Hi Guys,
My Ryzen 3600 runs now at 4400 MHz at 1,24 Volts with air cooling (Scythe Mugen 5), it needs only 15 watt in ideal. It scores 4000 Points in Cinebench R20. It stays cooler than with the standard settings and needs of course less Watts under load. I not tuned my Ram timings yet, I only activate the XMP profile (3200 MHz cl16). I tested it with Prime 95 1 hour. (max temp 75 °C, v drop 1,244 - 1,231, max 91 Watt SMU)
I'm not sure if my CPU EDC is holding me back, it maxed out at 90 A under heavy load, cause of the low CPU Voltage.
I'm pretty sure that this OC is better than run standard settings.
I tested 4,5 GHz at 1,3 Volts, it was stable in all benchmark test, (Cinebench R20, SiSoftSandra, UserBenchMark, 3DMark TimeSpy, FireSrike) but I don't tested it with Prime, it was getting a bit hot without an AIO (85 °C till Cinebench), and I don't want to toast it directly, so I would recommend using an AOI at those Voltages.
I tested 4,5 GHz at 1,3 Volts, it was stable in all benchmark test, (Cinebench R20, SiSoftSandra, UserBenchMark, 3DMark TimeSpy, FireSrike) but I don't tested it with Prime, it was getting a bit hot without an AIO (85 C° till Cinebench), and I don't want to toast it directly, so I would recommend using an AOI at those Voltages.
At my 4400 MHz OC, I started at 1,2 Volts, but it was completely Prime stable at 1,24 Volts.
I tested out the max CPU voltages at standart settings under Full load (Prime 95), with a x570 chipset and bios from August 2020, my Voltages jumpes around at 1,26 - 1,32 Volts, but most of the time it's near to the 1,26 Volts at 3990 MHz (max CPU Temp 80 °C).
So I think 1,26 Volts is the minimum all core Voltage under maximum CPUload from AMD, so completely Save.
1,32 Volts was the maximum Voltage under maximum CPU load, but it was not often there and only short.
So I think 1,26 Volts Is total save all core voltage, I would not go over 1,3 Volts, if you want to be sure that your CPU don't degenerates fast and keep your Temps under 80 °C.
Nobody knows exactly how fast these chips degenerate, but every CPU degenerates over time of using, also with stock voltages and settings, heat and voltage makes it happen faster and nobody knows with how much years we are ending up, at what heat and voltage, without bumping it a bit up to be stable again, because if u set the perfect voltage where your CPU is stable, you have no headroom for degeneration, like with stock voltages.