🛡️ Cisco Firepower 1140 vs 1150

The headline difference between the FPR1140 and FPR1150 is twofold: the 1150 delivers roughly 60–75% more inspected throughput, and it adds two 10G SFP+ interfaces that the 1140 simply does not have. For any deployment where the WAN, DMZ or inter-VLAN trunk could conceivably push beyond 1 Gbps — increasingly common even at mid-market sites with gigabit fibre — the 1150 is the only one of the pair that can carry that traffic at line rate on a single interface.

The 1140 is still a credible appliance for UK branch and smaller HQ deployments: 3.3 Gbps of FTD throughput with full NGIPS and 1.2 Gbps of TLS decryption comfortably covers a 100–250-user site running Microsoft 365, SaaS and typical north-south inspection. Its 400 VPN peers and 400K concurrent sessions are the practical ceiling, however, and active/standby is the only HA option — fine for branch resilience, less ideal where you want both nodes carrying load.

The 1150 lifts every meaningful number: 5.3 Gbps FTD, 6.1 Gbps NGIPS, 600K sessions, 800 VPN peers, 2.4 Gbps IPSec, and active/active HA in addition to active/standby. The 10G uplinks and doubled VPN peer count make it the better fit for a regional HQ aggregating branch IPSec tunnels or for a site where SSL inspection on Office 365 and web traffic is mandatory under an internal data-protection or NCSC-aligned policy.

Recommendation: pick the 1140 if you are sizing for a sub-300-user UK site with a 1 Gbps WAN, modest VPN concentration and no realistic 10G requirement on the horizon. Step up to the 1150 if you need 10G interfaces, expect to terminate more than ~400 VPN users, want active/active HA, or want headroom for TLS inspection growth over a 5-year refresh cycle — the relatively small price delta for the capability uplift is usually justified.

Want to compare different products or add more to this comparison?

Made your choice? Spread the cost.

Whichever you choose, you don't have to pay for it all upfront — finance your new hardware from £258/mo ex VAT on hire purchase or lease. Compare monthly payments and terms in seconds.

Indicative estimate · subject to change · no credit check at this stage · hire purchase, lease & subscription for UK businesses

Indicative illustration only. Servnet Limited is not authorised or regulated by the FCA and does not provide financial advice or arrange finance. All finance opportunities are referred to Number Eight Business Finance. Finance policy