Fibre vs cable vs DSL vs 5G vs satellite: which home internet is best?
Contents
Most homes can choose between two or three technologies, and the advertised speed alone says little about how each one feels day to day. Here is how they really compare, from the point of view of someone who measures lines for a living.
The five technologies in one table
| Technology | Typical download | Typical upload | Typical ping | Evening slowdown |
|---|---|---|---|---|
| Fibre (FTTH) | 300 Mbps to 2 Gbps+ | Often equal to download | 5 to 20 ms | Rare |
| Cable (DOCSIS 3.1) | 300 Mbps to 1 Gbps+ | 20 to 100 Mbps on many plans | 10 to 30 ms | Possible in busy areas |
| DSL (ADSL, VDSL) | 5 to 100 Mbps | 1 to 40 Mbps | 15 to 40 ms | Rare, but low ceiling |
| 5G home internet | 100 to 500 Mbps | 10 to 100 Mbps | 20 to 50 ms | Common at peak hours |
| Satellite (low orbit) | 50 to 300 Mbps | 10 to 40 Mbps | 25 to 60 ms | Depends on the area |
These are common real-world ranges, not promises: your own result depends on your plan, your area and your home network. A speed test over a cable tells you where you actually stand.
Fibre: the reference
Fibre to the home carries light all the way to an optical socket in your home. Distance to the exchange barely matters, so a 1 Gbps plan gives close to 940 Mbps on a gigabit Ethernet port. Many fibre plans are symmetric: upload equals download, which changes everything for cloud backups, video calls and anyone who streams or sends large files. Ping is the lowest of all fixed technologies. How it works inside: how FTTH fibre works.
Cable: fast down, slower up
Cable internet runs over the coaxial network originally built for TV, using the DOCSIS standard. Download speeds rival fibre, but upload is usually much lower because most of the spectrum is reserved for the downstream direction. The cable segment is also shared by a neighbourhood: when everyone streams in the evening, speed and ping can suffer. If your cable speed collapses at the same hours every day, read why speed drops in the evening.
DSL: fine for small needs
ADSL and VDSL use the copper telephone line. Speed falls with every hundred metres between you and the street cabinet or exchange, so two neighbours can get very different results. A short VDSL line can reach 50 to 100 Mbps; a long ADSL line may not reach 10. Tips to get the most from it: speed up slow DSL.
5G home internet: no installation, more variation
A 5G router uses the mobile network, so it can be running the day it arrives. Where the signal is strong, it beats DSL and can rival cable. But the cell is shared with every phone around, so speed varies with the hour, the weather and even where you put the router in the room. Placement tips and the full comparison: 5G home internet vs fibre.
Satellite: for where nothing else reaches
Low-orbit constellations changed satellite internet: ping is now in the tens of milliseconds instead of more than half a second, which makes video calls and casual gaming possible. It still needs a clear view of the sky and usually costs more than fixed options. Details: satellite internet speed and latency.
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How to choose
- Fibre available? Take it, even at a modest speed: 300 Mbps fibre often feels better than 1 Gbps cable because of upload and ping.
- No fibre: cable if you mostly download and stream; 5G home internet if the signal is strong at your address and you want flexibility.
- Remote area: compare 5G coverage maps first, then low-orbit satellite.
- Gamers and remote workers: look at ping and latency under load, not only download speed.
- Not sure how much speed you need? Our 3-question quiz gives a figure for your household.
Already connected? Run the test with explanations for your network: Xfinity, Spectrum, AT&T Fiber, Verizon Fios, T-Mobile Home Internet, BT, Virgin Media and more providers.
Sources and further reading
Frequently asked questions
Is fibre always faster than cable?
Not always on download: a 1 Gbps cable plan downloads as fast as a 1 Gbps fibre plan. Fibre wins on upload, ping and stability at peak hours.
Is 5G home internet good enough to replace a fixed line?
Often yes for streaming and browsing where the signal is strong. It is less consistent than fibre or cable, so test it at peak hours before giving up a fixed line.
Which technology has the lowest ping?
Fibre, then cable and DSL. 5G and low-orbit satellite come next, while geostationary satellite has by far the highest ping.
The SpeedFibre team Guides written and reviewed by a telecom engineer specialised in fibre optics (FTTH), with more than 8 years of hands-on network maintenance and measurement. Editorial policy.
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