BX80574E5420A - Intel Xeon E5420 Quad Core 2.5GHz 12MB L2 Cache 1333MHz FSB Socket J(LGA771) 45NM 80

BX80574E5420P - Intel Xeon E5420 Quad Core 2.5GHz 12MB L2 Cache 1333MHz FSB Socket J(LGA771) 45NM 80

BX80574E5430A - Intel Xeon E5430 Quad Core 2.66GHz 1333MHz FSB 12MB L2 Cache Socket LGA771 Processor

BX80574E5430P - Intel Xeon E5430 Quad Core 2.66GHz 1333MHz FSB 12MB L2 Cache Socket LGA771 Processor

BX80574E5440A - Intel Xeon E5440 Quad Core 2.83GHz 1333MHz FSB 12MB L2 Cache Socket LGA771 Processor

BX80574E5440P - Intel Xeon E5440 Quad Core 2.83GHz 1333MHz FSB 12MB L2 Cache Socket LGA771 Processor

BX80574E5450A - Intel Xeon E5450 Quad Core 3.0GHz 12MB L2 Cache 1333MHz FSB Socket LGA771 45NM 80W Processor

BX80574E5450P - Intel Xeon E5450 Quad Core 3.0GHz 12MB L2 Cache 1333MHz FSB Socket LGA771 45NM 80W Processor

BX80574E5540A - Intel Xeon E5540 Quad Core 2.53GHz 5.86GT/s QPI 8MB L3 Cache Socket FCLGA1366 Processor

BX80574L5410A - Intel Xeon L5410 Quad Core 2.33GHz 12MB L2 Cache 1333MHz FSB Socket J (LGA771) Processor

BX80574L5410P - Intel Xeon L5410 Quad Core 2.33GHz 12MB L2 Cache 1333MHz FSB Socket J (LGA771) Processor

BX80574L5420A - Intel Xeon L5420 Quad Core 2.50GHz 1333MHz FSB 12MB L2 Cache Socket LGA771 Processor