Happy first-quarter birthday, Kepler. Your reference design is old enough for companies like EVGA, MSI, ASUS, Zotac to push your various clock speeds to the limit, while using custom coolers to avoid meltdown. Arguably the time to upgrade is now and that's why Hot Hardware has done a full-on round-up review, comparing some of the best GTX 680 and GTX 670 packages against each other and against the
