Intel's plans for an upgraded Sandy Bridge E processor may have been validated after an auction on eBay showed an unreleased model. An engineering sample of an eight-core chip arrived on sale this week and was described as a Core i7 using the Sandy Bridge architecture but designed for the new Patsburg (incorrectly labeled "Platsburg") platform, which represents Intel's unreleased X79 chipset. An X79 mainboard is targeted at high-end users and enthusiasts with an external clock speed generator that would let users overclock the processor without affecting other parts
