Typical Internet connection (download-) speeds are:

• Dial-up modem: 28.8 to 56Kbps, depending on your modem.
• ISDN: 64Kbps (1 B-channel) or 128Kbps (2 B-channels)
• Satellite: 700Kbps
• ADSL / DSL: 256Kbps to 1.5Mbps (1500Kbps)
• Cable Modem: 1.5 to 3Mbps (1500 to 3000 Kbps)
• T1: 1.544Mbps (1544Kbps) for a point-to-point dedicated line
• T2: 6.312Mbps (6312Kbps) for a point-to-point dedicated line
• T3: 44.736Mbps (44073Kbps) for a point-to-point dedicated, digital circuit

Your connection speed can be improved by installing some favourable patches as they are provided by "PC Pitstop". For safety they provide also patches to undo the changes they make in your registry. Be sure to download those as well!