Ethernet is usually faster than WiFi, and it's almost always more reliable, with lower latency and far less jitter. WiFi has closed the gap on paper: a modern router can deliver hundreds of megabits or more near the router. But WiFi speed falls with distance, walls, and interference, while a cable delivers the same performance in the farthest room as it does next to the router. The practical answer is to wire the devices that sit still and matter most, and use WiFi for everything else.
Quick answer:
- Ethernet gives consistent speed, lower ping, and minimal jitter. Best for gaming, desktop PCs, consoles, and streaming TVs.
- WiFi is convenient and fast enough for most phones, tablets, and laptops, especially close to the router.
- A gigabit Ethernet connection supports up to roughly 940 Mbps of real throughput.
- If your plan is slower than your WiFi, the difference in download speed may be small, but the stability gap remains.
- Testing on both is the easiest way to see how much your WiFi is costing you.
Is Ethernet faster than WiFi?
In raw speed, it depends on the equipment and the distance. In consistency, Ethernet wins every time.
A standard gigabit Ethernet port, found on almost every router, PC, and console, handles 1,000 Mbps. After protocol overhead, real-world tests typically top out around 940 Mbps. Newer routers and PCs increasingly include 2.5 Gbps ports, which matter if you have a multi-gigabit fiber plan.
WiFi standards advertise much bigger numbers, but those maximums assume ideal lab conditions, multiple antennas, and wide channels. In a real home, a single device on WiFi 6 might get several hundred Mbps in the same room as the router and much less two walls away. The exact numbers vary widely by router, device, and building, which is precisely the point: WiFi performance is situational.
Why WiFi speed varies so much
WiFi is radio. Every device on your network takes turns using the same airwaves, and so do your neighbors' networks on overlapping channels. Walls, floors, mirrors, appliances, and even people absorb or reflect the signal. When a transmission fails, it's resent, which costs time and adds latency. Ethernet has none of these problems: each cable is a dedicated, shielded link between two devices.
Ethernet vs WiFi compared
| Factor | Ethernet | WiFi |
|---|---|---|
| Typical real-world speed | Up to ~940 Mbps on gigabit; more on 2.5G and 10G ports | Varies widely; strong near router, drops with distance and walls |
| Latency added at home | Negligible, typically under 1 ms | Usually a few ms, with spikes under interference |
| Jitter | Very low | Low to high depending on signal and congestion |
| Reliability | Very high | Affected by interference, distance, and device count |
| Range | Up to 100 m (328 ft) per cable run | Typically one floor or a few rooms per access point |
| Security | Requires physical access | Reachable from outside; protected by WPA2/WPA3 |
| Convenience | Requires cables and ports | Works anywhere in range, including on mobile devices |
Ethernet vs WiFi for gaming
For online gaming, the main advantage of Ethernet isn't download speed. Games use surprisingly little bandwidth. What matters is latency and consistency. A wired connection removes WiFi's retransmission delays, which are a common cause of random lag spikes and rubber-banding.
If your ping looks fine on average but games still feel inconsistent, compare jitter on WiFi and Ethernet. Our guide on what jitter and packet loss are explains how to read those numbers, and our article on what a good ping for gaming is covers target ranges.
For cloud gaming services, which stream video from a remote server and react to your inputs in real time, Ethernet is even more valuable, since both bandwidth and latency need to stay steady.
Ethernet vs WiFi for streaming and working from home
For streaming, WiFi is often good enough, since services buffer a few seconds ahead. But a TV far from the router, on a crowded 2.4 GHz network, is one of the most common buffering complaints. Wiring the TV removes that variable entirely.
For video calls and remote work, the stability argument returns. Calls are real-time, so a brief WiFi hiccup becomes frozen video or a dropped word. A desktop or docked laptop on Ethernet is a simple upgrade for anyone who spends hours a day on calls.
How to test whether WiFi is slowing you down
The simplest way to see the difference is to measure both on the same device.
- Connect your laptop or PC to the router with an Ethernet cable and turn WiFi off.
- Run a speed test and note download, upload, ping, and jitter.
- Unplug the cable, turn WiFi back on, and stay next to the router. Run the test again.
- Move to the room where you usually use the device and run the test a third time.
- Compare the three results.
If the wired result is close to your plan's speed but WiFi in your usual room is much lower, WiFi is your bottleneck. If even the wired result is low, the issue is your plan, modem, or ISP. Our WiFi speed test page has more on testing room by room.
On Windows, you can confirm your wired link speed under Settings > Network & internet > Ethernet, which shows the negotiated link speed. On macOS, open System Information and look under Network, or hold Option and click the WiFi icon to see the current WiFi transmit rate.
Which Ethernet cable do you need?
Most homes don't need anything exotic. Here's a quick guide to common categories.
| Cable | Max speed | Notes |
|---|---|---|
| Cat 5 | 100 Mbps | Outdated; avoid for new installs |
| Cat 5e | 1 Gbps | Fine for gigabit plans and most homes |
| Cat 6 | 1 Gbps (10 Gbps on short runs, up to about 55 m) | Good default choice |
| Cat 6a | 10 Gbps up to 100 m | Best for long runs and future-proofing |
| Cat 7 / Cat 8 | Higher specs | Rarely necessary for home use |
A damaged or poorly crimped cable can silently drop to 100 Mbps, so if your wired speed seems stuck there, swap the cable first.
Options when running Ethernet isn't practical
Not every home makes cable runs easy, especially rentals. These alternatives sit between WiFi and a direct cable.
Mesh WiFi with wired backhaul
A mesh system places multiple access points around the home. Connecting the nodes to each other with Ethernet, called wired backhaul, gives the best mesh performance, and many nodes include Ethernet ports to wire nearby devices. Our comparison of mesh WiFi vs WiFi extenders covers the trade-offs.
Powerline adapters
Powerline adapters send network data through your home's electrical wiring. Performance varies greatly with wiring quality and whether outlets share a circuit. They can be a decent fix, but test the result rather than trusting the speed on the box.
MoCA adapters
MoCA uses existing coaxial TV cable. In homes with coax outlets in the right rooms, it can deliver speeds and latency close to Ethernet, making it a strong option for wiring a TV or game console.
When to use Ethernet and when to use WiFi
A simple rule: if a device doesn't move and it matters, wire it. That usually means gaming consoles and PCs, desktop work computers, smart TVs and streaming boxes in the main living room, and network storage devices.
Use WiFi for phones, tablets, laptops on the move, smart home gadgets, and anything where a cable would be impractical. Moving even a few heavy users onto Ethernet also frees up WiFi airtime for everything else, so your wireless devices often get faster too.
Bottom line
Ethernet is the more consistent, lower-latency choice and is typically faster in any room that isn't right next to the router. WiFi is more than adequate for mobile devices and everyday browsing, and modern routers are impressively fast at close range.
Wire your stationary, high-priority devices, and let WiFi handle the rest. To see what you're actually getting today, test your speed on WiFi and on a cable and compare the two results.
