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Intel Core i9-7940X 14-core LGA 2066 processor in retail box

Intel

Intel Core i9-7940X 14-Core 3.1 GHz LGA 2066 165W CPU accessory

SKU CH-AW68-NQXQX

A 14-core, 28-thread desktop processor with a 3.1 GHz base clock, up to 4.4 GHz turbo, 19.25 MB L3 cache, 44 PCIe 3.0 lanes and a 165 W TDP for LGA 2066 platforms

  • 14 cores and 28 threads handle heavy multi-threaded workloads
  • Base clock 3.1 GHz with Turbo Boost up to 4.4 GHz for responsive performance
  • Unlocked multiplier allows overclocking on compatible X299 motherboards
  • 44 PCI Express 3.0 lanes support multiple GPUs and fast storage
  • Quad-channel DDR4-2666 memory support increases bandwidth for demanding tasks

Designed for extreme content creation

The Intel Core i9-7940X is a 14-core, 28-thread desktop processor built on the LGA 2066 platform. It targets creators who render 4K video, run complex simulations or manage heavy multitasking workloads. A base clock of 3.1 GHz scales to 4.4 GHz with Intel Turbo Boost Max 3.0 Technology. The 165 W TDP demands robust cooling.

Unlocked multiplier and quad-channel memory

The unlocked design allows manual frequency tuning for users comfortable with overclocking. Quad-channel DDR4-2666 support feeds all 14 cores with up to 44 PCI Express 3.0 lanes for high-bandwidth add-in cards. 19.25 MB of L3 cache reduces latency on large datasets. Intel Optane technology compatibility is listed for faster storage caching.

LGA 2066 socket requires X299 motherboard

Installation follows standard LGA 2066 procedures: align the processor triangle, lower the retention lever and secure the cooler. The 165 W thermal output makes a high-capacity cooler essential; insufficient cooling causes immediate throttling. Builders must verify motherboard BIOS supports this specific stepping before first boot. Memory must be installed in matched quad-channel kits for rated performance. Buyers who need integrated graphics or a lower-power platform should consider other options.

Highlights

  • 14 cores and 28 threads handle heavy multi-threaded workloads
  • Base clock 3.1 GHz with Turbo Boost up to 4.4 GHz for responsive performance
  • Unlocked multiplier allows overclocking on compatible X299 motherboards
  • 44 PCI Express 3.0 lanes support multiple GPUs and fast storage
  • Quad-channel DDR4-2666 memory support increases bandwidth for demanding tasks

Specifications

No published specifications for this item yet.

Questions about this item

Will the thermal paste on the Core i9-7940X need replacing after long daily use?

The processor ships new without pre-applied paste, so you apply your own compound during installation and refresh it whenever you reseat the cooler.

What limit appears first when all 14 cores run at 4.3 GHz Turbo Boost 2.0 for extended periods?

The 165 W TDP ceiling is reached before any other constraint, so sustained all-core loads will throttle to stay within that power envelope.

How loud and hot does the system get when the 165 W chip runs all day under full load?

Noise and temperature depend entirely on the cooler you choose; the CPU itself has no fan, so a capable air or liquid cooler keeps heat and sound manageable.

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