GuyN said:Different manufacturers (Gainward vs. Gigabyte in your case) do slightly different things with the card and its configuration. This can be a different cooler, different factory clock settings, sometimes even a different board layout. In this case, the Gigabyte model is a well-done non-reference design; its cooler is thinner and easier to keep clean than others, while the Gainward model uses a cooler that works just as well but takes up three slots.
So if you have other cards to plug in, the Gainward will take up the two slots down from your first PCI-e slot; the Gigabyte will take up only one adjacent slot. Beyond that, the Gigabyte card is slightly the better performer. I would prefer the Gigabyte card if my choice were between those two.
Thanks so much again.
A stupid questionoes my motherboard have enough slots to have the Grainward one(I don't have any other graphics card to take the others slots),I don't know how do these slots work anyways.
Another stupid question:Should I overclock?If so,how to?Is it worth it?