Vice versa, not sure how you're exceeding an additional 30% power on TDP. While you run into scenarios where you'll end up using less power increasing TDP (versus the percentage increase), when it goes the opposite direction it shouldn't increase power usage more then 30%. For you a 30% increase in TDP increased your power by 50% and had almost no impact what so ever on your hashrate.
There are definitely algos that use more power then Equihash, SIB for instance. Equihash also has a weird quirk where there isn't a direct correlation between reducing TDP and reducing your hashrate, almost every algo has a direct correlation between power usage and hashrate, at least for Nvidia. With AMD you can reduce your core voltage at the same TDP level (which effectively increases your TDP headroom without increasing power).
That's neat you have GPUs... You aren't the only one nor is that a lot.
And yup, DNR has been around for awhile and it's lackluster compared to alternatives even with the modded miner. I didn't say anything because SP likes getting everyone excited before they figure out what they're doing and buy his miners. There are easy ways to check out earnings though without doing all of that, but I'll let you figure it out since you have 21x1080tis.
Go do some tests on a 1080 Ti. The results will speak for themselves. Hash rate also does not increase linear with power usage, this has been true for the algos I have tested.
Wattage plays an important role in profitability. It not all about trying to get the highest hash rate with disregard to power usage.
This is even more true for people who have to pay a higher electric rate. In Europe the electric rate is 0.20KWh, compared to 0.12KWh in the US.
Even the PSU play a factor in power consumption. Bronze are 85% efficient and go up to 94% efficiency with Titanium rated PSUs.
Yeah, no shit? It's what I've been talking about for years in this thread. The 'electricity efficiency' argument is as old as mining. Pretty sure somethings messed up with your rigs if you're almost doubling your power usage with 30% TDP and then getting only 10% hashrate out of it.
You haven't really said anything out of the ordinary except Skunk might function in a similar way to Equihash (BTW if you're talking about the consumption and operability of algorithms talk about that instead of the coins, multiple coins can use the same algo), which I'm pretty sure isn't true.