FortiGate VM16V
Sixteen vCPUs and 36 Gbps of firewall throughput, with 18 million concurrent sessions for a dense private-cloud core.
Full specs and SKUsFortinet · FortiGate Virtual Firewall
FortiGate VM16V vs FortiGate VM32V
Of the 22 specifications Fortinet publishes across these two models, 13 differ. The differences are listed first, then what the step up actually buys and which model fits which site, then every row side by side.
The two models
FortiGate VM32V
Thirty-two vCPUs and 50 Gbps of firewall throughput, 38 million concurrent sessions and 19 Gbps of IPS on an enterprise traffic mix.
Full specs and SKUsKey differences
The rows most buyers check first. All 13 differences are in the full table below.
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Firewall Throughput (UDP Packets, SR-IOV Enabled)
FortiGate VM16V36 Gbps
FortiGate VM32V50 Gbps
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Concurrent Sessions (TCP)
FortiGate VM16V18.0 Million
FortiGate VM32V38.0 Million
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New Sessions / Second (TCP)
FortiGate VM16V175,000
FortiGate VM32V200,000
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IPsec VPN Throughput (AES256+SHA1, 512 Byte)
FortiGate VM16V6.5 Gbps
FortiGate VM32V7 Gbps
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Client-to-Gateway IPsec VPN Tunnels
FortiGate VM16V50,000
FortiGate VM32V64,000
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SSL-VPN Throughput
FortiGate VM16V8.5 Gbps
FortiGate VM32V8.6 Gbps
Which one fits
Stepping up from the FortiGate VM16V to the FortiGate VM32V moves threat-protection throughput from 7.0 Gbps to 13.0 Gbps (1.9×), IPS throughput from 25.0 Gbps / 12.0 Gbps to 29.0 Gbps / 19.0 Gbps (+16%) and NGFW throughput from 9.0 Gbps to 16.5 Gbps (1.8×). Neither choice moves IPsec VPN throughput (6.5 Gbps against 7 Gbps) or application control throughput (17.0 Gbps against 17.5 Gbps), so a site held back by site-to-site tunnel capacity gains nothing from the FG-VM32V.
Choose the FortiGate VM16V if
- Threat-protection throughput is already enough at 7.0 Gbps: the FG-VM32V adds 1.9× you will not use.
- Your limit is site-to-site tunnel capacity, which the step up does not move: 6.5 Gbps against 7 Gbps.
Choose the FortiGate VM32V if
- Threat-protection throughput has to go past 7.0 Gbps: the FG-VM32V publishes 13.0 Gbps.
- IPS throughput has to go past 25.0 Gbps / 12.0 Gbps: the FG-VM32V publishes 29.0 Gbps / 19.0 Gbps.
- NGFW throughput has to go past 9.0 Gbps: the FG-VM32V publishes 16.5 Gbps.
- The concurrent session table has to go past 18.0 Million: the FG-VM32V publishes 38.0 Million.
9 of the 22 published rows are identical — Network Interface Support at 1 / 10, Storage Support at 32 GB / 2 TB, Firewall Policies at 50,000 / 100,000 and Unlimited User License at Yes among them — so the choice does not touch any of those.
Full specification comparison
Every published row for both models, grouped the way Fortinet groups them. A dash means the figure is not published for that model.
| Specification | FortiGate VM16V | FortiGate VM32V |
|---|---|---|
| Technical Specifications | ||
| vCPU Support (Minimum / Maximum) | 1 / 16 | 1 / 32 |
| Network Interface Support (Minimum / Maximum) | 1 / 10 | 1 / 10 |
| Memory Support (Minimum / Maximum) | 1 GB / 24 GB | 1 GB / 48 GB |
| Storage Support (Minimum / Maximum) | 32 GB / 2 TB | 32 GB / 2 TB |
| Wireless Access Points Controlled (Tunnel / Global) | 1,024 / 4,096 | 1,024 / 4,096 |
| Firewall Policies (VDOM / System) | 50,000 / 100,000 | 50,000 / 100,000 |
| Unlimited User License | Yes | Yes |
| System Performance and Capacity | ||
| Virtual Domains (Default / Maximum) | 10 / 500 | 10 / 500 |
| System Performance | ||
| Maximum Number of FortiTokens | 5,000 | 5,000 |
| Maximum Number of Registered Endpoints | 20,000 | 20,000 |
| Firewall Throughput (UDP Packets, SR-IOV Enabled) | 36 Gbps | 50 Gbps |
| Concurrent Sessions (TCP) | 18.0 Million | 38.0 Million |
| New Sessions / Second (TCP) | 175,000 | 200,000 |
| IPsec VPN Throughput (AES256+SHA1, 512 Byte) | 6.5 Gbps | 7 Gbps |
| Gateway-to-Gateway IPsec VPN Tunnels | 40,000 | 40,000 |
| Client-to-Gateway IPsec VPN Tunnels | 50,000 | 64,000 |
| SSL-VPN Throughput | 8.5 Gbps | 8.6 Gbps |
| Concurrent SSL-VPN Users (Recommended Maximum) | 25,000 | 40,000 |
| IPS Throughput (HTTP / Enterprise Mix) | 25.0 Gbps / 12.0 Gbps | 29.0 Gbps / 19.0 Gbps |
| Application Control Throughput | 17.0 Gbps | 17.5 Gbps |
| System Performance - Enterprise Traffic Mix | ||
| NGFW Throughput | 9.0 Gbps | 16.5 Gbps |
| Threat Protection Throughput | 7.0 Gbps | 13.0 Gbps |
Other comparisons in this range
Each step of the FortiGate Virtual Firewall ladder, set against the model above it.
Not sure which one fits?
Tell us the throughput, port count and inspection features you need. We will confirm the right model, licence term and lead time, then quote it.
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