Maximum values
Maximum values for hyperscale firewall FortiGate models for FortiOS 6.4.6 are available from the FortiOS Maximum Values Table (https://docs.fortinet.com/max-value-table).
Network Security 
Network Security
NOC & SOC Management
Enterprise Networking
Business Communications
Zero Trust Access 
Cloud Security 
Hybrid Cloud Security
Cloud Native Protection
Web Application / API Protection
SAAS Security
Security Operations 
SOC Platform
Advanced Threat Protection
Endpoint Security