Leaked specs expose next-gen Xeon lineup
 

These details aren't confirmed, but they do look plausible. Highlights? Check out the Xeon E5-2687W, which runs at 3.1GHz and boasts a hefty 150W thermal envelope. Intel's 5000-series Xeon line (which the E5s look set to replace) doesn't have anything with a TDP greater than 130W. That said, the 5000-series family tops out at six cores, three memory channels, and 12MB of L3 cache, while the E5s scale up to eight cores, four channels, and 20MB of cache.

At the very least, Sandy Bridge E appears to have a greater thirst for wattage than its Gulftown predecessor. Take the E5-2667, for example. It has the same core count and clock speed as the existing Xeon X5670. However, the X5670 has a 95W thermal envelope, while the E5-2667 has a 130W TDP. Thankfully, the E5 lineup has a number of low-power options, including an eight-core model with a 70W TDP rating.

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