Intel Pentium D 805 Dual Core Processor 2.66GHZ 533FSB<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Manufacturer Part Number: BX80551PE2666FN </span></li><li><span class="a-list-item"> Product Line: Pentium D </span></li><li><span class="a-list-item"> Processor Socket: Intel® Socket T (LGA775) </span></li><li><span class="a-list-item"> L2 Cache Size: 2 MB </span></li><li><span class="a-list-item"> Package Type: Retail Box </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51iIoRQA-%2BL.jpg" noproxy>