XK250 - 1.60Ghz 1066Mhz 8MB Cache LGA771 Intel Xeon L5310 Quad-Core CPU Processor Sale $39.00 Retail $129.00
HP787 - 1.60Ghz 1066Mhz 8MB Cache LGA771 Intel Xeon E5310 Quad-Core CPU Processor Sale $34.00 Retail $129.00
R420E5-2450 - 2.10Ghz 8 GT/s 20MB Cache LGA1356 Intel Xeon E5-2450 CPU Processor Sale $59.00 Retail $299.00