i also notice the AES-ni makes a huge different when mining:
- 2 cpu each 8 cores: Xeon X5550 @ 2.67GHZ AES-NI not supported,gives me hardly 1.39 HPM with Minerd
- 2 cpu each 8 cores: Xeon E5620 @ 2.04GHZ AES-NI supported gives me 10 HPM