pfsense throughput on E3-1240V6

[blackmetal]

Hello,
i want install pfsense on following dedicated server for using its IPS(Snort)
E3-1240v6
32GB DDR4 2400Mhz
2x ssd 240gb intel dcs 3510
HP P222 Smart Array 6G SAS/ 3G SATA
1 x Intel TenGigabit X520-DA2 Server (Intel 82599 ES chipset) Adapter, 2 x SFP+ ports

then i want put this server in front (before) my mikrotik and i want using its 10GB uplinks so how much active connections or throughput can i have on this server?
i see its close to XG-1537,

so can any one guide me about throughput of this server when i using only the IPS feature?

and how many firewall rules can i have on this server without reducing performance?

THanks