Myu question was will my mobo able to run those two cards.I mean whats al lthat PCI-E and PCI-E 2 thing.My board,i think is PCI-E and these two are PCI-E 2.So will my board handle either of these.
all pci-e 2.0 cards will work in ANY pci-e 1.1 slot, so as long as your mobo isn't from the 90s, you should be fine. the only problem is that pci-e 2.0 is twice as fast, so it could slow down high end cards, but with a 4830 or 9800gt, you should not notice any speed difference, only if you have a gtx280 ors 4870x2. the 4830 destroys the 9800gt, it overclocks like CRAZZY, if you can, get the msi version, its the best overclocker and even uses less energy then the stock ones (because it uses solid capacitors and ferrite chokes=cleaner power and better volteges). most 4830s reach the max limit of 700mhz, which is 20% higher then stock.