Ive only been on NTL a few days (1MB) but I seem to always get about the same...
Your Connection
Direction
Actual Speed
True Speed (estimated)
Downstream
964 Kbps (120.5 KB/sec)
1041 Kbps (inc. overheads)
Upstream
91 Kbps (11.4 KB/sec)
98 Kbps (inc. overheads)
(
www.adslguide.org.uk)