General information
Type: CPU / Microprocessor
Market segment: Server

Model number: X5660
CPU part numbers:
AT80614005127AA is an OEM/tray microprocessor
Frequency: 2800 MHz
Maximum turbo frequency: 3200 MHz (1 or 2 cores)
3067 MHz (3 or more cores)
Bus speed: 6.4 GT/s QPI (3200 MHz)
Clock multiplier: 21
Package: 1366-land Flip-Chip Land Grid Array (FC-LGA10)
Socket: Socket 1366 / B / LGA1366
Size: 1.77" x 1.67" / 4.5cm x 4.25cm

Include:
*1 pcs CPU

Note: pulled from working machine , cpu will be final double tested before shipping.