I am running 3 r280x OC and 3 r280x VaporX with the following config
-g 2 -I 13 -w 256 --thread-concurrency 8921 --gpu-engine 1050 --gpu-memclock 1500 --gpu-powertune -20 --lookup-gap 2
After some testing, the funny thing is the 3 r280x OC are giving me 370+ Kh/s each but the 3 r280x VaporX only give me 270+ kh/s each
For other scrypt coin both type of card give me ard 725kh/s each.
Anyone using r280x VaporX have any idea?