What's the Difference in Performance and Noise Between Be Quiet Pure Rock 3 PRO and Thermalright Peerless Assassin 120 SE for Ryzen 5 5600?

Honestly, they’re both overkill since the Ryzen 5 5600 runs pretty cool. They perform very similarly, so you should just pick whichever one you prefer. The Be Quiet! brand is known for great customer service if you run into any issues, while the Thermalright is usually cheaper. You can't go wrong with either.

If you're open to alternatives, I’d recommend checking out the Phantom Spirit cooler. It's a newer model and could be a better choice overall!

Both coolers are actually quite powerful for the Ryzen 5 5600. The biggest factor you'll notice is how you set up your fan curve—different settings can lead to varying noise levels. It's worth checking out some reviews to see how they perform in real-world scenarios.

From what I've seen, the performance difference is minimal—about 1 to 2 percent between the two. So it really comes down to personal preference and aesthetics.