hi i have pc runnig with: Pentium D 805 -2.66 ghz -FSB 533 mhz -L2 cache 1 mb -core smithfield 90nm i receive a free dual core e2160: -1.80 ghz -FSB 800 mhz -L2 cache 1mb -core allendale 65 nm my qst is should i pull off the 805 and use the e2160???? ps: im a gamer and always converting video formats (avi,divx to dvd,and dvdriping).
OK, this doesn't really answer your question, but I assume that you have already checked to see that your motherboard is compatible with the new CPU? There is a possibility that it is not. You will also need to replace memory if you want it to run at full speed.
Then go for it, it's certainly an upgrade, and it will save you a lot of energy. Plus it's one of the easiest CPUs to overclock in the world.