Intel, the world"s largest chip maker, is scheduled to unveil a pair of Xeon quad-core processors with 50-watt thermal envelopes on March 12. Previous chip models had 120 and 80 thermal watt envelopes. The Xeon L5320 ($519 per 1,000 units shipped) and the L5310 ($455 per 1,000 units shipped) have a total of 8MB of L2 cache, use a 1066MHz FSB and offer clock speeds of 1.86GHz and 1.6GHz, respectively. The two chips will work with Intel"s Bensley server platform and have been designed to be "drop-in" compatible with existing dual- and quad-core Xeon processors. In a statement, Intel said a number of vendors will start offering these chips, including Acer, Dell, Digital Henge, Fujitsu-Siemens, Hewlett-Packard, HCL Enterprise, IBM, Rackable Systems, Samsung, Verari Systems and Wipro Technologies.