If you are talking about GPU mining then NO its not. It needs to be properly coded to dual mine. And I think both algos are mem intensive.
Just try it, the Nicehash Windows nheqminer 0.3a and their standard miner, for BTC.
I was astonished how well it works. Win 8.1, latest Crimson drivers.
Its R9 290 TRIX and memory is at ~ 2GB now GPU 100%