I saw someone bring up LLC / vdroop earlier in this thread. Voltage droop is not some engineering failure, or fault of a "VRM that can't keep up". Droop is created on purpose, in order to fight the potential of large voltage swings that occur with transient loads. At the same set voltages, a "flat" droop curve will have higher power consumption because of higher voltage, and will have VERY high transients when a load disappears, compared to a "normal" droop curve, which will operate at lower voltage under load, so when the load disappears, the transient will be better controlled. Sure, you can set a "flat" droop curve and set lower voltage, but then you get negative transients when a load begins, which can cause a system crash due to low voltage. Again, a "normal" droop curve fights this, because it will be idling at a higher voltage (provided you didn't lower it the same amount as a flat droop curve).
Ultimately, I'd argue that you need SOME level of droop. Enough that you have favorable transients, but not uncomfortable amounts of idle voltage if you are pushing very high frequencies that need high voltage.
I have an older FX-8150, and the board I have kinda sucks in that in only offers "offset" style of voltage control (ASUS 890GX based board). It's not the best chip either. It's running about 4.5GHz with a "normal" droop curve. It runs about 1.47 volts idling, but under load, it droops to about 1.35, so both transients are handled well. It's a +0.275 offset.
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