Intel Xeon E5-2678V3 2.5Ghz 30Mb 5GT/s ES 12-Core LGA2011-V3 CPU Processor, Haswell-EP Engenering Sample. Batch QG7W. Works fine with X99 motherboards. Max turbo with Hyper Threading enabled 12 cores / 24 treads is 3.3 Ghz. The processor has been runned in servers at stock speed so no overclocked item. Worldwide shipping with trackingnumber.
Intel Xeon E5-2678 v3 specifications General informationTypeCPU / MicroprocessorMarket segmentServerFamilyIntel Xeon E5-2600 v3Model number ?E5-2678 v3CPU part number

12 x 32 KB 8-way set associative data cachesLevel 2 cache size ?12 x 256 KB 8-way set associative cachesLevel 3 cache size30 MB 20-way set associative shared cacheMultiprocessingUp to 2 processorsFeatures
• MMX instructions
• SSE / Streaming SIMD Extensions
• SSE2 / Streaming SIMD Extensions 2
• SSE3 / Streaming SIMD Extensions 3
• SSSE3 / Supplemental Streaming SIMD Extensions 3
• SSE4 / SSE4.1 + SSE4.2 / Streaming SIMD Extensions 4 ?
• AES / Advanced Encryption Standard instructions
• AVX / Advanced Vector Extensions
• AVX2 / Advanced Vector Extensions 2.0
• BMI / BMI1 + BMI2 / Bit Manipulation instructions
• F16C / 16-bit Floating-Point conversion instructions
• FMA3 / 3-operand Fused Multiply-Add instructions
• EM64T / Extended Memory 64 technology / Intel 64 ?
• NX / XD / Execute disable bit ?
• HT / Hyper-Threading technology ?
• VT-x / Virtualization technology ?
• TBT 2.0 / Turbo Boost technology 2.0 ?
• TSX / Transactional Synchronization Extensions
Low power featuresEnhanced SpeedStep technology ?Integrated peripherals / componentsIntegrated graphicsNoneMemory controllerThe number of controllers: 2
Memory channels per controller: 2
Supported memory: DDR4Other peripherals
• Direct Media Interface 2.0
• Quick Path Interconnect v1.1 (2 links)
• PCI Express 3.0 interface (40 lanes)
Electrical / Thermal parametersThermal Design Power ?120 Watt [1]