RAM for Raptor Lake upgrade

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I will be building a new PC when Raptor Lake is out. Last time I built one was 2013 and I am very out of the loop with what to get.

The choice is between 32GB and 64GB. I am thinking more along the lines of 64GB for my use cases. This is gaming but also work. Lots of compiling big custom C++ game engines (and Unreal in the future for other projects), packaging games (current project actually requires 64GB RAM!) Linux images and all sorts. This could take some time even on the 16 core threadripper PC I used to have at my last job.

I see that the 32GB kits tend to be faster than the 64GB ones. I thought maybe I can get 2xpacks of 32G RAM, for 64GB, but not sure if that is a bad idea. On the subject of speeds as well, does it make much difference?

I was looking at getting perhaps the Corsair Dominator Platinum 2x32GB DDR5 5600MHZ if I went for just the two stick solution. Pricey, but not too fussed about price if it makes a difference. If you're paying a premium for no reason though..then I would reconsider. I see the 32GB kits have a higher MHZ, but that is not out of the box and requires overclocking?

Are there any other recommendations? Advice? Thanks a lot :).
 
From what I've seen with 12th gen, you might as well just buy a half-decent 5600 kit, there's not much benefit from premium memory. But, the benches I looked at were primarily gaming, so there may be some productivity tasks that scale with RAM speed. Compilation and Unreal do not appear to be one of them (article). Have seen nothing for 13th gen yet.
 
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13th also not scaling that much even with 7200mhz C34 I am going through all the shbang Thursday in my 13th gen Video...... A couple of instances only a decent boost...thats it!!
 
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I think I would need 64GB for my uses though over 32GB (2x32GB or 4x16?). The fastest I have been able to find for 2x32GB is the 5600 MHZ one. Looking forward to seeing what the benchmarks say.
 
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