BmR posted a review on the AMD Phenom II X4 940 Black Edition CPU

Nearly every enthusiast who has overclocked a computer system has wished that processors weren't restricting them from the hobby they love. Even I can still recall the good old days (less than four years ago) before Intel and AMD locked the clock multiplier on their processors and overclocking was a combination of factors and no limited to the stability of a motherboard. Intel believes that their Core i7-965 Extreme Edition (EE) processor series is worth the $1000 price tag, but AMD begs to differ. Perhaps the timing is right then, and consumers won't hastily spend unnecessary cash on an expensive unlocked processor when AMD offers their Black Edition Phenom II X4 940 CPU for just $220. Benchmark Reviews compares the field, and tests the X4 940BE HDZ940XCGIBOX against the Intel Core i7-920.

AMD Phenom II X4 940 Black Edition CPU HDZ940XCGIBOX Review