Here's mine from Newark:
London
--2011-06-20 08:52:29--
http://london1.linode.com/100MB-london.bin
Resolving london1.linode.com... 109.74.207.9
Connecting to london1.linode.com|109.74.207.9|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: `100MB-london.bin'
100%[======================================>] 104,857,600 74.6K/s in 20m 50s
2011-06-20 09:13:19 (81.9 KB/s) - `100MB-london.bin' saved [104857600/104857600]
Dallas
Resolving dallas1.linode.com... 69.164.200.100
Connecting to dallas1.linode.com|69.164.200.100|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: `100MB-dallas.bin'
100%[======================================>] 104,857,600 6.21M/s in 14s
2011-06-20 09:17:03 (6.92 MB/s) - `100MB-dallas.bin' saved [104857600/104857600]
I would say the London results are not that off
I would guess it depends on routing...