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8Pack with 32 Cores!!! AMD 2990WX@4ghz AVX2 workloads workstation bundle (Upto 128gb memory :-))

I am in the same boat as 8 Pack. My customers are interested in performance. Right tool for the right job. Undervolting really would be of no benefit to my customers and doing dev work on that would be a waste of money!
 
Since when does undervolting suddenly mean losing performance? Undervolting and underclocking are not the same thing. If you're not going to overclock the 2990WX, what's the harm in trying to reduce the power draw at stock?

Or do 8 Pack's talents only work one way ;)
 
Since when does undervolting suddenly mean losing performance? Undervolting and underclocking are not the same thing. If you're not going to overclock the 2990WX, what's the harm in trying to reduce the power draw at stock?

Or do 8 Pack's talents only work one way ;)
I'm no expert but reducing the voltage enough to make a much of difference would surely mean a detrimental effect somewhere?
 
If you reduce the voltage too much the CPU could lower its speed to compensate for the lack of power, or just become unstable, but there's always an operating window that could be tweaked within. Vega graphics cards are a good example as they can be substantially tuned to reduce stock voltage draws whilst still giving the same performance.

Just because a spec says X volts at stock doesn't mean your specific CPU, GPU or whatever actually needs X volts to run at stock; variances in production yields can always affect the quality of an electronic component. This is what binning and the "silicone lottery" is all about. A spec might say X volts because it has to set a baseline to cover off variance in that yield, but parts of that yield could be perfectly happy running a couple fractions of a volt below that baseline. Arguably, too much voltage is more detrimental than not enough, so I'd suggest always try to undervolt and find your particular component's true power requirement.

It could be a case that the 2990WX has no flexibility by being a 32 core monster, or being made up of 4 very high binned 2700X units there could be a lot of scope to nudge the stock voltage down.
 
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