FTTP (Full Fibre) vs G.fast / FTTC
Side-by-side comparison, when-to-use-each guide, and instant conversion. Reviewed for 2026.
FTTP: always, when available. It's the permanent solution.
G.fast: short-term option where FTTP unavailable. Better than FTTC, not as good as fibre.
| Aspect | FTTP (Full Fibre) | G.fast / FTTC |
|---|---|---|
| Max speed | 1,000 Mbps (FTTP) | 330 Mbps (G.fast) / 80 Mbps (FTTC) |
| Distance sensitivity | None | High (G.fast degrades beyond 100m) |
| Upload speed | 500-1,000 Mbps symmetric | 35 Mbps (FTTC) / 50 Mbps (G.fast) |
| Future-proof | Yes (10+ Gbps capable) | No (bridging tech) |
| UK coverage | ~50%, growing fast | More widespread but declining |
Frequently asked
Is G.fast worth choosing over standard FTTC?
If FTTP is not available and you're offered G.fast at no extra cost, yes. The speed uplift matters for households with multiple users streaming in 4K. If FTTP is coming to your area within 12-18 months (check Openreach's FTTP rollout map), it may not be worth switching to G.fast in the interim.
How do I check what's available at my address?
Ofcom's connected nations checker (ofcom.org.uk) or Openreach's checker shows exact technology at your address, including whether FTTP is planned and when.
Frequently asked questions
Is G.fast worth choosing over standard FTTC?
If FTTP is not available and you're offered G.fast at no extra cost, yes. The speed uplift matters for households with multiple users streaming in 4K. If FTTP is coming to your area within 12-18 months (check Openreach's FTTP rollout map), it may not be worth switching to G.fast in the interim.
How do I check what's available at my address?
Ofcom's connected nations checker (ofcom.org.uk) or Openreach's checker shows exact technology at your address, including whether FTTP is planned and when.