Intel released its quad-core Xeon E5335 processor 2 months ahead of schedule:
Intel is shipping the Xeon E5335, an addition to its 5300 series of quad-core processors. It's the fifth quad-core processor that the company has released since entering the quad-core realm this fall. Intel calls the E5335 chip, which runs runs at 2GHz with a 1333 MHz front-side bus, the "next frequency down-bin." That means it's a slower processor and will come in cheaper than the higher-performance quad-core processors.
The early release of yet another quad-core processor is Intel's way of taking one last jab at AMD before the year closes out, according to Charles King, principal analyst of Pund-IT Research.