This are 5x rx470 4G red devil + 1 r9 380 (GPU1)
All with Stock settings
win 10
h81 pro btc
4G ram

ZEC - Total Speed: 1027.998 H/s, Total Shares: 207, Rejected: 0, Time: 00:18
ZEC: GPU0 178.125 H/s, GPU1 138.477 H/s, GPU2 176.131 H/s, GPU3 180.199 H/s, GPU4 179.273 H/s, GPU5 175.810 H/s