Hi,
What can be easily found is those information:
Firewall Throughput (bps) 3G
Max Firewall Throughput (bps) 4G
Packets per Second (PPS) 1.5M
Connections per Second (CPS) 65K
Concurrent Connections 1M
Cisco dont mention Routing Table. Routing table is usually limited by the memory capacity.
In your case, a good practice is summary routing as much as possible.