AMD plans to launch Calisto dual core K10.5 45nm in one week, on the first day of Computex. Sources confirmed that AMD plans to launch Phenom II X2 550 Black edition at Computex and this CPU runs at 3.1GHz and has a massive 7MB total cache size. The CPU is Black Edition which means it will come with an unlocked multiplier and you should be able to overclock it nice and easy. The launch will take place on Tuesday June 2nd, in Taiwan and the rest of the world.

Since this dual core is harvested from Quad core Deneb 45nm core, Calisto, Phenom II X2 550 has 2x512KB L2 cache, 512KB for each active core and 6MB of L3 cache to be shared among CPUs.

We didn’t get a confirmation yet but we suspect Phenom II X2 545 at 3.0GHz non Black edition will also be launched at Computex. We still don’t know the price-tag to go with this AMD’s CPU but we expect it to be aggressive and to go for many a Pentium Dual core Core 2 duos' throat.