18M Cache, 1.86 GHz, 4.80 GT/s Intel QPI EssentialsStatusLaunchedLaunch DateQ2'11Processor NumberE7-4807# of Cores6# ... .86 GHzIntel® Smart Cache18 MBBus/Core Ratio14Intel® QPI Speed4.8 GT/sInstruction Set64-bitInstruction Set ExtensionsSSE4.1/4.2Embedded Options AvailableNoLithography32 ... Processor E7-4807 18M Cache, 1.86 GHz, 4.80 GT/s Intel QPI