Hi, I'm having this issue with maximum memory clock on my RX 5700xt when I turn my configuration for 144hz.
When the configuration stay on 60hz it works fine, but when change to 144hz the memory go high on idle. I tried 120hz and it's seems like ok, but not, because when i trie to watch some videos on YT, twitch or whatever I have on my computador like a movie with Classic Media Player it gets maximum memory clock again.
I only use one monitor, I tried HDMI cable and Displayport. Displayport is better because it ''support'' 120hz on idle mode without maximum clock. On HDMI cable on 120hz, it gets maximum clock instantly.
I updated my driver for the latest one (and it said that was fixed, but it's not). I still have this problem.