High htt doesn't strain on anything to my knowledge. I prefer to do most of my clocking with htt so I don't do huge increments.

Side note for my current testing, 4080 cpu and 3060 nb. I almost have all my memory speeds over 10k mb/s according to everest and my memory is only at 1020mhz. I think it got all my L3 speeds above 10k mb/s though, latency was only at 4.9 since the core isn't as fast as when I tested before. Temp sensor also isn't frozen anymore thankfully, just a reboot and it was fine.