Improved per-clock performance and higher achievable frequencies are sure to put Intel’s latest K-Series CPUs on top of many builders’ whish lists, but they’ll still need a new socket to put it in. We test nine enthusiast-oriented LGA-1155 motherboards.

Before you buy a new Sandy Bridge-based platform, check out the recent news about Intel's recall of its Cougar Point chipsets.

Right now, anyone who just bought anything with an LGA 1156 interface is probably kicking themselves. Intel’s new Core i3/i5/i7-2000-series processors have the highest per clock, per-core performance we’ve ever seen. And better yet, the unlocked K-series models support the highest air-cooled overclocks we’ve ever seen. Within “normal” cooling limits, these processors even stand a chance of outgunning Intel’s ultra-expensive six-core chips, and the performance picture isn't even a contest in games that cannot use more than four cores.

The need for a new motherboard might be a slap in the face for anyone who sank significant cash into an LGA 1156-based platform thinking it might be upgradable for a while. But those who chose to wait, holding on to an older Core 2 Quad or a slower Phenom II, did so for good reason.

Nine products will make this a long review, so rather than discuss those things already covered by Chris and Patrick, let's jump straight to a features comparison.