Product Detail BX80562QX6850 Intel Core 2 Extreme QX6850 Kentsfield 3.0GHz 2 x 4MB L2 Cache LGA 775 Processor - Retail . The "Intel Core 2 Extreme QX6850 Kentsfield 3.0GHz 2 x 4MB L2 Cache LGA 775 Processor - Retail" is best product for you. We recommended Intel Core 2 Extreme QX6850 Kentsfield 3.0GHz 2 x 4MB L2 Cache LGA 775 Processor - Retail