Can someone help me ?

I have Rigs with R9 280x 3GB / 290x 4GB and Rx 470 4GB

I mount a R9 280x and Rx 470 4GB, for configuration tests.

I have a problem, Mining with Claymore 9.3, I have more hashrate with a R9 280x than Rx 470.
What do I have to do this?

R9 - 25 Mh / s
RX-21 ~ 22 Mh / s

Configuration File.

-epool exp-eu.dwarfpool.com:8018
-esm 0
-mode 0
-epsw x
-eworker R9-AMD
-allcoins exp
-dpool stratum+tcp://dcr.suprnova.cc:3252
-dcoin dcr
-dcri 22,23
-ethi 10
-etha 0,0
-asm 2

http://i.imgur.com/QrkTqQJ.png

http://i.imgur.com/Rs7UaO1.png