In another round of head-to-head speed tests, the folks over at PhoneBuff have pitted the Exynos-powered Samsung Galaxy S7 edge against the Apple iPhone 6s Plus. The Galaxy S7 with a Snapdragon heart lost miserably the previous time around, but then the Snapdragon vs. Exynos test clearly showed the edge Samsung's chip has.Well, apparently not enough to beat the iPhone 6s Plus. Apple's smartphone