Look at the picture:

Forgive my ignorance, but the algo nist5 is not resistant to ASIC?
I think 5GH/s is enough for GPU's ... even if they were R9 280x with 7 mh/s would need more than 700 GPU's to total 5GH/s
I'm probably wrong but it seems to be a miner ASIC u.u
Yeah there was one for 16GHash on my pool, that's a lot of rentals and not good at the current sell price.