Really? What cards are doing 400? my 560s are doing 450, so with the reduced cost and wattage I'd be very very interested.
My RX550 with 2GB gives 420...430 h/s on "
Gateless Gate" and on "
STAK XMR". The key is "
threads=2". With its price under $100 and ~75 Watt power, I think it's a good choice now.
Claymore, please, bring back support of "Polaris 12", at least to the degree as of v9.7 !