as the other guy said they are both way outer date and socket 775 is a dead socket having said that probably about 5 or 6 years ago i had a pentium d 2160 stock speed was 1.8 but was a really good overclocker was happy to do 3ghz all day every day and i wouldnt touch one of the old celerons with a 10 foot pole. honestly for what you want they are both garbage, based on my experience with my 2160 i would take the 2140 and hope it overclocks well too. it will then make a good web browsing or htpc cpu thats about it!