I wanted to post some info on my setup. I actually bought 2 10700k chips from Amazon recently. They were on a great deal and wanted to get a better chance of silicon lottery.
I have been fine tuning over the last few days to squeeze every ounce of performance out of my chip that I kept (I returned the other one).
Soo here goes.
I originally had an Asus Strix z490 ITX board after a lot of people recommended it. It is a great board... but I gotta say... not the best for my situation. I was not able to get the best out of my 2 chips I had. I often needed much higher voltage than the MSI Unify z490 ITX board so I would highly suggest moving over to MSI Unify if you are not seeing much gains out of your 10th gen chip. I can only really speak to my 10700k chips though.
To save me from writing the same thing over and over, AC in my post is All Core. and all voltage I post will be VCORE as reported by HWINF64 unless stated otherwise.
I have a slew of stability testing I do and only move onto the next test if it passes the previous test with 0 crashes, BSODs and of course 0 HWINFO64 hardware errors:
Test 1: Prime95 custom, avx disabled with ffts 4k-128k at 1min each for 2 hours.
Test 2: Real Bench Stress Test for 2 hours on 16gb option.
Test 3. Hardcore Multitasking Simultaneous Test:
-Real Bench Benchmark (set to infinite run)
-Cinebench R23 (tests for AVX as well) multithread (custom option to run for 360 min)
-1 window of Chrome streaming a 4K Youtube video (usually earth 4k 7 hour video)
-Netflix App with 4k movie streaming
-1 website with constant data streaming (I use investing.com and click on the Crypto currency page, it is constantly streaming live data from tones of different exchanges).
I do this for 4 hours.
Test 4:
I run the exact same test as test 3 but this time for 8 hours to test a full workday of stability. I also turn on my webcam and leave that on a window by itself.
If it passes test 4 with zero hardware errors in HWINFO64 I certify it stable for daily use. I did this because I use to run each of the programs separately and would notice a random error throughout the day sometimes but all the individual tests would pass fine. It wasn't until I started doing Test 3 that those errors would reveal themselves later. So I highly suggest doing something similar if you want to truly test daily driver stability.
Anyways... now that you know what I consider stable... let's talk about the chips.
2 chips, both 10700k. One was made in China, the other Vietnam.
ASUS 5.1ghz all core at llc 4, ring at 46:
Chip 1 was stable 1.415v on the Asus board. Chip 2 was stable at 1.375v.
I wasn't satisfied so I purchased the MSI board, started testing both chips. I purchased it because it seemed like ASUS went cheap and had much less power stages. MSI had like 8 or 9 so I figured the power supplied would likely be much better.
MSI 5.1ghz all core at llc 3, ring 46:
Chip 1 stable at 1.36v, Chip 2 stable at 1.295v!!!! I was pretty much jumping after Chip 2 passed Test 4 and I saw 0 errors. I couldn't believe it so I re-ran the test again and by the afternoon, again 0 errors.
I decided to go for gold and pushed Chip 2 to 5.2ghz AC... after 2 days of testing, it was stable at 1.375v. I did need to drop LLC to 1 for it to be stable. I wasn't OK with that as a daily voltage as i am sure the transient spikes were well above 1.45v but largely unknown. I would get to ~1.39 vcore under load with LLC 1 though. I thought about running it at 1.395 vcore with LLC 3 (almost no droop) but it wouldn't pass. I tried 1.4cvore with LLC 3 and it did but I am not a fan of high vcore, I'd rather have lower voltage during off-load times and slightly higher voltage under load. I know this might be different for some others but... he do you.
I decided I didn't like the 1.375v at 5.2 AC as a daily so I decided to tune my 5.1ghz OC.
I ended up with this setup setup for multipliers.
Core 0 - x53
Core 1 - x53
Core 2 - x51 (weakest core)
Core 3 - x52
Core 4 - x52
Core 5 - x53
Core 6 - x53
Core 7 - x53
1.320-1.325vcore idle LLC1 1.344vcore under load.
1.3v VCCIO
1.3v VCCSA
Under load, the system will effectively only do 5.1 AC but while not under load, you consistently get the cores hitting their max almost ever 2-3 seconds.
I also need to mention, I was able to get my vcore lower by disabling EIST, C-states, Speed Step. I do have Turbo on.
I did not enter an AVX offset as I don't do anything that really uses AVX hardcore. And Cinebench R23 does test for medium AVX usage so, good enough for me.
I am running all of this in my NZXT H1 with the stock 140mm AIO, temps don't get above 90c on the hottest core. Package temps under load at 88c. Idle, they drop down to 25c. This case is small and runs fairly hot so I am impressed with it.
I am thinking of deliding the 10700k, it really is a great piece of silicon that I got so I really want to try and push it to 5.2 AC at something much lower. I tested my system on a cold night where temps were in the single digits 5c... got the system to be stable at 1.335vcore on LLC 3, temps never got above 81 sitting outside in that cold air, so if I could get my temps down 7c-10c I think I could really push this to 5.2ghz AC at a comfortable vcore slightly higher than my current setup.
Let me know thoughts and if you have any questions!