11-29-2011, 08:33 AM
Yes I've tried with both GPUs currently (the default), but it slows down the 5870 too much. The 6550D runs full speed the entire time, but the 5870 stalls, goes to full speed, stalls, over and over. The overall speed is about 4/5 the speed of the 5870 by itself. I just tried on oclHashcat-lite-0.08 and the same is true 
It can still be helpful if you split a hash file into 1/6th and give 1/6 to the 6550D and 5/6 to the other GPU (or with -lite, do 5/6 of the brute-force space on one GPU, 1/6 on the on-die GPU, etc).
It can still be helpful if you split a hash file into 1/6th and give 1/6 to the 6550D and 5/6 to the other GPU (or with -lite, do 5/6 of the brute-force space on one GPU, 1/6 on the on-die GPU, etc).