x570 64GB Ram Questions

Hi,

Will be building a x570 (creator or taichi) system.
I need 64GB RAM performing at the highest speed possible.
Not sure what to do.

Choices:

1. 4 x 16GB (they all seem to be Dual Sided) @ 3600 such G.SKILL Trident NEO F4-3600C16Q-64GTZN


2. 2 x 32GB @ 3000 such as VENGEANCE® LPX 64GB (2 x 32GB) DDR4 DRAM 3000MHz CMK64GX4M2D3000C16

Something else!

Which will perform better and let me keep Ram speed at 3600 or better?

Thanks!

why do you need that much ram its a waste of money and surely wont run fast ryzen will always be a 8X2 system you'll just cause headaches not doing so and yes there are a few people on 16X2 or 8X4 but usually arent high clocks unless youre the manual setup type

I own the 3900x.
I need 64GB despite the reasonable comments about HEDT.

I use very very large "big data" datasets and heavy video processing.
But I also will use this machine as a daily driver.

So - I hoping someone can address the question I asked...rather than telling me to build a different machine - which is no longer an option!

Your question was phrased with a choice of 2 boards, the natural assumption is
that you have yet to purchase components for your build. The 3900x is a very
impressive bit of silicon which in raw performance actually matches and even
beats the 2950x. The problem with it is that it's still a consumer grade CPU
and as such only has 2 memory channels. Your best option will always be 2
modules with regards to speed but 32gb sticks are still in their infancy and
may not be compatible with AM4 just yet. Given the 3000 series is still having
issues AMD will not likely focus on adding support for new, highly niche tech
before addressing other issues. This means your only option is 4x16gb modules.
This will tax the IMC much more than 2 modules and could limit your maximum
frequency. That being said, there are quite a few reports of users hitting 3600
and above with all 4 DIMM slots populated, the question is, will it work with
16gb modules. If I were you I would reach out to ASRock via a support ticket:

https://event.asrock.com/tsd.asp

Inquire if they have or can test a 64gb config @3600 or greater and let you
know what RAM would be most capable. Be sure to list your board choices and CPU.

Thanks for your thoughtful and helpful reply.
With hindsight, I should have been explicit on the fact that I owned the 3900x (but not the mobo, yet -- am waiting on the x570 creator to be released since I really want TB3 and 10GB Lan).
Sorry to all.

A couple of things to note:
- the Gigabyte x570 QVL shows ZERO 32GB sticks that can punch past 2666.
- the Gigabyte x570 QVL shows a few 16GB models where 1,2 & 4 socket support is indicated. Including a HyperX 64GB Kit @ 3200Mhz

Strangely, the Asrock QVL shows a kind of contradictory entry:
It lists the Trident Z -- F4-3600C17Q-64GTZSW which is a 64GB Kit
--- but strangely then says it only supports 2 sticks. Which makes no sense to me.

Finally, GSkill has a 64GB, CL16, 3600Mhz Kit that it claims is "Engineered and Optimized for full compatibility on the lastest Ryzen 3000/x570 boards", but only lists the ASUS and GIGABYTE x570 motherboards on its QVL. Even though its not listed on Gigabytes QVL but is listed on ASUS's.

Round and round in circles I go.

I'll try reaching out to asrock as you suggested.

Thanks.