Comcast at 6 mbps? Maybe they misplaced a zero.

Comcast has been advertising 6 megabits connection speed lately - my experience sure doesn't feel like that, so this morning I ran some tests.

Here's what I got. First, using the test at dslreports:

2005-11-09 09:18:00 EST: 6197 / 736
Your download speed : 6197 kbps or 774.6 KB/sec.
Your upload speed : 736 kbps or 92 KB/sec.

And then using CNET's test:

644 Kbps - You 644 kbps

Am I experiencing problems, or is this typical?

Update
Brian points out that the dslreports test above actually did show that I was getting 6 megabits per second download speed, and he's right. I should've seen that myself, though why the discrepancy between that and the CNET test?

Today I'm getting:

(from dslreports):

2005-11-11 11:49:23 EST: 3058 / 302
Your download speed : 3058 kbps or 382.3 KB/sec.
Your upload speed : 302 kbps or 37.7 KB/sec.

Cnet reports 1758.6 Kbps.