g620 vs q6600 vs e8400

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they are all superseded models. None of them are really good for gaming. If i were to pick any, i'd go the g620. I dont know if it would be more powerful than the other two, but at least its upgradeable to something decent like an i3 or i5 later down the track.
http://www.xbitlabs.com/articles/cpu/display/pentium-g850-g840-g620_4.html#sect0 heres a review of the 620. Its beating out older c2d 7500 processor, so its probably pretty close to the e8400, but its newer tech and upgradeable to something really good.
they are all superseded models. None of them are really good for gaming. If i were to pick any, i'd go the g620. I dont know if it would be more powerful than the other two, but at least its upgradeable to something decent like an i3 or i5 later down the track.
http://www.xbitlabs.com/articles/cpu/display/pentium-g850-g840-g620_4.html#sect0 heres a review of the 620. Its beating out older c2d 7500 processor, so its probably pretty close to the e8400, but its newer tech and upgradeable to something really good.
 
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