When buying parts for a friend’s 3700X build I went for a 3200Mhz Samsung B-die kit was known to work plug’n’play with his motherboard. Cost a little more but it indeed ran at full speeds with just plugging it in and enabling XMP, no tinkering which was nice.
you’d notice a nice upgrade, worth it imo. 3200 vs 3600, smaller impact, i’d probably just get what’s cheapest.
just go to pcpartpicker and use a parametric filter to find the cheapest ram that’s in your ballpark. like the ram on this page, it will give you the cheapest ram, 2x8gb, 3200-3600 mhz. it can be customized further if you have any other specifications you want, you can see if a lower latency might be worth it for example. https://pcpartpicker.com/guide/fB6MnQ/enthusiast-amd-gamingstreaming-build
correct me if i’m wrong but b-die is only useful if you manually tweak timings, and is generally a good value buy for 3200 cl 14, but it basically runs the same or worse than just buying 3600 straight out of the gate?
B die is useful in that you have the best chance of getting a lot out of manual tweaking, yes. The amount of benefit you actually get depends on silicon lottery.
Getting a 3600 E die is slightly slower if you also manually tweak it and generally just has less of a chance to getting the best perf vs a B die.
Just setting XMP and forgetting about it is not going to get you the best performance regardless of which RAM kit you use. This holds true for both AMD and Intel chips.