06-13-2017, 04:59 AM
I'm afraid you entirely ignored the point, rjtoubib. Of course the cards are fluctuating quite a lot while running Hashcat. That's because of PowerTune. And of course you haven't experienced a fire yet, that's also because of PowerTune.
The card itself is electrically capable of drawing way more power than the cabling can actually support, making it a fire hazard. The firmware, however, throttles the GPU back when it detects its drawing too much power, preventing aforementioned fire. But this throttling means a reduction in performance. The more power-hungry an algorithm is, the harder the card will throttle. This is what is meant when atom says "The power-saving is simply too aggressive" and also when I say "It has to be aggressive, otherwise the card would start a fire."
The card itself is electrically capable of drawing way more power than the cabling can actually support, making it a fire hazard. The firmware, however, throttles the GPU back when it detects its drawing too much power, preventing aforementioned fire. But this throttling means a reduction in performance. The more power-hungry an algorithm is, the harder the card will throttle. This is what is meant when atom says "The power-saving is simply too aggressive" and also when I say "It has to be aggressive, otherwise the card would start a fire."