Can I use an AGP 8x video card in a 4x spot?

While looking online for a new video card, some cards say 4x/8x, while other cards simply say just 8x.



Will the cards that say just "8x" work in a 4x spot?



I'm not a gamer, but I'm replacing my video card because it lags while playing videos.|||Vid card chart

http://www.youtube.com/watch?v=kCRPWe2yU…