WEI SAT 2 SATA 3 Difference .1 Only

Shula 7

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Dec 29, 2015
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I ran the Windows Experience Index for both an OCZ Vertex 2 SATA 2 and a Samsung 850 Pro. The latter scored 7.9 and the other 7.8. I'm curious why the difference is only .1 when one is SATA 2, the other SATA 3.