Fortinet Firewall Models vs 120G: Compare FortiGate Architecture

By Published On: June 27, 2025

This article provides a comprehensive comparison between Fortinet FortiGate firewall models, specifically focusing on the FortiGate 100F and the 120G. We will delve into their architectural differences, performance capabilities, and security features to help you make an informed decision for your network infrastructure.

Introduction to Fortinet Firewalls

Overview of FortiGate Series

The FortiGate series represents Fortinet’s robust line of enterprise-grade firewalls, renowned for their advanced security features and high-performance capabilities. These next-generation firewalls are designed to provide comprehensive threat protection across various network environments, from small branch offices to large data centers.

Importance of Firewall Solutions

In today’s evolving digital landscape, robust firewall solutions are paramount for protecting businesses of all sizes from persistent and emerging digital threats. TeamWin proudly offers enterprise AI-driven next-generation firewalls as a cornerstone of their comprehensive cybersecurity and secure networking services. Their mission is to empower businesses with secure, scalable, and affordable IT solutions, ensuring their data and operations remain protected.

Key Features of Fortinet Firewalls

TeamWin’s enterprise AI-driven next-generation firewalls are integral to a broader suite of advanced cybersecurity services. These include real-time Dark Web monitoring, comprehensive threat detection, and expertly managed security services, ensuring your organization maintains robust security compliance. TeamWin further bolsters these offerings with essential access security and physical security solutions, all backed by unwavering 24/7 support and continuous monitoring.

Comparative Analysis: FortiGate 100F vs 120G

Performance and Throughput Comparison

When comparing the FortiGate 100F versus the 120G, a key differentiator lies in their performance and throughput capabilities. The 120G, being a newer model, boasts:

Model Performance/Throughput
FortiGate 120G Significant enhancements in hardware architecture, translating to higher data processing speeds and improved overall network performance.
FortiGate 100F Lower data processing speeds and overall network performance compared to the 120G.

Security Features and Protocol Support

Both the FortiGate 100F and 120G offer a comprehensive suite of security features and extensive protocol support. However, the 120G often incorporates the latest advancements in threat detection and prevention, including enhanced SSL VPN capabilities and more robust ATP (Advanced Threat Protection) features, showcasing its cutting-edge security architecture.

Pricing Analysis for 100F and 120G

When comparing the FortiGate 100F and 120G, their pricing is a critical aspect. The 100F offers a more budget-friendly initial cost. However, the 120G often justifies its higher price point through several key advantages, representing a more future-proof investment:

Feature FortiGate 120G Advantage
Performance Superior throughput
Longevity Extended hardware life
Security Access to the latest security features

Architectural Differences

Feature FortiGate 100F (FG‑100F) FortiGate 100G (FG‑101F)
Onboard Storage None 480 GB SSD
Ports 12 GE RJ45 ports + 1 MGMT/DMZ + 2 WAN + 2 HA + 4 shared (16 LAN) + 4 GE SFP + 2 × 10 GE SFP+ Same port configuration
Firewall Throughput 20 Gbps (1518 byte UDP) Same
IPS Throughput 2.6 Gbps Same
NGFW Throughput 1.6 Gbps Same
Threat Protection Throughput 1 Gbps Same
Concurrent Sessions 1.5 million Same
SSL‑VPN Throughput / Users 1 Gbps / 500 users Same
Power (Avg/Max) 26.5 W / 29.5 W 35.3 W / 39.1 W
Heat Dissipation 100.6 BTU/h 121.13 BTU/h (higher consumption)
Weight 7.25 lb (3.29 kg) 7.56 lb (3.43 kg)
Airflow Noise 40.4 dBA Same

🔍 Key Differences Summarized:

  • Local SSD Storage: FG‑101F includes a 480 GB SSD for logging, analytics, and FortiAnalyzer local support; FG‑100F does not .
  • Power & Thermal: FG‑100F is more efficient, consuming ~26.5 W vs FG‑101F’s ~35 W, leading to lower heat output .
  • Weight: FG‑101F is slightly heavier due to the SSD and associated components.

✅ Which Should You Choose?

  • Choose FG‑101F if your deployment needs include:

    • Local storage for logs, analytics, caching.
    • Simplified architecture without external log servers or FortiAnalyzer.

      Choose FG‑100F if you want:

      • Lower power consumption, heat, and weight.
      • No need for onboard storage and you have separate logging infrastructure.

Hardware Specifications

The architectural differences between the FortiGate 100F and 120G are primarily rooted in their hardware specifications. The 120G features a more advanced processor and potentially optimized ASIC (Application-Specific Integrated Circuit) acceleration, contributing to its superior throughput and overall performance compared to the 100F. This enhanced hardware architecture allows the 120G to handle a higher volume of data and more complex security inspections with greater efficiency.

Software Capabilities

Beyond hardware, the software capabilities also distinguish the FortiGate 100F and 120G. The 120G, being a newer model, often ships with a more recent FortiOS version, offering enhanced software features, an improved user interface, and support for the latest security protocols and threat intelligence updates. This can translate to more refined security policies and streamlined configuration for administrators.

Scalability and Future-Proofing

When considering scalability and future-proofing, the FortiGate 120G generally offers a more robust solution. TeamWin understands that secure, scalable, and affordable end-to-end IT services are crucial for business growth. For small and medium-sized businesses, the 120G’s increased throughput and advanced capabilities make it a scalable choice to support future expansion. For large enterprises, TeamWin consistently delivers advanced security and scalable infrastructure, making the 120G an ideal fit for demanding environments that require enduring performance.

Support and Maintenance

Available Support Options for Fortinet Products

Fortinet offers a comprehensive range of support options for its products, including the FortiGate 100F and 120G, ensuring that users have access to assistance when needed. These options typically include FortiCare support contracts, which provide access to technical support, firmware updates, and hardware replacement services. TeamWin complements this by offering 24/7 support and monitoring, ensuring immediate assistance and reliable solutions are always available, maximizing the operational uptime of your FortiGate firewall.

Community and Professional Support Insights

Beyond official support, both FortiGate 100F and 120G benefit from a vibrant community and extensive professional support network. Online forums, user groups, and third-party consultants offer valuable insights, troubleshooting tips, and best practices. TeamWin’s tech teams are highly experienced and certified professionals, continuously trained on the latest IT and ITES technologies, providing an invaluable resource for complex FortiGate configurations and proactive maintenance strategies.

Comparative Analysis of Update Frequencies

A comparative analysis of update frequencies reveals that both FortiGate 100F and 120G receive regular firmware updates and threat intelligence feeds from Fortinet. The 120G, as a more recent model, may benefit from more frequent feature enhancements and optimizations, ensuring it remains at the forefront of cybersecurity defense. These consistent updates are crucial for maintaining optimal security and performance against evolving cyber threats, protecting your network infrastructure effectively.

Conclusion

Summary of Throughput Enhancements

The FortiGate 120G, with its improved architecture driven by a more powerful processor and advanced ASIC acceleration, demonstrates significant throughput enhancements. These advancements enable it to handle higher data volumes and more complex security inspections with greater efficiency, ensuring a smoother user experience and superior protection for modern network demands. The specific enhancements over the 100F are detailed below:

Performance Area Improvement on 120G vs 100F
Firewall Throughput Significant enhancement
Threat Protection Significant enhancement
SSL VPN Performance Significant enhancement

New Features and Their Implications

The FortiGate 120G introduces several new features that have profound implications for network security and management. These often include enhanced FortiOS versions, offering a more intuitive user interface, refined security policies, and support for the latest threat intelligence and protocols. Such innovations empower organizations to implement more granular control over their network traffic and proactively defend against emerging cyber threats, optimizing their overall security posture.

Final Recommendations for Users

For users prioritizing cutting-edge performance, enhanced security features, and future-proofing capabilities, the FortiGate 120G is the recommended choice. While the 100F remains a capable firewall, the 120G’s superior throughput and advanced architecture make it a more suitable investment for growing businesses and those with increasing network demands. TeamWin ensures businesses gain a competitive advantage with high-performance security solutions.

Which is better: comparing FG 120G or 200F?

When you compare the FortiGate 120G and the FortiGate 200F, the 200F generally offers significantly higher performance and throughput capabilities. Designed for larger enterprises and more demanding network environments, the 200F boasts greater firewall, threat protection, and SSL VPN throughput, along with a larger number of ports and higher session capacity. This makes the 200F the superior choice for organizations with extensive network traffic and complex security requirements, ensuring robust protection and efficient data flow.

Is the FortiGate 80F suitable for organizations with multiple branch locations?

The FortiGate 80F can be suitable for organizations with multiple small branch locations, offering a cost-effective and capable solution for basic security needs. Its compact size and integrated features make it ideal for remote offices requiring reliable firewall, VPN, and threat protection. However, for branches with higher user counts or greater throughput demands, upgrading to a model like the 100F or 120G might be necessary to ensure optimal performance and comprehensive security coverage.

What makes the FortiGate 100F an enterprise-grade firewall?

The FortiGate 100F is considered an enterprise-grade firewall due to its robust architecture, comprehensive security features, and high throughput capabilities. It offers advanced threat protection, SSL VPN support, and deep packet inspection, all powered by Fortinet’s custom-built Security Processing Units (SPUs) for accelerated performance. TeamWin offers enterprise AI-driven next-generation firewalls as part of a suite of services provided for large-scale operations. TeamWin’s expert services, including AI-driven firewalls, are designed to boost efficiency, ensure compliance, and protect critical data for enterprises.

FORTINET FORTIGATE Small Business Firewall Series Comparison

For small and medium-sized businesses (SMBs), Fortinet offers a range of FortiGate firewall series tailored to provide secure, scalable, and affordable end-to-end IT services. These include models like the 40F, 60F, and 80F, which offer varying levels of throughput and features to match the specific needs of smaller networks. TeamWin provides managed IT services designed for SMEs and small businesses, ensuring they receive robust cybersecurity and efficient cloud setup, allowing them to focus on growth without compromising on security.

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