DDR5 Advice

[jumbalaya88]

Hi everyone. I have two questions that I'd really appreciate your help with, but let me quickly give you the context first.

My rig:

• Mobo: ASRock X670e Taichi - Motherboard Memory QVL
• Processor: Ryzen 9 7900X
• Ram: 32G 2X DDR5 6000 C36 FX B of G.Skill F5-6000J3038F16G

The mobo / processor / ram bundle came from Microcenter and the ram comes with an Expo profile that boosts the kit to 6000 MT/s. Unfortunately, the ram has never been truly stable and I want to get new ram off the QVL that hopefully will result in stability. I use my machine as a work / gaming rig so, I will also bump up to 48 or 64 GB while I'm at it.

My question:

1. Should I go for the fastest Ram possible on the QVL? I've read that higher number is not always better and that 6000 MT/s is the "sweet spot" for Ryzen 7000 CPU series. I'm not competent enough to OC the ram manually with trial and error so, I'm really aiming for the EXPO profile to work well without tweaking or manually set the kit's advertised timings in the motherboard and be done with it.
2. Would there noticeable performance uplift from DDR5 6000 to 7600 in gaming or heavy application work like the Adobe Creative Suite for example?

Really appreciate the expertise and the guidance.

 

[Woomack]

I would get something like 2x32GB G.Skill or Kingston 6000-6400 CL30/32 and RMA that 6000 CL36 kit. The main difference is that CL36 is probably Samsung based and these series had random stability issues. 6000-6400 CL30/32 are only Hynix A right now and it's the best stuff you can get.
2x32GB = dual rank, so it's slightly faster than 2x16/24GB which is always single rank.
6400 may not work at a 1:1 ratio (which is optimal for Ryzen up to ~7600+ 1:2). However, it doesn't matter much if it's 6000, 6200, or 6400 as the performance difference is ~0-1%.

 

[jumbalaya88]

Hey, thanks so much for your advice. I checked the QVL and saw only 2 chips that were 6000 or higher at 32 GB that was Hynix A:

DDR5

Corsair

6400

6400

32GB

CMT64GX5M2B6400C32 ver 5.43.01

Hynix A-die

DS

2

v

1.28

DDR5

Corsair

6000

6000

32GB

CMP64GX5M2B6000C30W ver 5.43.01

Hynix A-die

DS

2

v

2.08

They are both Corsair (not Kingston or G.Skill). Are you recommending that I not stick to the QVL and go with something like this:

• G.Skill Ripjaws S5 Series 64GB (2 x 32GB) 6400

 

[Woomack]

I had no problems with any Hynix A/M kit on ASRock motherboards. Most motherboards' QVLs have kits that were available when the motherboard was released, so not all kits are listed, as there are too many of them.
Because of how 7000 Ryzens work, it's not guaranteed that every CPU will handle 6400 1:1. If it doesn't, then you can manually set memory at 6200, and it should be fine.

These two Corsair kits are 2x32GB and should work fine. They also have the Titanium series for AMD.
G.Skill linked by you is also fine. Kingston costs some more in Newegg.