Comparing the Fortigate 40F, 60F, and 80F

A firewall is not just an IT line item, it is the control point for everything that enters and leaves your network. For small and medium-sized businesses (SMBs), Fortinet’s FortiGate line remains one of the most common choices, pairing strong security with performance that punches above its price. This article compares three entry-level to mid-range models that SMBs still buy every day: the FortiGate 40F, 60F, and 80F. It also covers where these fit against Fortinet’s newer G-series, so you can decide which generation to buy in 2026.

Here is the short version. The 40F, 60F, and 80F are proven, widely deployed, and still in active production. The 40F suits very small offices, the 60F is the SMB workhorse, and the 80F covers larger branches. Their G-series successors (the 30G, 50G, 70G, and 90G) run Fortinet’s fifth-generation FortiSP5 chip and deliver roughly two to three times the threat-protection throughput. If you are buying now for a multi-year refresh, the G-series is usually the better long-term value.

What should an SMB consider before choosing a firewall?

Before comparing model numbers, size the firewall to the business. Undersize it and security features throttle your internet; oversize it and you pay for headroom you never use. These are the factors that actually drive the decision:

• Number of users: How many employees, guests, and devices will connect to the network, today and in three years?
• Internet speed: Your firewall should never be the bottleneck. Match its threat-protection throughput to your current and planned bandwidth.
• Security services: Basic firewalling, or the full stack (IPS, antivirus, web filtering, application control, and SSL inspection)? Turning these on is what consumes throughput, which is why threat-protection numbers matter more than raw firewall speed.
• VPN requirements: Do you need remote-access VPN for staff, site-to-site tunnels between offices, or both? Note that Fortinet is retiring SSL VPN tunnel mode in FortiOS, so plan new deployments around IPsec.
• Network interfaces: How many wired ports do you need, and do you require SFP for fiber or PoE for access points and IP phones?
• Future growth and management: Every FortiGate runs FortiOS with built-in SD-WAN, even at the entry level. Choose a model with room to grow into your next few years of users and traffic.

FortiGate 40F, 60F, and 80F compared

All three are desktop, mostly fanless units built on Fortinet’s SOC4 system-on-a-chip, which offloads security and networking functions from the main CPU. They share the same FortiOS features (SD-WAN, high availability, the full FortiGuard security stack); the difference is horsepower and port density.

• FortiGate 40F: The cost-effective entry point, aimed at very small offices, retail sites, and home offices. The 40F-3G4G variant adds a built-in cellular modem for WAN failover or primary connectivity.
• FortiGate 60F: The most popular model in the range and the workhorse for most SMBs, with a big step up in port density over the 40F and enough headroom to run the full security stack.
• FortiGate 80F: Built for larger SMBs and busier branches that need more throughput, double the concurrent sessions, and SFP fiber ports on some variants.

The table below compares the specifications that matter most for sizing. Figures are drawn from Fortinet’s official datasheets and can vary slightly by FortiOS version and sub-model.

Which FortiGate F-series model is right for your business?

• FortiGate 40F: Best for very small offices (roughly under 20 users) with standard security needs and moderate internet speeds. The 40F-3G4G is the pick for sites that need cellular failover.
• FortiGate 60F: The sweet spot for most SMBs (roughly 20 to 75 users). It balances performance, port count, and price, and handles the full security stack on a fast connection without falling over.
• FortiGate 80F: For larger SMBs (roughly 75 to 150+ users), busier branches, or gigabit connections. Its higher session capacity and optional SFP fiber ports give it real headroom.

Should you buy the F-series or the new G-series in 2026?

If this is a fresh, multi-year purchase, price out the G-series first. Fortinet’s G-series (the 30G, 50G, 70G, and 90G) is now its current SMB generation, built on the fifth-generation FortiSP5 security processor that accelerates firewall, VPN, and threat inspection on a single chip. The practical result is roughly two to three times the threat-protection throughput of the F-series, and SSL inspection that no longer collapses your usable bandwidth when you turn it on. The F-series is not going away and remains fully supported, so there is no urgency to rip and replace working hardware, but for new buys the math usually favors G.

The successor mapping is straightforward: the 40F lines up with the 30G and 50G, the 60F is succeeded by the FortiGate 70G, and the 80F steps up to the FortiGate 90G. Here is how the two most common upgrade paths compare on the numbers that matter:

The threat-protection and SSL-inspection lines are the ones to watch. As a Fortinet Advanced Partner deploying these boxes across GTA businesses, the pattern we see most often is a client who bought a 60F, turned on full SSL inspection a year later for compliance, and discovered the box was working harder than expected on a gigabit link. The 70G’s 1.4 Gbps of SSL inspection (more than double the 60F) is exactly the headroom that scenario needs. That is the single most common reason we now recommend pricing the G-series into any new SMB firewall purchase.

What do FortiGate licensing and subscriptions actually cost?

The hardware is only part of the total cost of ownership. FortiGate security features (antivirus, IPS, web filtering, antispam, and cloud sandboxing) are delivered through FortiGuard subscriptions, usually sold as a bundle such as the Unified Threat Protection (UTP) package. FortiCare support covers hardware replacement, firmware updates, and technical assistance. Both are recurring costs, and they apply to F-series and G-series alike, so factor a multi-year subscription into any model comparison rather than pricing the appliance alone.

Making the right choice

Choosing a FortiGate comes down to sizing honestly for the next few years, then deciding between the proven F-series and the higher-headroom G-series:

• Very small or budget-conscious offices: the FortiGate 40F is a solid starting point, or the 30G/50G if you want the newer platform.
• Most SMBs: the FortiGate 60F remains the reliable choice, with the 70G as the future-proof upgrade if the budget allows.
• Larger SMBs and busy branches: the FortiGate 80F delivers the headroom, and the 90G roughly doubles it again if you are buying for growth.

Whichever generation you land on, the sizing and licensing decisions are where most SMBs get it wrong. If you would rather not make that call alone, our team offers managed firewall services and Fortinet solutions that cover sizing, deployment, and ongoing management. You can also compare the range further in our guides to FortiGate model differences and the five factors to weigh when selecting your next FortiGate.

Sources

• FortiGate 70G Series, Fortinet, 2026.
• FortiGate 90G Series Data Sheet, Fortinet, 2026.
• FortiGate Product Matrix (Top Selling Models), Fortinet, 2026.
• FortiGate Next-Generation Firewalls and the FortiSP5 processor, Fortinet, 2026.