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Virgin Media vs BT: cable against full fibre

Switching & rentingBy Daniel Hartley8 min readUpdated 25 October 2026

This is the comparison that matters most for anyone in a cabled area who wants speed. Virgin Media's cable network and BT's full fibre are both capable of gigabit downloads, but they are built differently, priced differently and behave differently under load.

Virgin Media's cable network reaches about half the country and offers the highest download tiers plus better upload than part-fibre. BT's full fibre, built on Openreach, is rolling out fast, offers symmetric upload speeds on some tiers, and is available from many competing providers. Where BT full fibre exists, it is usually the more future-proof choice; where it does not, Virgin Media is the faster option.

What BT is actually selling you

BT owns Openreach, the wholesale network that most UK providers rent access to. That means when you buy BT full fibre, you are buying access to the same physical fibre that a dozen other providers can also sell you.

The practical upshot is competition. Because Openreach is wholesaled, BT's retail prices are constrained by competitors offering essentially the same connection. Virgin Media faces no such constraint on its own network.

It also means the technology is standardised. Full fibre runs all the way to your home, terminating at an optical box, with no copper in the path. That removes the distance penalty that makes part-fibre speeds vary street to street.

What Virgin Media is actually selling you

A coaxial cable network, upgraded over two decades to carry gigabit speeds. It does not use the phone line and it does not use Openreach, which is why Virgin Media can offer service where BT full fibre has not yet been built — and cannot offer it where the cable was never laid.

The network is shared at the street level, so peak-time performance depends on local congestion. In practice this is rarely the issue it was a decade ago, but it is the structural difference from full fibre, which has no shared segment until much further upstream.

Side by side— scroll sideways

Virgin MediaBT full fibre
TechnologyCoaxial cable (HFC)Fibre to the premises (FTTP)
Top download tier1,130 Mbps900 Mbps – 1.6 Gbps
Upload on top tierAbout 52 MbpsUp to 110 Mbps, symmetric on some tiers
LatencyLow, shared locallyLower, no shared segment
Competing providersNone on its networkMany on Openreach
AvailabilityAbout half of UK homesGrowing, check your address

Tier speeds are the advertised figures as published in October 2026. Actual availability and pricing are address-specific.

The upload gap is closing, but not closed

Historically Virgin Media's advantage was download and its weakness was upload relative to what a fibre connection could do. That is still broadly true: cable upload tiers sit well below what full fibre can deliver, and on FTTP the upload is often a meaningful fraction of the download rather than a tenth of it.

For a household where two people take video calls simultaneously and someone backs up to cloud storage, the difference is noticeable. For streaming and browsing, it is not.

Which is more future-proof

Full fibre, structurally. Fibre has far more headroom than coaxial cable, and the equipment at either end can be upgraded without touching the cable in the ground. Cable has been pushed a long way with DOCSIS upgrades, but the physics favour fibre eventually.

That does not make cable a bad buy today — it makes it a decision with a shorter horizon. If you are signing 18 months and full fibre is not at your address, cable is a reasonable choice. If full fibre is available and priced similarly, it is the better long-term pick.

The copper switch-off affects this comparison

The old telephone network is being retired, with the process planned to complete in the late 2020s. That does not affect Virgin Media's cable at all — it never used the copper line. It matters for BT customers still on part-fibre, who will eventually be moved to full fibre whether or not they ask.

If you are on BT part-fibre today, check whether full fibre has reached your address. The migration is coming either way, and taking it voluntarily usually means a better deal than being moved later. Our guide on [cable vs full fibre](/guides/cable-vs-full-fibre) explains how to tell which network you are on.

How to decide

  • Check both at your full address. In many streets only one of the two is available, which settles it.
  • If both are available, compare upload honestly against how you actually use the connection.
  • Compare the 24-month total including the annual rise, not the headline monthly price.
  • If the prices are close and you plan to stay put, prefer the full fibre option — it has more room to grow.

Ready to see what's available?

Prices and availability depend on your postcode. We show dated prices for the main Virgin Media tiers, then send you straight to the provider to confirm.

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