AMD Phenom II X2 570 Black Edition 3.5GHz Dual-Core CPU Processor HDZ570WFK2DGM Socket AM3 Frequency:3.5GHz, Clock multiplier:17.5, Sockets: Socket AM2+, Socket AM3. Bus speed:667 MHz Memory controller, One 2000 MHz 16-bit HyperTransport link (4 GT/s). 2 cores, L2 cache:2 x 512 KB,L3 cache:6 MB,Thermal Design Power:80 Watt. OEM VER. (No Cooling Fan or Heatsink include) Warranty:3 months, fully tested in perfect working condition.