Intel Core i5 Skylake i5-6400 BOX (BX80662I56400)
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Four physical cores. Moderate heat dissipation.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Intel 2026 - new arrivals, bestsellers, and the most relevant models Intel.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Intel 2026 - new arrivals, bestsellers, and the most relevant models Intel.
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Intel Core i5-6400 - Core i5 6th Gen Skylake Quad-Core 2.7 GHz LGA 1151 65W Intel HD Graphics 530 Desktop Processor - BX8066 | $50.87 |  | |||
Intel SR2BY Intel Core I5-6400 Quad-Core 2.70GHz 8.00GT/s DMI 6MB L3 Cache Socket LGA1151 Processor Refurbished SR2BY | $109.70 |  | |||
Intel SR2BY | Core I5-6400 Quad-Core 2.70GHz 8.00GT/s DMI 6MB L3 Cache Socket LGA1151 Processor Refurbished SR2BY | $119.67 |  | |||
Intel SR2L7 Intel Core I5-6400 Quad-Core 2.70GHz 8.00GT/s DMI 6MB L3 Cache Socket LGA1151 Processor Refurbished SR2L7 | $163.85 | | |||
Intel SR2L7 | Core I5-6400 Quad-Core 2.70GHz 8.00GT/s DMI 6MB L3 Cache Socket LGA1151 Processor Refurbished SR2L7 | $172.16 | | |||
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Model overview based on user reviews
The Intel Core i5 Skylake processors are praised for their high performance and energy efficiency, making them a strong choice for both gaming and office tasks. Users appreciate the compatibility with many motherboards and the processor's ability to maintain stability and reliability over long-term use. The integrated Intel HD Graphics 530 and the option for models with a free multiplier add to its versatility. While some users note the thermal gum under the lid as a minor drawback, the processor's ability to be easily overclocked to enhance performance is a significant advantage. Overall, the Intel Core i5 Skylake remains a relevant and powerful option even years after its release, offering excellent value for those looking to upgrade their systems.
Pros
Cons
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compatibility and stability The processor works very stably with most motherboards on the Intel 100 series chipset. I had no issues with BIOS settings or drivers. This ensures peace of mind and reliability in long-term operation. High performance for the mid-range class. Low heat emission. Energy efficiency. Compatibility with many motherboards. Works well for office tasks and light gaming. -  Oleg: use Intel i5-6500 BOX more than year |
i5-6600K. Easily overclocked to 4.5 GHz, the hottest core in LinX at that point is 90 degrees. Cooler Noctua NH-D14. Motherboard - Asrock z170 extreme4. Memory - built-in profile 2666 MHz. Paired with gtx980 (also overclocked) excellent performance in games. I'm satisfied, I can put the upgrade topic to rest for 3-4 years. Productive, relatively cool, DDR4 memory. Thermal gum under the lid. If you get bored - I'll scalp you :))) use Intel Core i5 Skylake month or more i recommend it should buy |
Still on sale in 2021! Great per-core performance, runs cool, and it can be overclocked (on my mobo it hit 4.5, but some enthusiasts have pushed it to 4.9!). No streams  Aleksandr: use Intel i5-6600K BOX more than year |
3 out of 6 user review(s) shown
3 more user review(s)
Intel Core i5 Skylake configurations
| Price for Intel Core i5 Skylake | ||||
|---|---|---|---|---|
 | Intel Core i5 Skylake i5-6300U OEM | from $478.73 | 1 offer | |
| Intel Core i5 Skylake i5-6400 BOX | from $50.87 | 9 offers | |
| Intel Core i5 Skylake i5-6400 OEM | from $324.19 | 2 offers | |
| Intel Core i5 Skylake i5-6400T BOX | from $218.64 | 8 offers | |
| Intel Core i5 Skylake i5-6400T OEM | from $218.64 | 2 offers | |
| Intel Core i5 Skylake i5-6402P BOX | from $142.00 | 9 offers | |
| Intel Core i5 Skylake i5-6402P OEM | from $180.85 | 2 offers | |
| Intel Core i5 Skylake i5-6500 BOX | from $60.00 | 15 offers | |
| Intel Core i5 Skylake i5-6500 OEM | from $84.50 | 3 offers | |
| Intel Core i5 Skylake i5-6500T BOX | from $75.52 | 12 offers | |
| Intel Core i5 Skylake i5-6500T OEM | from $218.00 | 5 offers | |
| Intel Core i5 Skylake i5-6600 BOX | from $196.77 | 9 offers | |
| Intel Core i5 Skylake i5-6600 OEM | from $199.42 | 2 offers | |
| Intel Core i5 Skylake i5-6600K BOX | from $199.99 | 9 offers | |
| Intel Core i5 Skylake i5-6600K OEM | from $73.87 | 3 offers | |
| Intel Core i5 Skylake i5-6600T BOX | from $168.41 | 8 offers | |
| Intel Core i5 Skylake i5-6600T OEM | from $191.02 | 2 offers | |
Video reviews
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Middle class
Intel Core i5-6400 is the youngest and, accordingly, the most affordable model of the Skylake generation Core i5 processor series. The i5-6400 at 2.7 GHz costs an average of $190, while the i5-6500 at 3.3 GHz costs $230. For this amount, in addition to the processor itself, you get a cooler, albeit not silent, but quite sufficient to remove 65 W of heat.
Four means four
All desktop Core i5 models are true quad-cores, while the younger Core i3s have only two physical cores and two more virtual cores. Therefore, the Core i5 is about one and a half times faster than the Core i3. Most of all, the difference is felt in professional applications and processor-intensive games such as Battlefield 4, Arma 3, Assassin's Creed Syndicate, etc.
Auto acceleration in addition
The nominal frequency of the Core i5-6400 is relatively low - 2.7 GHz, but the technology of guaranteed automatic overclocking Turbo Boost comes to the rescue. So, with a load on all cores, the processor accelerates to 3.1 GHz, and with a load of only one core - up to 3.3 GHz. As a result, we can recommend the i5-6400 for building an advanced gaming PC with a Radeon RX 480, GeForce GTX 1060 and more powerful graphics card.
We recommendCompare using chart →
Intel LGA 1151, cores 4, threads 4, 3 GHz, TurboBoost 3.5 GHz, process technology 14 nm, HD Graphics 630, integrated graphics, TDP 65 W, memory RAM: maximum 64 GB, DDR4 2400 MHz
Intel LGA 1151, cores 4, threads 4, 3.2 GHz, TurboBoost 3.6 GHz, process technology 14 nm, HD Graphics 530, integrated graphics, TDP 65 W, memory RAM: maximum 64 GB, DDR4 2133 MHz
Intel LGA 1151, cores 2, threads 2, 3 GHz, process technology 14 nm, HD Graphics 610, integrated graphics, TDP 51 W, memory RAM: maximum 64 GB, DDR4 2133 MHz
Intel LGA 1151, cores 2, threads 2, 2.9 GHz, process technology 14 nm, HD Graphics 510, integrated graphics, TDP 35 W, memory RAM: maximum 64 GB, DDR4 2133 MHz
Intel LGA 1151, cores 2, threads 2, 2.6 GHz, process technology 14 nm, HD Graphics 510, integrated graphics, TDP 35 W, memory RAM: maximum 64 GB, DDR4 2133 MHz
Intel LGA 1155, 65 / 77 W, cores 4 , threads 8 threads, process technology 22 nm, 3.1 - 3.5 GHz, TurboBoost 3.9 GHz, maximum 32 GB, HD Graphics 4000
Intel LGA 1150, 88 W, cores 4 , threads 8 threads, process technology 22 nm, 4 GHz, TurboBoost 4.4 GHz, maximum 32 GB, HD Graphics 4600
Intel LGA 2011 v3, 50 - 160 W, cores 4 - 22 , threads 6 - 44 threads, process technology 14 nm, 1.6 - 3.7 GHz, maximum 1500 / 1536 GB
Intel LGA 1151, 35 - 91 W, cores 4 , threads 8 threads, process technology 14 nm, 2.4 - 4 GHz, TurboBoost 3.4 - 4.2 GHz, maximum 64 GB, DDR4 2133 MHz, HD Graphics 530
Intel LGA 1200, 65 / 125 W, cores 8 , threads 16 threads, process technology 14 nm, 2.5 / 3.6 GHz, TurboBoost 4.9 / 5 GHz, maximum 128 GB, DDR4 3200 MHz, - / UHD Graphics 750
Intel LGA 1150, 35 - 84 W, cores 4 , threads 8 threads, process technology 22 nm, 2 - 3.6 GHz, TurboBoost 3 - 4 GHz, maximum 32 GB, HD Graphics 4600
AMD AM4, 65 W, cores 8 , threads 16 threads, process technology 7 nm, 3.7 / 3.8 GHz, TurboBoost 4.6 GHz, DDR4 3200 MHz, - / Radeon Vega 8