Throughout the years, AMD's strategy against Intel has been to undercut the Santa Clara chip maker in price, though that's not necessarily by design. Clock for clock, AMD's processors don't usually pack the same performance punch as Intel's silicon, and that's especially true with the launch of Intel's Ivy Bridge architecture. In response to Ivy Bridge, AMD decided another round of price cuts was in order.
Not all of those represent price cuts. The FX-4100 and FX-4170 are both unchanged, for example, while the FX-6100 and FX-6200 dropped by $10 each. AMD's eight-core processors saw bigger reductions; the FX-8120 dropped by $20 and the FX-8150 by $40.