NDA has been lifted off AMD's newest processor for serious overclocking, the Phenom II Black Edition TWKR 42. While this processor isn't meant to be an out of the box high-speed performer, it caters specifically to those who know (TWK) the inside outs of overclocking. Hence, it comes with a speed of 2.00 GHz, but with an unlocked multiplier, high-leakage silicon, and a significantly higher overclocking headroom compared to other consumer-grade chips AMD offers. Currently AMD has only 100 of these ready to sell.

Legit Reviews is one of the first sites to review this chip, and adds an interesting list of myth busters to go with it. The chip is based on a cherry-picked high quality yield of Deneb C2 core. It comes with a vCore value of 1.44 V out of the box, and lets the overclocker decide which bus-multiplier, frequency, and voltage value to use. It comes in an exclusive jewel-case from AMD. Using air-cooling by an XIGMATEK HDT-S1283, the reviewer was able to reach 4.00 GHz on the air and more than 5.90 GHz using liquid-nitrogen cooling.