Brand Intel Series Pentium dual-core CPU Socket Type LGA 775 Core Wolfdale Multi-Core Dual-Core Operating Frequency 2.5 GHz L2 2 MB L3 0 MB Manufacturing Tech 45 nm Thermal Design Power 65 W Warranty 12 Months excluding physical damages (see for terms and details below) Warranty Details 1-Year Manufacturer's Warranty: this warranty is offered directly by the manufacturer. Should the item become defective within the manufacturer's warranty period (physical damages and damages caused by incorrect usage excluded). Customers may send the unit back to DX's Hong Kong office. DX will help forwarding the item to the manufacturer for repair or replacement. And will look after the progress. The customer will need to cover shipping fees both ways. Features CPU Clock Speed: 2.5GHz external frequency: 200MHz frequency multiplication: 12.5; FSB BUS frequency: 800MHz; CPU slot type: LGA775; PIn number: 775; CPU core: Wolfdale; Dual-core; craftsmanship: 45nm; TDP: 65W; Core voltage: 0.85-1.3625V; transistor number: 228 million; Core area: 82 square milimeter; CPU first level cache: 64KB second level cache: 2MB; instruction set: MMX SSE SSE2 SSE3 SSSE3 EM64T; Working temperature: 74.1'C; Intel SpeedStep Dynamic Energy Save technology Packing List 1 x CPU