AMD 5570 & HD4650 can use them together was not?

[alotdv]

I am using a VGA AMD HD_5570 and runs smoothly with oclhashcat. I have added to the system install AMD HD_4650. When I run in oclhashcat reported as it only get a VGA HD_5570.
5570 & 4650 can not be used together? linux or windows and any supported version of Catalyst for HD_4650?

I use both Linux and Windows, Catalyst 12.3 and 0.07 oclhashcat

I might be adding a HD_6770 AMD, whether HD6770 can be used with AMD_HD_5570 not?