LoL ... you can go faster my dear countrymen (OP)
just do your homework & test
just don't really get it, lowest power & fastest speed .. just go as high as possible, if power is really a concern then you shouldn't be mining.
do the math, low power does NOT mean 1 is saving power. hashrates from dual mining vs power used & work out the profitability, i think my math tells me max + dual mining is ahead. ah by looking at your gpuz you will have more of a temp issue instead of power imo.
btw, there's no more or just few left of this GPU in local market, well, i do have a bunch of them.
simple rule of thumb, you want more hash from gpu, give it more power = more work, less power less work.
just find the balance.
i'd assume the power consumption is NOT accurate from you. go get a killawatt of even better a clamp meter n go clamp then come back n ask.
with 31 Celcius in an environment without Air condition, you need to stretch as much as you can from the system. Limitation to 60a circuit breaker on each line, i am able to achieve 15 sets and maxed out at 45 rigs. Power management is very crucial for my setup. Not to forget it still have to provide some juice to the rest of the building for daily operations
I am already pushing all my rigs to 80c to 89c...
The figures I am producing is from a clamp meter