Intel's latest roadmap reveals pricing for its upcoming Penryn-based Xeon DP processors. The costs for Penryn-based Xeon DP processors start at $177 and top out at $1,172.
Intel has two Penryn-based quad-core Xeon DP processors under $300. The quad-core Xeon DP E5405 starts out at $209. The $209 price tag yields a quad-core Xeon DP processor clocked in the 2.0 GHz range, but below 2.33 GHz, with 12MB of L2 cache. Putting forth an extra $47 gets you the quad-core Xeon DP E5410 with its 2.33 GHz clock speed.

As the clock speed increases, the price gaps between quad-core Xeon models get larger. Intel prices the 2.50 GHz quad-core Xeon DP E5420 at $316. Stepping up to the next speed-bin comes at a $139 cost, for the 2.66 GHz quad-core Xeon E5430. The quad-core Xeon DP E5440 and its 2.83 GHz clock speed comes in at $690 -- $235 more than the E5430 with a 170 MHz lower clock speed.