SonicWall Gen 8 vs Gen 7: 7 Proven Differences and the Best Pick for Your Office

October 11, 2026

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Last updated: October 11, 2026

In the SonicWall Gen 8 vs Gen 7 decision, Gen 8 is the better buy for most new purchases. Each Gen 8 TZ inspects traffic about as fast as the next Gen 7 model up, multi-gigabit ports start one tier lower, and SonicWall’s last order day for the Gen 7 TZ270 and TZ470 has already passed.

SonicWall Gen 8 vs Gen 7: key takeaways

The Gen 8 TZ280 is rated at 1 Gbps threat prevention throughput; the Gen 7 TZ270 it replaces is rated at 750 Mbps.
Gen 8 puts multi-gigabit SFP+ ports on the TZ380, where Gen 7 starts them at the TZ470.
A second power supply is supported from the TZ380 up in Gen 8, but only on the TZ570 and TZ670 in Gen 7.
SonicWall’s Last Time Buy window for the TZ270 and TZ470 closed on June 30, 2026.
A licensed Gen 7 firewall does not need replacing today; plan the move around your renewal date.

SonicWall Gen 8 vs Gen 7 at a glance

Gen 8 is SonicWall’s current firewall generation, launched in August 2025, and Gen 7 is the generation it is replacing. Both cover the same desktop TZ range for small and mid-sized offices, so the real question is which box in the same size class belongs on your quote.

At Jazz Cyber Shield, a US-based reseller of networking and cybersecurity hardware, SonicWall Gen 8 vs Gen 7 is the comparison buyers ask us about most. The model numbers differ by one digit and the datasheets look alike at first read.

The table pairs the models by number. SonicWall names the TZ280 as the replacement for the TZ270 and the TZ480 for the TZ470 in its Last Time Buy announcement. The other pairs follow the same numbering pattern.

SonicWall Gen 8 vs Gen 7 TZ models side by side
Topic	Gen 7 TZ	Gen 8 TZ
Models	TZ270, TZ370, TZ470, TZ570, TZ670	TZ280, TZ380, TZ480, TZ580, TZ680
Operating system	SonicOS 7	SonicOS 8
Threat prevention throughput	750 Mbps to 2.5 Gbps	1 Gbps to 2.5 Gbps
Multi-gigabit ports start at	TZ470	TZ380
Second power supply option	TZ570 and TZ670 only	TZ380 and above
Expandable storage	Up to 256 GB	Up to 512 GB
Order status	TZ270 and TZ470 past Last Day Order	Current generation

SonicWall Gen 8 vs Gen 7: the 7 differences that matter

Seven differences decide a SonicWall Gen 8 vs Gen 7 purchase: inspection speed, connection capacity, port speeds, power and storage, software, licensing and lifecycle. Every figure below comes from SonicWall’s own pages, linked so you can check them.

1. Is Gen 8 faster than Gen 7?

On speed, SonicWall Gen 8 vs Gen 7 is a win for Gen 8 at the low and middle tiers and a tie at the top. The largest gain is on the entry model.

Size on threat prevention throughput, which measures the firewall with its security services on. SonicWall publishes both generations on its TZ Series product page.

SonicWall Gen 8 vs Gen 7 throughput by model (source: sonicwall.com)
Model	Generation	Firewall inspection	Threat prevention	VPN	Max connections (SPI)
TZ270	Gen 7	2 Gbps	750 Mbps	750 Mbps	750K
TZ280	Gen 8	2.5 Gbps	1 Gbps	1.2 Gbps	1M
TZ370	Gen 7	3 Gbps	1 Gbps	1.38 Gbps	900K
TZ380	Gen 8	3.5 Gbps	1.5 Gbps	1.6 Gbps	1.1M
TZ470	Gen 7	3.5 Gbps	1.5 Gbps	1.38 Gbps	1M
TZ480	Gen 8	4 Gbps	2 Gbps	2 Gbps	1.2M
TZ570	Gen 7	4 Gbps	2 Gbps	1.8 Gbps	1.25M
TZ580	Gen 8	4.5 Gbps	2.2 Gbps	2.2 Gbps	1.4M
TZ670	Gen 7	5 Gbps	2.5 Gbps	2.1 Gbps	1.5M
TZ680	Gen 8	5 Gbps	2.5 Gbps	2.5 Gbps	1.6M

Read the table diagonally and the SonicWall Gen 8 vs Gen 7 pattern appears. The TZ280 matches the Gen 7 TZ370 on threat prevention at 1 Gbps. The TZ380 matches the TZ470 at 1.5 Gbps, and the TZ480 matches the TZ570 at 2 Gbps. In practice, the speed gap is one model tier, so an office that needed a TZ370 can look at a TZ280.

The step shrinks higher up: the TZ580 is rated only 200 Mbps above the TZ570, and the TZ680 equals the TZ670.

VPN is where every Gen 8 model wins. The TZ280 is rated at 1.2 Gbps against 750 Mbps for the TZ270, and the TZ480 at 2 Gbps against 1.38 Gbps for the TZ470. If site-to-site tunnels join your offices, compare that line first.

2. How many connections can each generation handle?

On connection capacity, SonicWall Gen 8 vs Gen 7 is a win for the newer range on every model. The TZ280 supports 1 million stateful connections against 750,000 on the TZ270.

Every browser tab, cloud app, phone and camera holds sessions open, and a full connection table drops new ones.

3. Which generation has faster ports?

On ports, the SonicWall Gen 8 vs Gen 7 difference is where multi-gigabit begins: one tier lower. According to the SonicWall Gen 8 TZ and NSa FAQ, every Gen 8 TZ has two SFP/SFP+ ports, and their speed depends on the model:

TZ280: up to 1 Gbps.
TZ380 and TZ480: multi-gigabit at 5G, 2.5G or 1G.
TZ580 and TZ680: multi-gigabit at 10G, 5G, 2.5G or 1G.

In Gen 7, SonicWall’s FAQ lists multi-gigabit interfaces on the TZ470, TZ570 and TZ670, and gigabit interfaces on the TZ270 and TZ370. An office with a 2.5G switch uplink had to start at the TZ470; in Gen 8 the TZ380 does that job.

Gen 8 also adds a micro USB console port, DIN rail mounting and USB Type-C cellular dongle support.

4. Which models support a second power supply and more storage?

Power is the most overlooked line in a SonicWall Gen 8 vs Gen 7 comparison. In Gen 8, the TZ380 and above accept a second power supply, sold separately, while the TZ280 has a single supply.

In Gen 7 only the TZ570 and TZ670 support dual power supplies. Where the firewall is the only path to the internet, that alone can justify a TZ380.

Storage follows the same direction: SonicWall describes built-in and expandable storage of up to 512 GB on Gen 8 TZ models, against expandable storage of up to 256 GB on Gen 7.

5. What changes in SonicOS 8?

The software split in SonicWall Gen 8 vs Gen 7 is simple: Gen 8 runs SonicOS 8 and Gen 7 runs SonicOS 7. The SonicOS 8.2.1 release notes, dated June 2026, list only Gen 8 TZ, NSa and NSv models as supported platforms.

Gen 8 hardware and SonicOS 8 add:

SAML 2.0 authentication on Generation 8 firewalls.
IP-based Indicator of Compromise (IoC) detection.
Wi-Fi 6 on the wireless “W” models, such as the TZ380W.

Gen 8 is managed through Network Security Manager (NSM) 3.1 and later or SonicWall Unified Management, and SonicWall’s launch announcement says zero trust network access is built into every Gen 8 firewall. Gen 7 uses NSM 2.1 and later.

From SonicOS 8.0.0, the SonicPoint-N, NDR, Ni/Ne and ACe/ACi/N2 access points are no longer supported, and WEP and TKIP are deprecated. If old SonicPoints still hang off your firewall, budget for business Wi-Fi access points in the same project.

6. How does SonicWall Gen 8 vs Gen 7 licensing differ?

Gen 8 simplifies the bundles and adds a managed option. SonicWall’s Gen 8 FAQ lists three ways to buy: hardware only, the Advanced Protection Security Suite (APSS) and the Managed Protection Security Suite (MPSS).

APSS covers the security services, device management and 7 days of reporting, extendable to 30, 90 or 365 days.
MPSS adds management by SonicWall’s SonicSentry team: 24/7 monitoring, firmware updates, configuration changes and monthly health checks.
Hardware only is available on the TZ280 through TZ680. The smaller TZ80 needs an active subscription and a permanent internet connection.

Gen 7 launched with Threat, Essential and Advanced bundles. SonicWall began retiring the Threat bundle for the TZ270, TZ370 and TZ470 on May 1, 2025, and names the Essential Protection Security Suite (EPSS) as its replacement.

On a SonicWall Gen 8 vs Gen 7 quote, two details are worth checking. SonicWall’s security services page lists EPSS for Gen 7 TZ and Gen 8 firewalls, while the Gen 8 FAQ names only APSS and MPSS. The same page lists an embedded cyber warranty of up to $100,000 with EPSS and APSS and up to $200,000 with MPSS.

SonicWall also announced monthly billing for APSS and MPSS with no long-term commitments. Keep quotes current: SonicWall announced pricing adjustments on selected Gen 6, Gen 7 and Gen 8 SKUs effective August 1, 2026.

7. Is Gen 7 end of sale?

Partly, and lifecycle is where SonicWall Gen 8 vs Gen 7 stops being a close call. SonicWall published a Last Time Buy notice for the TZ270 and TZ470 on June 9, 2026. The window closed on June 30, 2026, and both models entered the Last Day Order phase that day.

End of sale is not end of support. SonicWall’s product lifecycle article describes two years of Active Retirement Mode after the last order day, with bug fixes on the latest firmware. Three years of Limited Retirement Mode follow, covering critical bugs and vulnerabilities, and then End of Support.

Remaining channel stock can still be sold, and those units stay inside that support lifecycle. We found no equivalent notice for the TZ370, TZ570 or TZ670, but confirm the status of any Gen 7 model before you commit.

Which SonicWall generation should your office buy?

Buy Gen 8 for a new installation, and consider Gen 7 only when the price gap is real and the site has a short service life. Use this SonicWall Gen 8 vs Gen 7 shortlist as a starting point.

SonicWall Gen 8 vs Gen 7: which model fits which office
Your situation	Gen 8 choice	Closest Gen 7 model	Why
Small office, internet line up to about 500 Mbps	TZ280 (1 Gbps threat prevention)	TZ270	More headroom; TZ270 is past Last Day Order
Office on a 1 Gbps line with security services on	TZ380 (1.5 Gbps)	TZ470	Same rating, plus multi-gigabit ports
Office with a 2 Gbps line or a 2.5G switch uplink	TZ480 (2 Gbps) or TZ580 (2.2 Gbps)	TZ570	Pick the TZ580 if the line runs near 2 Gbps
Head office with a 10G uplink and many VPN tunnels	TZ680 (2.5 Gbps)	TZ670	Equal inspection, faster VPN

Size against the line you expect in three years. Inspecting encrypted traffic lowers real throughput further, so compare the DPI SSL line on the datasheet if you plan to decrypt. Our guide to firewall throughput vs bandwidth walks through that math.

Gen 7 still makes sense in two cases:

You already run Gen 7 and want an identical spare or a matching high-availability partner.
The site has a known end date, such as a lease that ends before the hardware reaches End of Support.

If you are choosing between two Gen 7 units, our SonicWall TZ270 vs TZ370 comparison covers that pair. Otherwise, start with the Gen 8 models in the SonicWall firewall range.

Should you upgrade from Gen 7 to Gen 8 now?

Not automatically. A Gen 7 firewall with an active subscription and current firmware is still supported, so the SonicWall Gen 8 vs Gen 7 upgrade question is about timing. Three triggers make the move worthwhile.

Your subscription renews within a year. A multi-year renewal on hardware past its last order day ties money to a shrinking support window. Price it against a Gen 8 bundle first.
Your internet line has outgrown the box. If the line is faster than the threat prevention rating, the firewall is slowing every user.
You need a feature Gen 7 lacks. Power redundancy below the TZ570 and multi-gigabit ports below the TZ470 are the usual reasons.

SonicWall states that the TZ270 and TZ470 are eligible for upgrade to Gen 8 through its Secure Upgrade Plus program. Ask for that pricing next to a standard quote.

If none of the three applies, the SonicWall Gen 8 vs Gen 7 answer for you is to wait: keep the Gen 7 unit licensed and patched, and budget the replacement for next year.

How do you migrate settings from Gen 7 to Gen 8?

Migration is the practical side of SonicWall Gen 8 vs Gen 7. SonicOS 8 includes in-product migration from Gen 6, Gen 6.5 and Gen 7, and SonicWall’s release notes state that settings from Gen 7 firewalls running SonicOS 7.3.x can be imported into Gen 8 firewalls running 8.2.1.

A clean cutover follows six steps:

Update the old firewall first. Bring the Gen 7 unit to SonicOS 7.3.x and export its settings.
Check the path. Like-for-like moves such as TZ270 to TZ280 and TZ370W to TZ380W are named in the release notes.
Deal with VLANs and tunnel interfaces. SonicWall’s FAQ says these must be removed before an in-product import unless you use the SonicWall Migration Tool.
Register and license the new unit. A MySonicWall account is required.
Review what did not carry over. Check interface mapping, wireless settings that used WEP or TKIP, and legacy SonicPoint access points.
Cut over in a maintenance window. Keep the old firewall on hand for a quick rollback, and test VPN tunnels and remote access.

What mistakes do buyers make with this choice?

Most problems come from comparing the wrong numbers or ignoring dates. These five appear most often on SonicWall Gen 8 vs Gen 7 quotes.

Sizing on firewall inspection throughput. The 2.5 Gbps headline on a TZ280 becomes 1 Gbps with threat prevention on.
Assuming the next number is the same class. A TZ380 is closer to a Gen 7 TZ470 than to a TZ370.
Comparing appliance prices only. Compare the total for hardware plus the same bundle and term.
Buying a retiring model with a long subscription. Match the license term to the support window of the hardware.
Forgetting the accessories. The second power supply, storage module and SFP+ transceivers are separate line items.

If your shortlist goes beyond SonicWall Gen 8 vs Gen 7 to other vendors, compare them on the same threat prevention basis across our full business firewall catalog.

SonicWall Gen 8 vs Gen 7 FAQ

These are the SonicWall Gen 8 vs Gen 7 questions buyers ask us most often.

Is SonicWall Gen 7 end of life?

Not yet. SonicWall closed the Last Time Buy window for the TZ270 and TZ470 on June 30, 2026, which ends new orders but not support. SonicWall’s lifecycle policy describes two years of Active Retirement Mode and three years of Limited Retirement Mode before End of Support.

Is SonicWall Gen 8 faster than Gen 7?

At most tiers, yes. The TZ280 is rated at 1 Gbps threat prevention throughput against 750 Mbps for the TZ270, and the TZ380 is rated at 1.5 Gbps against 1 Gbps for the TZ370. At the top, the TZ680 and TZ670 are both rated at 2.5 Gbps.

Which Gen 8 model replaces the SonicWall TZ270 and TZ470?

SonicWall names the TZ280 as the replacement for the TZ270 and the TZ480 as the replacement for the TZ470. Both older models are eligible for upgrade through the SonicWall Secure Upgrade Plus program.

Can SonicWall Gen 7 settings be imported into a Gen 8 firewall?

Yes. SonicOS 8 includes in-product migration, and SonicWall states that settings from Gen 7 firewalls running SonicOS 7.3.x can be imported into Gen 8 firewalls running 8.2.1. VLANs and tunnel interfaces must be removed first unless you use the SonicWall Migration Tool.

Does a SonicWall Gen 8 firewall work without a subscription?

The TZ280, TZ380, TZ480, TZ580 and TZ680 are sold as hardware-only units and can run without a subscription, although SonicWall strongly recommends adding security services. The TZ80 is the exception: it requires an active subscription and a permanent internet connection.

Does SonicWall Gen 8 include a cyber warranty?

It depends on the bundle. SonicWall lists an embedded Cysurance-backed cyber warranty of up to $100,000 with the Essential and Advanced bundles and up to $200,000 with the Managed Protection Security Suite. A hardware-only purchase does not include a security bundle.

Where can you get a quote?

For most offices the SonicWall Gen 8 vs Gen 7 choice ends with Gen 8: pick the model whose threat prevention rating clears your internet line, then choose APSS or MPSS. Gen 7 remains reasonable only for matching existing units or short-lived sites.

Browse current SonicWall firewalls at Jazz Cyber Shield. For bulk orders, multi-site rollouts or a second opinion on your SonicWall Gen 8 vs Gen 7 shortlist, send us your model list and internet speeds and request a quote.

Sources

Every figure in this SonicWall Gen 8 vs Gen 7 comparison was checked against SonicWall’s own pages on October 11, 2026.