Research conducted by broadband-only comparison website, Broadband-expert.co.uk, found out that the higher the speeds advertised, the lower the actual connection speeds in term of overall percentage.
The survey, carried out amongst 41,000 UK Broadband connections, found out that only 2mbps broadband users get value for money with average speeds of 1.8mbps, roughly 90 percent of the advertised specification.
Packages of up to 8mbps offer only 43 percent of the advertised amount with Virgin Media (almost certainly the non-cable version) and Toucan (owned by Tiscali) offering as little as 2mbps, a quarter of what is initially promised.
In this speed range, O2 and Be (which both use the same backbone) fared the best, delivering speeds close to 6mbps.
For speeds above 16mbps, Virgin media achieved the highest overall speeds with 10.4mbps, 52 percent of the quoted top speed; although the average for this speed band was a puny 8.6mbps.
Surprisingly, Be and O2 appear to have performed poorly even if Be's 24mbps speed and O2's 20mbps package regularly rank amongst some of the best offers on the market.
William Harvey, of Broadband Expert, says that contention ratios as well as other factors such as line quality and distance from the exchange, could explain why some provider fared better than others.