https://twitter.com/Thracks/status/1324561815104356352
1) Ryzen 5000 Series doesn't need a power plan. Don't expect to see one.
2) Yes, it can clock to DDR4-4000 1:1 if you have a good sample. Upcoming AGESA work will make this easier.
3) But you CAN tweak Ryzen perf vs. power with the Win10 Power & Sleep sider AFTER you install the chipset driver.
4) Is the memory controller the same? YES.
5) Do you need a new AGESA for pre-5000 Series CPUs? No. Not really. Stay on the BIOS you have. Man shrugging
6) But ROBERT what about the VOLTS and the CELSIUSES. WHAT IS NORMAL?!?!!?! ROB HELP. See below.
7) What is the best memory to buy? TOUGH QUESTION.
He then linked this on Reddit:
What is the fastest possible RAM you can run with 1:1 fclk?
DDR4-4000. 2000MHz fclk is to the Ryzen 5000 Series what 1900MHz fclk was to the Ryzen 3000 Series. Many samples can do it, but not all. In upcoming AGESAs, we will be implementing additional tuning that will make reaching 2000MHz easier. This is not a guarantee. There is no "safe bet" that your CPU will reach this frequecy. But don't be surprised to see a bunch of people bringing that magical 2000MHz fclk home with DDR4-4000.
Okay, so what's the best price/performance?
DDR4-3600 continues to be a "sweet spot." The kits are inexpensive, widely available, perform well, and have good compatibility. Is it the best in every category? No, but that's not what the sweet spot is. 3600 is a good bet because it's a good value in perf/$ for someone who wants to plug and play. Is it the best possible performance? No. Is it close? Yes, and without tinkering.
What's the best memory, even if i have to overclock?
Probably very tight timing 3600 or 3800, just like the Ryzen 3000 Series. The timings on these memory bins can be super aggressive versus higher memory speed grades, and that usually overpowers frequency.
I only bought 3200, did i do bad?
No, DDR4-3200 is typically binned with tight timings that makes it very competitive with a weak or average DDR4-3600 kit. You're not missing out on a ton of performance, but there are gains to be had w/ OC if you're interested in it.
Did you change the memory controller?
No. Everything you know about memory from the Ryzen 3000 Series still applies. Everything. In full. Except the ceiling is now +100MHz higher @ DDR4-4000 for good samples.
8) I see this a lot: "precision boost is automatic overclocking." No. False. Wrong. Precision Boost is our boost technology. Every processor has a boost technology. But ours is unique in that X THREADS do not equal Y CLOCKS. Why? Because that is SLOW.
9) But Robert, where is undervolting? Answer: IT'S GONE. j/k. Temporarily gone for 5000 series. It'll be back in an upcoming AGESA with new functionality.

It's gonna be HYPE. Y'aint never seen undervolting quite like this.
10) fastest gaming CPU brotherrrrr