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Square metal CPU with silver heat spreader and gold contact pads

Intel

Intel Core i5-7640X X-Series desktop processor 4.2 GHz 112W

SKU CH-CTRV-EPQNM

Four-core desktop processor running at 4.00 GHz base and 4.20 GHz turbo with 6 MB cache, quad-channel DDR4-2666 memory support, LGA 2066 socket and 112 W TDP for X299 chipset motherboards

  • 4 cores and 4 threads handle parallel workloads efficiently
  • Base 4.00 GHz with 4.20 GHz turbo boost for responsive performance
  • 6 MB cache reduces latency for frequent data access
  • Quad-channel DDR4-2666 support increases memory bandwidth
  • Unlocked multiplier on LGA2066 X299 platform enables overclocking headroom

The i5-7640X X-Series desktop processor

This Intel Core i5-7640X is a four-core, four-thread desktop CPU built for the LGA2066 platform. It runs at a 4.00 GHz base frequency with a single-core turbo up to 4.20 GHz and carries 6 MB of cache. The 112 W thermal design suits builders targeting high single-thread responsiveness on the X299 platform.

Socket and chipset compatibility check

The processor fits only motherboards using the LGA2066 socket and the Intel X299 chipset. Memory must be DDR4-2666 across four channels. Verify that your board BIOS supports this model before purchase; other chipsets and socket types will not work.

Suited to X299 builders needing four fast cores

Enthusiasts assembling a new X299 system or upgrading an existing board gain strong single-thread speed and quad-channel memory bandwidth. Users requiring more threads, integrated graphics, or a mainstream socket platform should consider a different processor line.

Highlights

  • 4 cores and 4 threads handle parallel workloads efficiently
  • Base 4.00 GHz with 4.20 GHz turbo boost for responsive performance
  • 6 MB cache reduces latency for frequent data access
  • Quad-channel DDR4-2666 support increases memory bandwidth
  • Unlocked multiplier on LGA2066 X299 platform enables overclocking headroom

Specifications

BrandIntel

Questions about this item

What comes with the Core i5-7640X and do I need a separate cooler?

The processor is sold as a tray or boxed CPU without a stock cooler, so an LGA2066-compatible cooler must be purchased separately.

Should I choose this 4.2 GHz quad-core or a higher-core X-Series chip for my X299 build?

This model offers 4 cores and 4 threads at 4.00–4.20 GHz with 6 MB cache; select it when single-thread speed matters more than core count.

What does the 4.2 GHz turbo mean once the chip is installed in an X299 motherboard with DDR4-2666 memory?

With a suitable cooler and quad-channel DDR4-2666 RAM, the processor can reach 4.20 GHz on active cores within its 112 W power envelope.

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