Scrypt-jane with modified nFactor runs very lightly during the start. The heat and power consumption will rise as hashrates go down due to the modified nfactor.
It keeps my older cards and my R9 270X cooler.
Currently, the R9 270X, gets about 6x more hash compared to scrypt, running @ 63 °C, 10-12 °C cooler as usual
the R9 290, gets about 8x to 9x more hash compared to scrypt, running @ 84-85 °C as usual
is no 6X more, is my setting wrong? can you post your .conf ,thank you.