Cambridge Fibre vs BT:
Broadband Performance Comparison

Cambridge Fibre Logo

Performance Score
Average Download 209.28 Mbps
Average Upload 186.13 Mbps
Average Latency 4ms (smaller is better)
BT Logo

Performance Score
Average Download 35.85 Mbps
Average Upload 13.44 Mbps
Average Latency 11ms (smaller is better)
 Cambridge Fibre LogoBT Logo
Service TypesFibreVDSL, Fibre
Average Speed Test Result209.28 Mbps35.85 Mbps
Tests above 50 Mbps91%35%
Speed Range Rank1st best speed range49th best speed range
Speed Test Rank22nd fastest1st fastest

Cambridge Fibre vs BT: Speed Comparison

Cambridge Fibre Broadband is the most tested broadband provider in the UK, while BT is the UK's second most tested ISP with 7,072,252 tests performed this year, compared to Cambridge Fibre's 4,553 speed tests. While looking at the fastest speeds seen from each broadband provider often doesn't tell the full story — BT is first with 6,068.11 Mbps, Cambridge Fibre 11th with 939.51 Mbps — looking at download speed ranges alongside the percentage of speed tests higher than 50 Mbps will give a clearer picture. In this case, Cambridge Fibre has a better broadband speed range than BT, ranking first nationally, compared to BT coming in at 49th place. 91% of Cambridge Fibre's internet speed test results were higher than 50 Mbps, compared to 35% of BT's.

Cambridge Fibre vs BT: Performance Ranges Overview

We class broadband speed distributions as follows: very slow under 10 Mbps; slow 10-30 Mbps; adequate 30-60 Mbps; good 60-80 Mbps; fast 80-300 Mbps; very fast over 300 Mbps.

Looking at broadband performance, 5% of Cambridge Fibre's internet speed tests were slow or very slow. This is better than BT, who had 50% of their broadband speed tests classied "slow" or worse. For the average user needing only adquate or "good" internet service, 42% of BT's download speeds fell between 30 and 80 Mbps. This is 2.1 times higher than the 20% of Cambridge Fibre's speed test results in the same range. At the speedier end of the scale, 75% of Cambridge Fibre's broadband speed test results were faster than 80 Mbps, compared to only 8% of BT's.

Cambridge Fibre Broadband Performance Ranges

BT Broadband Performance Ranges

Cambridge Fibre vs BT: Performance by Location

Click to use map

Fastest locations for Cambridge Fibre

LocationMedian Speed
209.31 Mbps
107.01 Mbps

Fastest locations for BT

LocationMedian Speed
West Sussex
816.62 Mbps
808.48 Mbps
455.54 Mbps
Mid and East Antrim
432.52 Mbps
317.22 Mbps
Froxfield and Privett
298.01 Mbps
287.53 Mbps
284.4 Mbps
269.85 Mbps
264.65 Mbps

Last updated: 26 Jul 2021