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Intel

Intel Core i7-7820X Extreme Edition desktop processor

SKU CH-CMFQ-N11BD

Eight-core desktop processor with 16 threads, 3.6 GHz base clock, 4.3 GHz max turbo, 11 MB L3 cache and LGA 2066 socket

  • Product nameCore i7-7820X
  • CPU cores8-Core
  • CPU socketLGA 2066
  • Maximum turbo clock4.3 GHz
  • TDP rating140 W
  • Processor classDesktop
  • 8 cores and 16 threads handle heavy multitasking
  • 6 GHz base clock with 4.3 GHz max turbo for responsive performance
  • 11 MB L3 cache reduces data latency
  • LGA 2066 socket fits Intel X299 chipset motherboards
  • 14 nm manufacturing with 64-bit instruction set

Core i7-7820X 8-core processor for LGA 2066

The Intel Core i7-7820X is an 8-core, 16-thread desktop CPU built on the Skylake X architecture for the LGA 2066 platform. It runs at a 3.6 GHz base frequency and reaches 4.3 GHz with Intel Turbo Boost Max 3.0 technology. The processor targets content creators and enthusiasts who need high single-thread speed alongside multi-thread throughput. It supports quad-channel DDR4-2666 memory and works with Intel X299 chipset motherboards.

140 W TDP requires capable cooling for sustained

With a 140 W thermal design power, the chip demands a robust air or liquid cooler to maintain 3.6 GHz under continuous multi-core work. Turbo Boost Max 3.0 directs lighter workloads to the fastest cores, raising clocks to 4.3 GHz while keeping power draw lower during burst activity. The 14 nm process and 11 MB L3 cache help efficiency, but sustained all-core loads will push thermals toward the limit without adequate airflow. No heatsink or fan is included in the box.

Upgrades quad-core X99 or early X299 CPUs for

Moving from a 4-core or 6-core X99 processor adds eight more threads and quad-channel memory bandwidth, cutting render and compile times for video, 3D and code workloads. The jump is worthwhile when projects exceed the thread count or cache capacity of older parts and the motherboard supports LGA 2066. Builders staying on X99 or using mainstream sockets gain nothing; the platform change requires a new board and DDR4 memory kit.

How it compares

Measured against everything we stock in Desktop Processors, at today’s prices. Recalculated every night.

Price $87.99
Cheaper than about 71% of the 494 comparable items (median $149.99).
CPU cores 8-Core
Typical for this category: the median of 271 items is 8.
Maximum turbo clock 4.3 GHz
Lower than about 75% of the 246 comparable items (median 4.7 GHz).

New to this? Buying a processor with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameIntel
Product lineCore i7 X-Series
Model nameBX80673I77820X
Product nameCore i7-7820X
Performance
Working frequency3.6 GHz
Bus speed8 GT/s
Processor
CPU cores8-Core
CPU socketLGA 2066
Maximum turbo clock4.3 GHz
TDP rating140 W
Processor classDesktop
Processor codenameSkylake X
CPU threads16-Threads
Level 2 cache8 MB
Level 3 cache11 MB
Process node14 nm
CPU instruction set64-Bit
Hyper-ThreadingYes
Virtualization supportYes
Max PCIe lanes28
Memory
Channel configuration4
Ports & slots
PCIe generation3.0
In the box
Included coolerNot included - Processor Only

Questions about this item

How is the LGA 2066 processor installed and which step is most often missed?

Align the notches on the CPU with the socket keys, lower it gently without pressure, then close the retention lever. The step most often missed is applying thermal paste before mounting the cooler, because this boxed CPU does not ship with a heatsink or fan.

What maintenance or replacement will the Core i7-7820X need later?

The processor itself has no serviceable parts. Maintenance consists of periodically cleaning the cooler fins and replacing the thermal interface material every few years to keep the 140 W TDP under control.

What limit appears first under sustained load on the 8-core 3.6 GHz chip?

The 140 W thermal design power is the first limit reached. Extended all-core workloads will push the package to its thermal ceiling before the 4.3 GHz max turbo frequency can be maintained across all 16 threads.

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