DDR5 6400 CL32 is the sweet spot for Ryzen 9000 series.

Like someone mentioned, 6000MT/s is the safe route, but I gotta say I disagree with playing it that safe for a 9900X! This CPU is a total beast and the memory controller is usually way more capable than people give it credit for. I've been testing some Hynix A-die kits and the results are just amazing when you push for 6400.

• TEAMGROUP T-Create Expert Overclocking 10L 32GB DDR5 6400MT/s CL32 - love this kit because it's low profile and the overclocking headroom is insane.
• Lexar Ares RGB 32GB DDR5 6400MT/s CL32 - the performance is incredible for the price and the heat spreaders actually work. Tbh if you're building high-end dont settle for the standard stuff. Going for 6400MT/s with tight timings gives you a noticeable boost in 1% lows. Just grab one of these and enjoy the extra frames... you wont regret it!

DDR5 6000 CL30. Choose brands like G.Skill, Corsair, TeamGroup.

DDR5 6000 CL30 or CL28, lower CL is better.

> @4tenntm DDR5 6000 CL30 or CL28, lower CL is better. To add to the point above: i just saw this thread and wanted to chime in... staying at 6000MT/s is really the safest path for most people imo. I am very satisfied with the system stability at those speeds without any weird crashes. Compatibility is my main concern when building, so checking the motherboard QVL is basically a must. It is the best way to avoid boot issues or random blue screens. Better safe than sorry when you are dealing with a new platform like this, dont want to risk any instability.

The G.SKILL Trident Z5 Neo RGB Series (AMD Expo) DDR5 is the best choice.

Finally someone says it. Ive been thinking this for a while but wasnt sure.

DDR5 RAM for G.Skill, Corsair, Teamgroup is a good choice.

Rumors said Ryzen 9000 series CPUs will supports DDR5-6400.