Originally Posted by rv8000
Without average clocks from the benchmark runs (resetting hwinfo for the duration of the benchmark) for both CPU's you don't have a super accurate way to compare the previous CPU with the new one. The newer CPU may boost higher with the updated 184.108.40.206 ABBA based bios but it's average MC turbo may be overall lower than the previous CPU for dozens of reasons
As long as all the other bios settings remained the same between testing, comparing overall average boost clock under multithreaded loads would probably give you the best information. Now for a list of things that could be causing the score difference:
- chipset driver differences
- bios change
- mismatched mem clk and fclk
- different memory timings
- windows power plan settings
- silicon quality requiring higher voltage for X clock speeds causing more clock dips due to hitting boost limits
- various driver changes and or background programs
When all is said and done, a 200-300 points difference in Geekbench is a ~1-2% performance difference, seems a bit extreme to return the CPU over unless you are competitively benching. In that case you wouldn't even be running the cpu multi at auto so the stock performance with vsoc and vddg changed is moot.
I will use hwinfo and see if I can get a better idea of the average operating frequency. But when watching in ryzen master it seems to sustain its higher clocks. But maybe its dipping between frequency updates in Ryzen Master?
As for the other differences:
The system/software differences are not a factor as both chips are being swapped out and placed into the same system. They are the variables. I make sure I reset the bios between swaps and then load up a profile that is common to both of them when swapped. So the Ram frequencies and bus frequencies are all the same.
As for silicon quality, am I incorrect in assuming the chip that operates at a higher temp would be the one that requires more voltage? Also is there any other voltages I should keep a eye on while its operating other then the core voltage?
I am pretty sure I shut down a lot of the back ground processes but I will double check tonight.
Are there any recommended benchmarks I should run. I am running a few games (FarCry 5, Shadow of the Tomb Raider), Geek Bench 4/5, and using Prime 95 as a stress test.
Thanks again for the feedback.