AMD Phenom II X3 720 2.8 GHz CPU Processor Socket AM2+ AM3 938-Pin Bus speed: 667 MHz Memory controller,One 2000 MHz 16-bit HyperTransport link Clock multiplier: 14 Sockets: Socket AM2+ AM3 L2 cache: 3 x 512 KB 16-way associative caches Warranty:3 month