That depends on how man cards your running. if your running six cards its an extra 18 mhs. which is pretty good! but this is why i mine with RX 580's... the have a bios switch on the card specifically for mining. that eliminates the need for all the undervolting and overclocking messes... longevity is the name of the game here and ive found that these types of things dont do well for the cards... it can fry them over time... super stoked you found all the tutorials helpful. Post back and let us know how your rig is doing