The 6-core Dunnington based model should be announced on September 14, according to company roadmap. The line-up will include three models: Xeon X7460 with 2.67GHz clock frequency and 130W TDP, Xeon E7450 with 2.4GHz frequency and 90W TDP and low-voltage Xeon L7455 with 65W TDP and 2.13GHz clock speed. All processors will be built with Intel's new 45-nanometer Penryn technology and will support 1066MHz bus speed. Xeon X7460 will be equipped with 16MB L3 cache while Xeon L7455 and Xeon E7450 will have a 12MB L3 cache onboard.

New Xeon X7460 and Xeon L7455 processors will be priced at $2729, and Xeon E7450 – at $2301. Intel hasn't officially announced when it might release 6-core chips for the desktop and laptops.