A mining rig with 8 of these cards, riserless board would be great with 0.72 Ghs speed of mining in a single board. It is a lot better than E3 Antminer and it can also mine other coins, it should also shine on cryptonight algorithm. It is expensive to build such rig right now wih profitability down but for any believer in crypto it is wise to build such rig.