Graphics card... PCI-E 2.0

My 4850 that i will be buying is PCI-E 2.0... my MB that i will be buying is PCI-E, will they work together, and will this affect the output of the graphics card?
Any help?
Any help?

Flight Simulator and other chat
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https://forums.simviation.com/phpBB3/viewtopic.php?f=9&t=26647
The MB you intend buying, is it PCI 2.0 Compatible?