8x4 8 downstream 4 upstream modems. These chipsets have been around since the start of last year.
This doesn't mean much - the modems released with the original 512kbps services were in theory capable of 38Mbps and since the ntl:Home 120 this theoretical capacity went up to 51Mbps.
http://www.motorola.com/Business/US-...teways/SBG6580
http://www.cisco.com/web/consumer/su...m_DPC3010.html