Intel Core i5 Processor i5-750 2.66GHz 8MB LGA1156 CPU, OEM
Intel Xeon Quad-Core X5470 3.33GHz 1333MHz 771pin 12MB CPU, OEM
INTEL Core 2 Duo e7400 (BX80571E7400) 2.8ghz em64t dual core processor w/3mb cache 45nm 1066mhz socket 775 retail boxed w/cooling fan (3 years warranty)
INTEL XEON X5570 (BX80602X5570) 2.93ghz quad-core processor w/8mb cache 6.4 gt/s qpi lga1366 pin retail box (3 years warranty)