This model number indicates relative software performance among AMD processors
Intel Xeon 2.8GHz 533MHz 604pin 512KB CPU, Retail
INTEL XEON E5504 (BX80602E5504) 2.00ghz quad-core processor w/4mb cache 4.8 gt/s qpi lga1366 pin retail box
INTEL XEON E5520 (BX80602E5520) 2.26ghz quad-core processor w/8mb cache 5.86 gt/s qpi lga1366 pin retail box
Supermicro SNK-P0017 1U Passive Heatsink For LGA771