Apple quietly made changes to the Mac Pro lineup, adding a 3.33 GHz processor option to the entry-level, single-CPU, quad-core model.

Courtesy of Apple
The optional 3.33 GHz processor adds $1,200 to the base $2,499 price. This makes the new quad-core model, one of the entry-level options for the Mac Pro, more expensive than the 8-core base model; $3,699 vs. $3,299.
Additionally, the new four-core 3.33 GHz model now has the fastest processor in the Mac Pro line, though the 8-core Mac Pro should be more efficient when running multi-threaded applications that can take advantage of the higher number of cores available.

