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 Radeon HD 7970 GHz Edition. If you prefer your morning news fresh and unspoilered, jump straight to the source link below. Or, if you just want the gist of it, click Read More.