how much does the cpu actually matter in terms of pc performance?

sadab0

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Aug 31, 2014
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my computer is slow to start and i have 6gb of ram and no viruses/registry errors/fragmented hard drives etc..i would also like to know if i bought this video card (http://www.newegg.com/Product/Product.aspx?Item=N82E16814125486&cm_re=gigabyte_260x-_-14-125-486-_-Product) if my cpu (AMD 5150 1.6GHZ Quad Core) would bottleneck it when gaming? appreciate the help and if it would bottleneck it what would be a good cpu to get for mobo Gigabyte GA-AM1M-S2H?