thats actually pretty solid. How you liking the block? Id be real happy with 4.8. What voltage?For my CPUs 4.8 seems to be about where you'd need sub ambient to keep going since the vcore required goes way up. I can run my 9800x at 5GHz but it gets toasty and I'd not run it there for a daily driver.
My Optimus foundation blocks actually work really well with mine, I have sub 10 C core spread on my 7980.