Looking for the fastest Intel DDR5 64GB (2X32GB) memory

[guruabyss]

I've been looking for the fastest DDR5 64GB (2X32GB, putting in max mem of 128gb) memory and all that I've found so far is the:

G.SKILL Trident Z5 RGB Series (Intel XMP 3.0) DDR5 RAM 64GB (2x32GB) 6800MT/s CL34-45-45-108 1.40V (Model: F5-6800J3445G32GX2-TZ5RK)

Are there faster options or is that brand/model it? Any advice would be much appreciated! 

[Shinchan0125]

Becareful.  From what i know, you cant combine2 kit of 2x32 together to make it into 128.  There are chance that it wont work.  Although both may look a like, but they are not test to work together by manufacture.

[guruabyss]

If that's the case how would I get to 128GB with 4 dimms?

[Nate152]

Hello guruabyss

If you're just gaming, you want speed over capacity. Most games only recommend 16GB of memory, so a 32GB (2x16GB) memory kit is more than enough. 32GB will let you go higher speed than 64GB.

If you have a work pc, then a 128GB memory kit makes more sense. Because of the high capacity, these memory kits are clocked slower to keep stable, and for doing work, speed isn't as important.

Your motherboard and cpu play a big role in how fast your memory can run. It would be good to know this before recommending a memory kit.

[Shinchan0125]

This is the QVL list for Z790 Hero.

I am not sure what type of board you have.  I suggest you to check your particular board QVL list.

[guruabyss]

I was looking at ROG MAXIMUS Z790 DARK HERO, upcoming Mobo for 14th gen LGA 1700. I currently have a ASUS Rampage V Edition 10, 8 DIMM slots with 128 GB of ram(CORSAIR DOMINATOR PLATINUM 64GB (4x16GB) DDR4 3200MHz C16 Desktop Memory - https://www.amazon.com/gp/product/B01BGZEQNY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1). I'm assuming if I wanted 128GB of fast ram I would have to go with an 8 DIMM over a 4 DIMM, so something like ROG RAMPAGE VI EXTREME OMEGA (https://rog.asus.com/motherboards/rog-rampage/rog-rampage-vi-extreme-omega-model/)? 

My only concern with the ROG RAMPAGE VI EXTREME OMEGA Mobo is it's older tech DDR4, PCIe 3 and 4, doesn't have any PCIe 5 slots, not very future proof if I bought that. I'm assuming they will do another RAMPAGE version with DDR5, PCIe 4&5, etc. but no idea when that will be available. 

This will be a workstation (but I will be gaming on it as well) doing 3D (Maya & Zbrush), AR, VR, AI. so it needs to be a powerhouse. I assumed tech got better and consolidated 8 DIMMS down to 4 DIMMS, looks like It's still the same with if you want super fast ram and 128 GB you gotta still go 8 DIMMS.

[Shinchan0125]

i just saw this on tomshardware....

https://www.tomshardware.com/news/corsairs-dominator-titanium-ddr5-launches-at-up-to-ddr5-8000-speed...

[guruabyss]

@Shinchan0125 Awesome find and thank you for the share!

Please anyone, correct me if I'm wrong. It seems if you want speed + large capacity (128GB+) it's better to have 8 DIMMs so you you can do a config of 2x16GB so you can get speeds of 7,000+ with a total of 128GB vs 4 DIMMs of 2X32GB with speeds of 5,000+ with a total of 128GB?

That would be the same config I have today in respect to 8 DIMMs of 2X16GB for a total of 128GB, so it looks like what was true (unless I'm wrong) back in 2016 when I built vs. 2023.

[Silent_Scone]

Hello,
You need to:

1. Purchase a single memory kit present on the motherboard QVL, do not combine memory kits.

2. The higher the density, the larger the hit to latency and frequency depending on the platform.

3. 48GB kits are available that support high memory frequency on Z790. However, most are limited to 1DPC boards.

4. For the best chance of plug and play, opt for a memory kit one or two ratios below the motherboard's maximum validated ratio.

5. If 128GB is essential, you will need to compromise performance.

[guruabyss]

Thank you for the breakdown  @Silent_Scone 

1. Purchase a single memory kit present on the motherboard QVL, do not combine memory kits.
-> I checked the QVL for the ROG Z790 Hero (99% the same as the upcoming Dark Hero) and that mem kit is good to go with that mobo. What do you mean don’t combine memory kits? If it’s the same everything (make/model/serial) why would that case a potential problem (haven’t run across this use case)?


3. 48GB kits are available that support high memory frequency on Z790. However, most are limited to 1DPC boards.
-> So the 48GB is one kit and goes back to what you said in 1. About not combining kits. So if you want 64GB or 128GB you have to find a single kit that has that capacity? Would there be any issues or limitations DPC wise with the Z790 Hero/ Dark Hero?4. For the best chance of plug and play, opt for a memory kit one or two ratios below the motherboard's maximum validated ratio.
-> So as an example if you look at the mem specs for the Dark Hero:

4 x DIMM slots, max. 192GB, DDR5
8000+(OC)/7800+(OC)/7600(OC)/7400(OC)/7200(OC)/7000(OC)/6800(OC)/6600(OC)/6400(OC)/ 6200(OC)/ 6000(OC)/ 5800(OC)/ 5600/ 5400/ 5200/ 5000/ 4800MHz Non-ECC, Un-buffered Memory* Dual channel memory architecture

So does that mean for the “one or two ratios below the motherboard's maximum validated ratio” that would be 6000 Mt/s?

5. If 128GB is essential, you will need to compromise performance.

-> As in combining kits and slower speeds because of the higher capacity? 

—

if it's better to have 2 DIMMs filled vs 4 DIMMs I would assume then this would be the better kit if I'm looking for more mem?

F5-6800J3446F48GX2-TZ5RK
Trident Z5 RGB
DDR5-6800 CL34-46-46-108 1.35V
96GB (2x48GB)
Intel XMP

But... this also looks good:

VENGEANCE® RGB 192GB (4x48GB) DDR5 DRAM 5200MHz C38 Memory Kit