I tested both at the 3600's voltages and timings, and at the 3600x's voltages and timings, with the coolers. Prime95 set for maximum heat. This was all gone on a Gigabyte X570 Gaming X motherboard, and Thermal Grizzly Kryonaut paste. Boost was set to all cores capable.
The tested coolers are the Wraith Stealth that comes with the 3600, the Wraith Spire which comes with the 3600x, and my spanky new Noctua DH-N15 Chromax that's going into my new media center upgrade next month. I tested underclocks and overclocks on the Noctua only.
Side note, it's really strange looking at a Noctua sink and fans that are black instead of manure brown and beige.
My results, temperatures are a reported high AFTER throttling stabilized. (earlier values discarded)
3600 -- 94C, throttled to 4150
3600x -- 96C, throttled to 3867
3600 -- 95C, throttled to 4150
3600x -- 96C, throttled to 4100
3600 -- 94C, 4200 no throttling
3600x -- 96C, throttled to 4050
3600 -- 94C, throttled to 4200
3600x -- 95C, throttled to 3950 ???
Noctua DH-N15 Chromax
3600 -- 65C, 4200 no throttling
3600x -- 68C, 4200 no throttling
3600 -- 72C, 4400 no throttling
3600x -- 76C, 4400 no throttling
3600x timings at 3600 voltages
3600 -- 68C, 4400 no throttling
3600x -- unstable, unable to run test
4.6ghz max boost at 1.5v
3600 -- 78C, 4600 no throttling
3600x -- 94C, throttled to 4233
Conclusions? Well, it's clear to me that they're really at the core the same part, and the "real" difference between them is the cooler it comes with. 50mhz performance is within the acceptable limits of most binning processes, and of course ALL the Ryzen 2 chips use the same chiplets...
But the higher speeds and voltages bring about an interesting possibility. You know how when overclocking to get stability you often just strap more cooling to it and up the voltage? This is because lower binned parts can often stabilize with more voltage...
LOWER binned parts... Given that in terms of TDP the 3600x is a 95 watt part, and the 3600 is a 65 watt part, is it possible that the 3600x is in fact the LOWER binning?
From the day they were released I thought it was ridiculous that the 3600x was $50 more for a 200mhz boost limit increase and sucking nearly a third more juice / making a third more heat. That felt like it was just a really crappy and inept overclock. I mean seriously a 25% price increase for a less than 5% clock speed increase whilst having a 45% increase in TDP? Something is WRONG there.
Well, what if the "x" is just a crappy overclock of a lower binned part than its 3600 cousin. That I got the 3600 to 4.6 with no throttling whilst the 3600x crapped out and started spewing heat like crazy could be an indication of this. They may have found a way to sell the inferior part for more money! Just put a bigger sink on it and throw more electricity in there.
Though my sample pool is too small to say for sure. I could have just "gotten lucky" on which chiplets I had in front of me. This is NOT proof by any measure and is all just conjecture, but it makes sense.
I can see why most of the trustworthy Youtubers (Jayz2Cents, Linus, Stephen from Gamers Nexus) are saying don't waste the extra money on the 3600x.
Side note, it's also comedy when I trust people on Youtube more than I do "real" writers from "real" publishers. When it comes to 'tech? Damned straight skippy!