Getting these on a Win7 x64 Intel Core Duo e4300 2GB RAM and 2 RX480:
Total 188.4 sol/s [dev0 97.2, dev1 93.0] 477 shares
Total 189.1 sol/s [dev0 95.7, dev1 92.3] 477 shares
Total 189.3 sol/s [dev0 94.4, dev1 91.9] 477 shares
Total 190.4 sol/s [dev0 93.2, dev1 93.5] 477 shares
Total 190.7 sol/s [dev0 95.0, dev1 94.0] 477 shares
Total 190.4 sol/s [dev0 98.9, dev1 94.6] 477 shares
Total 190.3 sol/s [dev0 97.9, dev1 89.8] 477 shares
Total 190.0 sol/s [dev0 99.3, dev1 89.4] 477 shares
Total 190.0 sol/s [dev0 99.9, dev1 90.1] 477 shares
Total 190.7 sol/s [dev0 98.8, dev1 91.7] 477 shares
Total 189.5 sol/s [dev0 95.2, dev1 92.1] 477 shares
Total 189.0 sol/s [dev0 96.0, dev1 90.9] 478 shares
Total 189.9 sol/s [dev0 97.3, dev1 93.1] 479 shares
Total 189.6 sol/s [dev0 97.2, dev1 94.1] 479 shares
Total 189.2 sol/s [dev0 95.8, dev1 93.8] 479 shares
Total 190.4 sol/s [dev0 95.2, dev1 93.0] 479 shares
Total 191.3 sol/s [dev0 95.9, dev1 99.5] 479 shares
Total 190.2 sol/s [dev0 93.9, dev1 100.8] 480 shares
Total 189.2 sol/s [dev0 88.6, dev1 101.6] 480 shares
Total 189.4 sol/s [dev0 88.8, dev1 100.5] 480 shares
Total 191.0 sol/s [dev0 92.9, dev1 102.7] 480 shares
Total 190.3 sol/s [dev0 93.3, dev1 102.9] 480 shares
Total 189.5 sol/s [dev0 92.1, dev1 99.6] 480 shares
Better than on my Nvidia GTX1080 and GTX1070 on Windows 10 x64 1607, 32GB Ram and Xeon 1650v3 @4.2GHz which are doing just:
Total 387.7 sol/s [dev0 72.2, dev1 80.7, dev2 73.5, dev3 82.7, dev4 77.7] 71 shares
Total 388.1 sol/s [dev0 71.3, dev1 81.5, dev2 72.2, dev3 81.2, dev4 77.6] 71 shares
Total 390.0 sol/s [dev0 71.8, dev1 83.6, dev2 70.0, dev3 81.7, dev4 77.1] 71 shares
Total 388.8 sol/s [dev0 71.2, dev1 83.4, dev2 71.4, dev3 79.8, dev4 78.0] 71 shares
Total 388.3 sol/s [dev0 69.0, dev1 84.4, dev2 70.4, dev3 79.4, dev4 79.6] 71 shares
Total 390.0 sol/s [dev0 74.5, dev1 82.0, dev2 70.8, dev3 79.4, dev4 76.7] 71 shares
Total 389.5 sol/s [dev0 73.5, dev1 80.9, dev2 72.5, dev3 76.2, dev4 77.9] 71 shares
Total 388.1 sol/s [dev0 73.1, dev1 81.0, dev2 71.0, dev3 81.8, dev4 77.0] 71 shares
Total 385.6 sol/s [dev0 74.6, dev1 81.2, dev2 71.2, dev3 81.4, dev4 73.0] 71 shares
Total 385.2 sol/s [dev0 74.8, dev1 86.2, dev2 68.9, dev3 82.5, dev4 72.3] 71 shares
Total 386.0 sol/s [dev0 76.0, dev1 87.2, dev2 68.6, dev3 82.8, dev4 71.1] 71 shares
Total 387.9 sol/s [dev0 76.7, dev1 87.3, dev2 69.3, dev3 84.4, dev4 72.8] 71 shares
Total 386.2 sol/s [dev0 76.0, dev1 85.7, dev2 71.0, dev3 83.8, dev4 71.3] 71 shares
Total 386.6 sol/s [dev0 76.4, dev1 84.8, dev2 69.5, dev3 85.6, dev4 73.2] 71 shares
Total 386.7 sol/s [dev0 77.4, dev1 86.4, dev2 70.6, dev3 84.9, dev4 73.7] 71 shares
Total 387.0 sol/s [dev0 74.0, dev1 87.8, dev2 68.8, dev3 84.0, dev4 74.3] 71 shares
Total 386.5 sol/s [dev0 70.2, dev1 90.0, dev2 68.1, dev3 88.4, dev4 72.1] 71 shares
Total 387.3 sol/s [dev0 69.7, dev1 90.7, dev2 70.1, dev3 88.0, dev4 74.4] 71 shares
Total 388.5 sol/s [dev0 71.1, dev1 91.0, dev2 70.7, dev3 87.0, dev4 77.8] 71 shares
Total 389.1 sol/s [dev0 71.3, dev1 92.1, dev2 71.9, dev3 87.2, dev4 77.1] 71 shares
Total 388.9 sol/s [dev0 71.8, dev1 89.5, dev2 72.2, dev3 85.3, dev4 75.5] 71 shares
Total 386.8 sol/s [dev0 70.6, dev1 88.0, dev2 71.2, dev3 83.0, dev4 73.3] 71 shares
Total 388.0 sol/s [dev0 72.2, dev1 87.8, dev2 71.8, dev3 84.2, dev4 76.1] 71 shares
Total 387.0 sol/s [dev0 72.8, dev1 85.2, dev2 71.3, dev3 84.1, dev4 74.3] 71 shares
Total 387.4 sol/s [dev0 72.8, dev1 83.2, dev2 71.9, dev3 84.4, dev4 74.2] 71 shares
Total 387.1 sol/s [dev0 74.5, dev1 82.2, dev2 72.7, dev3 85.5, dev4 74.2] 73 shares
Total 386.5 sol/s [dev0 77.4, dev1 81.0, dev2 71.7, dev3 84.4, dev4 74.9] 74 shares