FSB Parity

Hi Guys was looking to upgrade my Pentium Dual Core procesot to a Core 2 Quad and i came across this feature in the CPU specs called FSB Parity. Anyone has any idea what it is and what it does?

I dont see the word Parity anywhere in that article. Way to go.

I understood FSB parity as the matching of frequency between the FSB and Memory in order to maximize data flow without controllers seeking to clip bus or memory speed...a way of seeking parity. parity would be putting 1333mhz ddr2 on a 1333mhz bus, or with dual channel using 667mhz ddr2 in dual channel mode to fill the bus thus reaching full parity. non parity would be using ddr2 800 in dual channel mode to fill a 1333mhz bus. The memory controller would clip the frequency until it found something it could work with say 620 or less ... you can see what happens... you are lowering the theoretical threshold by using non parity memory. many motherboards and even some of the new core i 7 may work with such uneven multipliers but what does it do to overall performance?

No. You're thinking of a different meaning for the word "parity". The kind of speed matching you're referring to is called "buffering".

In usage for a computer bus (be it a front side bus, PCI, SCSI, etc.), parity is used for error correction, as described in this Wikipedia article.

As an example of the parity signals used on the bus, here's an excerpt from Section 5.1 of the Intel Xeon Processor 5000 Series Datasheet, describing the parity signals used to detect errors on the address bus:

so if you could buy the q9650 (which intell lists an non fsb parity) for the same price as the q0550(which intell lists as fsb parity)
would you chose the 9550 for the fsb parity feature over the 9650?

PARITY HARITY!