With the departure from Netburst, Intel radically changed its way from increasing clock speeds to becoming much more power efficient. The first processor in this new way of thinking was the Xeon LV, based on the 65 nm Sossaman core, which was closely related to the 65 nm Pentium M Yonah core. However, it was a 32-bit processor and had limited use for server applications. The 64-bit 65 nm Core architecture arrived in 2006 and successfully competed with AMD's Opteron in the form of the dual-core Xeons with Woodcrest core in 2006 and quad-core Xeons with Clovertown core in 2007. The overall strategy continues today with Sandy Bridge-based Xeon processors.