Summary: Go for the Core 2 Extreme QX9770. The QX9770 is the king of the 775 socket, though this one here I bought is the king of the 1333Mhz front side bus speed on the 775 socket. The QX9770 has a front side bus speed of 1600mhz, hence the king of the 775 socket.
Summary: Wanted to breath some new life into my aging computer, so I found the best processor that my board would accept, this is the one. The dual core that I was using before would regularly run at 100% and eventually overheat, this one stays cool and I've yet to use more than 70% of its power.
Summary: I bought my Gigabyte motherboard several years ago and opted to go with a more expensive model with room for expansion. At the time, money was a little tight so I only bought 2 GB of memory and went for a 32-bit dual core CPU.
Summary: The Manufacturing Tech size difference is a big deal, The smaller dye sizes run on less voltage, and will produce less heat at identical clocks. The heat jump during use at higher clocks is also not as drastic.
Pros: I own both the QX6850 and the QX9650, both are on good over clocking boards.The QX6850 runs hotter and does not over clock as well. Both are very fast, but the QX9650 is (without a doubt) the faster of the two. The smaller dye size (Manufacturing Tech) and a newer-better architecture gives the QX...