[SOLVED] Best RAM for i9 10900k?

Solution
As much as you're willing to spend - literally... a balance of high frequency and low timings.
If you can afford 4000 CL17, then get 4000 CL17... though you'll probably only notice a difference during benchmarks.

Intel builds don't require much manual intervention in tuning ram, nor are they as picky about the kits you'll use... at least for now, since they're also looking to do a Multi Chip Module design with future cpus.
Ever since Skylake and all its refreshes, their cpus have scaled up with faster ram, but with diminishing returns the higher you go. That's why I said, "As much as you're willing to spend."

If you need a value option, then 3600 CL16 is in a good spot right now.
As much as you're willing to spend - literally... a balance of high frequency and low timings.
If you can afford 4000 CL17, then get 4000 CL17... though you'll probably only notice a difference during benchmarks.

Intel builds don't require much manual intervention in tuning ram, nor are they as picky about the kits you'll use... at least for now, since they're also looking to do a Multi Chip Module design with future cpus.
Ever since Skylake and all its refreshes, their cpus have scaled up with faster ram, but with diminishing returns the higher you go. That's why I said, "As much as you're willing to spend."

If you need a value option, then 3600 CL16 is in a good spot right now.
 
Solution