Intel Core i7-7820X vs Intel Core i7-8700K

Last Updated & Fact Checked:  March 21, 2026

Are you trying to decide between the Intel Core i7-7820X and the Intel Core i7-8700K?

Product Versus will provide you with all the product details so you can quickly compare the facts to find which product is right for you – the Intel Core i7-7820X or the Intel Core i7-8700K – and find out exactly what the differences are.

Both the Intel Core i7-7820X and the Intel Core i7-8700K are quality products, so read on to find out which one is best for your needs!

Intel Core i7-7820X quick facts

Intel Core i7-8700K quick facts

Intel Core i7-7820X product details

Intel Core i7-8700K product details

Bestseller No. 1
Intel Core i7-8700K Desktop Processor 6 Cores up to 4.7GHz Turbo Unlocked LGA1151 300 Series 95W
  • Intel UHD Graphics 630
  • Compatible only with Motherboards based on Intel 300 Series Chipsets
  • 6 Cores / 12 Threads
  • 3.70 GHz up to 4.70 GHz Max Turbo Frequency / 12 MB Cache
  • Intel Optane Memory Supported
Bestseller No. 2
Intel Core i7-8700K Desktop Processor 6 Cores up to 4.7GHz Turbo Unlocked LGA1151 300 Series 95W (Renewed)
  • 6 Cores / 12 Threads
  • 4.70 GHz Max Turbo Frequency / 12 MB Cache; Memory Types: DDR4 2666; Bus Speed 8 GT/s DMI3
  • Compatible only with Motherboards based on Intel 300 Series Chipsets
  • Intel Optane Memory Supported
  • Intel UHD Graphics 630
Bestseller No. 3
Intel Core i7-8700 6 Cores 3.2GHz 12MB 8 GT/s 65W LGA 1151 CPU SR3QS (Renewed)
  • 6 Cores / 12 Threads. Intel UHD Graphics 630
  • 3.20 GHz up to 4.60 GHz Max Turbo Frequency / 12 MB Cache
  • Compatible only with Motherboards based on Intel 300 Series Chipsets
  • Intel Optane Memory Supported.Lithography:14 nm
  • Instruction set is 64-bit and instruction set extensions is intel sse4.1, intel sse4.2 and intel avx2. Features intel hyper threading technology

New products & alternatives to the Intel Core i7-7820X and the Intel Core i7-8700K

New
Intel® Core™ i7-12700KF, 12-Core Desktop Processor (8P+4E) up to 5.0GHz, LGA1700 125W 600 Series Chipset
  • Intel Core i7-12700KF 12th Gen Desktop Unlocked Processor without Graphics
  • Unlocked 12th Gen Intel Core Desktop Processors feature Intel Turbo Boost Max 3.0 technology and support PCIe 5.0 and 4.0, as well as DDR5 and DDR4 memory.
  • They are optimized to give gaming enthusiasts and professional creators high-performance overclocking capabilities to boost your computer.
  • Dedicated graphics card required.
  • Thermal solution is NOT included. Compatible with motherboards based on the 125W 600 series chipset.
New
Intel Core i7-14700F Desktop Processor 20 cores (8 P-cores + 12 E-cores) up to 5.4 GHz
  • 20 cores (8 P-cores + 12 E-cores) and 28 threads
  • Performance hybrid architecture integrates two core microarchitectures, prioritizing and distributing workloads to optimize performance
  • Up to 5.4 GHz unlocked. 33MB Cache
  • Compatible with Intel 600-series (with potential BIOS update) and 700-series chipset-based motherboards
  • PCIe 5.0 & 4.0 support. DDR4 and DDR5 Memory support. RM1 thermal solution included. Discrete graphics required.
New
Intel® Core™ i7-14700K New Gaming Desktop Processor 20 cores (8 P-cores + 12 E-cores) with Integrated Graphics - Unlocked
  • Game Without Compromise. Play harder and work smarter with Intel Core 14th Gen processors
  • 20 cores (8 P-cores plus 12 E-cores) and 28 threads. Integrated Intel UHD Graphics 770 included
  • Up to 5.6 GHz with Turbo Boost Max Technology 3.0 gives you smooth game play, high frame rates, and rapid responsiveness
  • Compatible with Intel 600-series (with potential BIOS update) or 700-series chipset-based motherboards
  • DDR4 and DDR5 platform support cuts your load times and gives you the space to run the most demanding games
New
Intel® Core™ i7-14700KF New Gaming Desktop Processor 20 cores (8 P-cores + 12 E-cores) - Unlocked
  • Game Without Compromise. Play harder and work smarter with Intel Core 14th Gen processors
  • 20 cores (8 P-cores plus 12 E-cores) and 28 threads. Discrete graphics required
  • Up to 5.6 GHz with Turbo Boost Max Technology 3.0 gives you smooth game play, high frame rates, and rapid responsiveness
  • Compatible with Intel 600-series (with potential BIOS update) or 700-series chipset-based motherboards
  • DDR4 and DDR5 platform support cuts your load times and gives you the space to run the most demanding games
New
Intel Core i7-13700K Gaming Desktop Processor 16 cores (8 P-cores + 8 E-cores) with Integrated Graphics - Unlocked
  • 13th Gen Intel Core processors offer revolutionary design for beyond real-world performance. From extreme multitasking, immersive streaming, and faster creating, do what you do
  • 16 cores (8 P-cores plus 8 E-cores) and 24 threads
  • Up to 5.4 GHz unlocked. 30M Cache
  • Integrated Intel UHD Graphics 770 included
  • Compatible with Intel 600 series (might need BIOS update) and 700 series chipset-based motherboards

Our conclusion on the Intel Core i7-7820X vs Intel Core i7-8700K

Both the Intel Core i7-7820X and the Intel Core i7-8700K are high quality products and we are sure you will be happy with either one. In the end it comes down to your budget and the value for money you are looking for.

Either way, the Intel Core i7-7820X and the Intel Core i7-8700K are both excellent products that will more than do their job!