Yes, it is a suitable silicon.
Yes, it is a suitable silicon.
I achieved around 5.0GHz with the 7800X. The custom water cooler handles 120 + 360RPM for the CPU only. Running at high stress around 90°C isn’t extreme for this 3.5–5GHz setup. My concern is whether this performance comes from exceptional silicon or solid engineering.
About average to solid performance. I've checked 7800X models capable of 4.9Ghz at 1.25v compared to yours at 1.385v. How are your temperatures during a typical 15-minute stress test?
It's really hot, right? You might want to lower the voltage a bit to keep things stable. If you don’t plan to upgrade and just want it to run until it fails, go for it. I used an i7 920 with 4.5Ghz clocking at 1.576v and custom water cooling for six years. Eventually, it stopped working in 2014. Even with a newer i7 4770k, I couldn’t match its performance.
It looks fine. You might consider reducing the voltage for cooler temperatures. Alternatively, you could reset that puppy. Or perhaps adjust it to around 4.8/4.9ghz—you probably won’t feel a performance change and could lower it by about 0.1v.