Intel Core i5-6400 vs Intel Core i5-6600K

Last Updated & Fact Checked:  April 19, 2026

Are you trying to decide between the Intel Core i5-6400 and the Intel Core i5-6600K?

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 i5-6400 or the Intel Core i5-6600K – and find out exactly what the differences are.

Both the Intel Core i5-6400 and the Intel Core i5-6600K are quality products, so read on to find out which one is best for your needs!

Intel Core i5-6400 quick facts

Intel Core i5-6600K quick facts

Intel Core i5-6400 product details

Bestseller No. 1
Intel Boxed Core I5-6400 FC-LGA14C 2.70 Ghz 6 M Processor Cache 4 LGA 1155 BX80662I56400
  • A new level of intelligent performance
  • Do more at once
  • Speedy content creation
  • Get your game on
Bestseller No. 2
Intel Core i5 6500 3.20 GHz Quad Core Skylake Desktop Processor, Socket LGA 1151, 6MB Cache [BX80662I56500]
  • A new level of intelligent performance
  • Do more at once
  • Speedy content creation
  • Get your game on
Bestseller No. 3
Intel Core i5-7500 LGA 1151 7th Gen Core Desktop Processor (Renewed)
  • Supports up to 64GB of DDR4-2400 RAM
  • Quad Core Processor
  • up to 3.8 GHZ Turbo Frequency
  • 3.40 GHz up to 3.80 GHz Max Turbo Frequency / 6 MB Cache

Intel Core i5-6600K product details

Bestseller No. 1
Intel Core i5-6600K Skylake LGA 1151, BX80662I56600K
  • Brand New in box. The product ships with all relevant accessories
Bestseller No. 2
Intel Core i5 6600K 3.50 GHz Quad Core Skylake Desktop Processor, Socket LGA 1151, 6MB Cache (BX80662I56600K) (Renewed)
  • LGA 1151
  • Unlocked Processor
  • DDR4 & DDR3L Support
  • Display Resolution up to 4096x2304
  • Intel Turbo Boost Technology
Bestseller No. 3
Intel Core i5-7500 LGA 1151 7th Gen Core Desktop Processor (Renewed)
  • Supports up to 64GB of DDR4-2400 RAM
  • Quad Core Processor
  • up to 3.8 GHZ Turbo Frequency
  • 3.40 GHz up to 3.80 GHz Max Turbo Frequency / 6 MB Cache

New products & alternatives to the Intel Core i5-6400 and the Intel Core i5-6600K

New
Intel® Core™ i5-14500 Desktop Processor, 14 Cores (6 P-Cores + 8 E-Cores) up to 5 GHz
  • Intel Core i5 Desktop Processors (14th Gen) support PCIe 5.0 and 4.0 technologies, as well as DDR5 and DDR4 memory.
  • They are optimized for gaming and productivity, and deliver high performance.
  • Compatible with Intel 700 series and Intel 600 series chipset based motherboards.
  • Processor base power 65 W.
  • Intel Laminar RM1 included in the box.
New
Intel Core i5-14400F LGA 1700 Processor BX8071514400F
  • Intel Core i5-14400F LGA 1700 Processor BX8071514400F
New
Intel CORE I5-14400 Processor (TURBE UP to 4.7GHZ) 20MB LGA1700 14TH Generation BX8071514400
  • Intel Core i5 14400: With 10 cores and 16 threads, this processor reaches up to 4.7GHz in turbo mode. Ideal for multitasking and entertaining.
New
CPU INTEL I5-12400 BOX SKT1700 *12 GEN.
  • Socket: 1700
  • L3 cache: 18 MB
  • Power consumption: 65 watts
  • Core: Alder Lake
  • Graphics unit: Intel UHD Graphics 730

Our conclusion on the Intel Core i5-6400 vs Intel Core i5-6600K

Both the Intel Core i5-6400 and the Intel Core i5-6600K 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 i5-6400 and the Intel Core i5-6600K are both excellent products that will more than do their job!