Each passing year feels like another step towards 2.5 GbE or even 10 GbE networking in the home, and it's easy to feel out of the loop if you're still at measly old gigabit. The truth is: most home networks aren't being held back by gigabit connections at all. Even if you're tech-inclined and run a home lab with multiple services, gigabit LAN remains perfectly serviceable today, and will likely remain that way for a long time. For all intents and purposes, my home network is essentially entirely gigabit, and that's totally fine.

Gigabit isn't the bottleneck you think it is

The hype is real, but the performance rarely is

For all the hype around multigig, very little inside a typical home can truly saturate a gigabit connection. For starters, your internet speed is the first limiting factor. Many ISPs still cap residential upload at well below gigabit speeds, and download under 1 Gbps. Even if you do have a gigabit or symmetrical fiber plan, you’re not really gaining anything with a LAN that exceeds it.

My workstation PC and NAS are both 2.5 GbE capable, and while that link is multigig, everything else in my home is gigabit or lower. Ethernet ports on most consumer devices are limited to 1 Gbps, and this is more than enough for most modern workloads. 4K streaming, quick syncing devices to a NAS, game downloads, and smart home devices all use pretty low bandwidth amounts. In the case of a NAS, the bottleneck is often the drives themselves, with spinning disks that cap out at just over 120 MB/s. Even for enterprise drives with better firmware and large caches, gigabit is enough to transfer most of that output once you factor in overhead, but chances are, you're not spending big on NAS drives if your network is gigabit.

The cost isn't worth it

Even if you could upgrade everything

Upgrading your entire network to multigig gets expensive fast. The switch is usually the first pain point, with a 6-8 port 2.5 GbE switch with PoE still costs significantly more than a simple $25 gigabit unit, and 10GbE switches sit even higher. This cost alone is enough to deter me from making an upgrade, but once you add up the other costs, it just doesn't seem worth it.

Routers with multigig WAN/LAN are also priced at a premium, and many require upgraded power budgets or additional cooling. If you use PoE devices like access points, cameras, or smart home hubs, you can suddenly find yourself paying the PoE+ or PoE++ tax just to support the power draw of newer hardware. And then you have to consider NICs, cables, and APs. Upgrading one component almost always forces upgrades to two or three more, and the cost can snowball out of control fast, while the real-world gain for most households is marginal at best. For me, the cost of upgrading everything else in my house to multigig would far outweigh any kind of tangible performance gain I would get.

When gigabit doesn't hold its own

There are cases where multigig is needed

There are scenarios where gigabit becomes a tangible bottleneck, but they’re much narrower than people think. If you're completing large NAS transfers where your storage medium is primarily flash, a gigabit connection will slow you down significantly, and if you're commonly transferring between your workstation and NAS for example, this is where getting a 2.5GbE link between them makes a bit of sense. If you're commonly working with creative applications with data over a local connection, like 4K/6K footage stored on a NAS, gigabit won't be enough for that either. I personally don't do that kind of creative work, but I can absolutely see why those that do would want a 2.5 GbE+ link to their NAS.

Boosting performance doesn't mean huge upgrades

Upgrading intentionally is important

Instead of replacing every switch and router you own, you can target speed upgrades exactly where they matter, like adding a 2.5 GbE link between two commonly used points that fully saturate a gigabit connection. You can also try link aggregation where supported, though it won't turn your gigabit connection into a 2.5 GbE one. Often times, though, optimizing the bottlenecks that already exist is where you're going to find the most improvement. Replacing slow hardware, placing access points better, and offloading heavy tasks to different devices that have a faster link can make all the difference.

Gigabit is just fine for now

Upgrading to multigig can be fun, but it’s also expensive and rarely transformative for day-to-day use. Gigabit sits at the perfect intersection of performance and value, and for most homes, that’s exactly what a network should be. If you’re a creator or a home lab enthusiast, you’ll absolutely hit the ceiling of gigabit now and then, but that doesn’t mean your entire network needs to move beyond it.