TechPowerUp checked out about 25 reviews of AMD's new FX-series "Bulldozer" processors and comes to the conclusion that the chip doesn't deliver what it promised.
The performance doesn't live up to expectations, there are no significant clock-for-clock improvements and the load power draw isn't up to today's standards. The pricing could be a saving grace though, and one area where the chip definitely delivers is overclocking potential.
You can read the full summary over here.
After drawing a consensus from about 25 reviews (links in Today's Reviews on the front page), it emerges that:
AMD FX-8150 is missing its performance expectations by a fair margin. Not to mention performance gains in its own presentation, these expectations were built up by how AMD was shaping the product to be a full-fledged enthusiast product with significant performance gains over the previous generation
AMD ill-marketed the FX-8150. Hype is a double-edged sword, and should not be used if you're not confident your offering will live up to at least most of the hype. AMD marketed at least the top-tier FX-8000 series eight-core processors as the second coming of Athlon64 FX.