ITShootOut.com posted a review on the AMD Phenom II X2 555 Black Edition

Today we are looking at one of the processors from AMD's 2010 line up, designed to go up against Intel's Pentium dual cores at the important £75 inc. VAT price point. Intel would no doubt prefer us to pitch this chip against its Core i3 530, but as that processor costs 20% more that wouldn't be a fair comparison. In actual fact the closest contemporary competitor is the Pentium G6950, which also uses the Clarkdale core. Intel released this chip rather quietly obviously mindful that without blistering clock speeds the Clarkdale architecture isn't as competitive as it would like. Either chip can be snapped up for around £75 from the cheapest online sources.

AMD Phenom II X2 555 Black Edition Review