How do I find lowest possible TDP?

Ok so the opencore power management guide tells me to go to Intel's Ark website and to lookup TDP-down Frequency, but the website doesn't show anything other than TDP and I'm not sure if this is the lowest or not, it's really confusing me and I'm scared of just trying things out. I have an i5-4590 and the website says the TDP is 84 watts. Also if this means that my processor doesn't support TDP-down Frequency, how do I continue because I'm confused about the steps in the guide. Thank you

submitted by /u/NunuImak
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