The AT80570PJ0876M is the tray processor part number for the Intel Core 2 Duo E8500. This is a dual-core desktop CPU based on the Wolfdale (45 nm) architecture, released in early 2008 AT80570PJ0876M Specifications Technical Information Processor Type: Intel Core E8500 Processor Core: Dual-core (2 Core) Clock Speed: 3.16GHz Bus Speed: 1333MHz L1 Cache: 128KB L2 Cache: 6MB 64-bit Processing: Yes Process Technology: 45nm Processor Technology: Virtualization Technology Processor Technology: Trusted Execution Technology Processor Technology: Extended Memory 64 Technology Processor Technology: Enhanced SpeedStep Technology Processor Socket: Socket T LGA-775 Power Description Thermal Design Power: 65W Environmental Conditions Thermal Specification: 165.4°F (74.1°C) Miscellaneous Additional Information: Execute Disable Bit Intel Thermal Monitor 2 Enhanced Halt State (C1E) Platform Supported: PC