You won't be able to tell the difference in performance by today's standards. The Q9550 is better in my opinion because it's the newer architecture, less wattage, and more cache.
You won't be able to tell the difference in performance by today's standards. The Q9550 is better in my opinion because it's the newer architecture, less wattage, and more cache.
I would think the QX6850 Extreme would be faster but they are in a dead heat. The Q9550 is newer so it has that advantage. Buy whichever has less use and wear, if used and is cheaper.
Just to make sure, you do have a LGA 775 socket motherboard right? You're not going to try and put the Q9550 in your current motherboard? That won't work.