We recently got a look at Samsung's new Ivy Bridge-enhanced Series 5 laptops, but it turns out that's not the only refresh the line has gotten this month. Samsung's also now rather quietly introduced a pair of new AMD-based models on its website, including an $850 14-inch version with a quad-core A10-4655M APU, and a $700 13.3-inch model with a quad-core A6-4455M (both otherwise known as Trinity processors). You'll also get an AMD Radeon HD 7500G GPU on the 13.3-incher (while the 14 relies on integrated graphic