That is a year old, but at that time, at least some Agility models were better than the Vertexes. Apparently OCZ uses various brands of NAND chips in the Agility series, so it's kind of a luck of the draw deal. I also read that the Vertex series has better garbage collection, although I don't know whether that's true.
So, basically, there's no way to tell which is better. Maybe OCZ could give you some updated information about the differences, or you could do some in-depth Google searching. Or you could just accept the offer.
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