VECTORS4 might be faster for 69xx users though, when combined with a smaller WORKSIZE.
Ubuntu 10.10
Catalyst 11.3
SDK 2.4
6970 @ 940,1375
Phatk 2.2
315.5MH/s DEVICE=0 AGGRESSION=13 BFI_INT WORKSIZE=64 VECTORS4 FASTLOOP=false
414.2MH/s DEVICE=0 AGGRESSION=13 BFI_INT WORKSIZE=128 VECTORS4 FASTLOOP=false
321.1MH/s DEVICE=0 AGGRESSION=13 BFI_INT WORKSIZE=256 VECTORS4 FASTLOOP=false
422.8MH/s DEVICE=0 AGGRESSION=13 BFI_INT WORKSIZE=64 VECTORS FASTLOOP=false
423.5MH/s DEVICE=0 AGGRESSION=13 BFI_INT WORKSIZE=128 VECTORS FASTLOOP=false
420.9MH/s DEVICE=0 AGGRESSION=13 BFI_INT WORKSIZE=256 VECTORS FASTLOOP=false