He also mentioned interweaving playing a role (I don’t understand how).
I am curious as to the fundamentals impacting this. Without Wendel’s observation on 2x16GB, I would immediately assume that GN’s observation meaning that Dual Rank memory would be faster that single rank. but I also realized that its normally the opposite.
Should I stick with my 2x16GB memory order?
I have a 5950X with a Aorus Master X570 board and 2x G-skill Ripjaw 16GB 3600mhz CL16 memory on order.
I am doing a mix of IT, media and data production work and some nighttime gaming (usually grand strategy). Getting the 5950x over the 5900x since where I live (South Africa), shipping and taxes have closed the price gap (790 vs 1050) and I would like to be able to game, while video renders run in the background. I also tend to hold onto my hardware in about 4-6 year cycles.
I would hate to leave performance on the table, since I am ordering all new parts. Also if I need to upgrade to 4x 16GB RAM later, would I be seeing a drop in performance and should I rather go with 2x 32GB now?
Anyone else have some more information about this?
Steve said in his video he does not have single rank 16GB sticks and that primarily it was more about number of sticks than overall size as the games that benefit fit in around 7800MB worth of the 16GB minimum they use so it was not a size restraint but just adding more sticks gave more performance.
If the best is 2x single rank 16GB sticks and 4x 8GB sticks have shown to be better than 2x 8GB sticks. The very best may well end up being 4x single rank 16GB sticks. But Wendell has only demonstrated a 2 slot itx board and Steve does not have the sticks to try it… Yet.
It seems like the answer is to get either a 4x8gb DDR4-3200 CL14 kit or a 2x16gb DDR4-3600 CL16 kit between what GamersNexus, Wendal, and Hardware Unboxed are saying. I think the weird part is figuring out of the 2x16gb sticks are single or dual rank but it’s unclear how to know if you have dual or single rank.
Some where else I read that 2x16gb is always dual rank and then someone else said it depends on how new the 2x16gb kits are. There also isn’t a discussion around quad rank which I’m guessing isn’t really meant for normal desktop machines but does this play a factor also for Zen 3?
No… mostly because larger capacities stress the memory controller more thus reducing ability to run at much higher frequencies . If I have that correct ? Some of the limitations are very much platform dependent . What cpu /motherboard / os / use case
I agree on “platform dependent” part, its pretty obvious and always been the case, since 8086.
But I heard that “stress controller” stuff few times already. What’s that even mean, and how it would work?
From what I understand 2x32GB DR is electrically equal to 4x16GB SR, except memory modules are further away from each other, because traces.
So how this “stressing” would lower clocks more on two modules instead of four? And I still need at least 64GB at the end of the day…