Sparkle graphics cards have been quietly performing very well in recent years. Whilst not necessarily the first brand you think of when choosing your next GPU, they nonetheless have been very solid, with some models being up there with the best. Today we're taking a look at a highly modified GTX560Ti which is part of Sparkle's Calibre range. Similar to the RoG models from ASUS, or the MSI Lightning range etc., the Calibre variant has a good overclock and the de rigueur twin fan cooler. So does it sparkle brightly or merely twinkle and fade?