AMD has officially announced its Turion 64 X2 mobile dual-core processors that introduce support for AMD's hardware virtualization technology and dual-channel DDR2-667 RAM via the new 638-pin Socket S1. Turion 64 X2s are launching in four flavors: a Turion 64 X2 TL-50 with a 1.6 GHz clock speed and 256 KB of cache per core, and TL-52, TL-56, and TL-60 chips with 512 KB of cache per core and respective 1.6 GHz, 1.8 GHz, and 2.0 GHz clock speeds. Surprisingly, AMD has managed to keep similar power envelopes to its MT-series single-core Turions. New TL-50 and TL-52 chips have a thermal design power (TDP) of 31 W, while the TL-56 and TL-60 are rated for 35 W.

Turion 64 X2s are selling for $184 for the TL-50 (1.6 GHz/256 KB), $220 for the TL-52 (1.6 GHz/512 KB), $263 for the TL-56 (1.8 GHz/512 KB), and $354 for the TL-60 (2.0 GHz/512 KB).  No Turion 64 X2-powered notebooks appear to be selling just yet, but AMD claims they will become available by the end of the quarter.

Following the launch of AMD's Turion 64 X2, both ATI and are announcing core logic solutions for the new mobile chip.