Dell OptiPlex 740 Athlon 64 X2 4600+ 2.4GHz 1GB 80GB CDRW/DVD XP Professional Desktop Dell OptiPlex 740 Athlon 64 X2 4600+ 2.4 GHz Desktop PC General Features: OptiPlex 740 Desktop chassis Low-profile (small desktop) design Microsoft Windows XP Professional pre-installed w/CoA AMD Athlon 64 X2 4600+ 2.4 GHz Socket AM2 Dual-Core processor Supports HyperTransport, 2 x 512 KB L2 cache