A few hundred unlucky individuals received counterfeit Intel Core i7-920 processors in March 2010. Although the parts looked genuine from the outside at first glance, a closer inspection revealed ...

and the Core i7-920). The extreme Core i7-965 version has an unlocked clock multiplier and runs, out of the box, at 3.20 Ghz. The i7-940 has a 2.93 Ghz clock, while the i7-920 is a 2.66 Ghz processor.