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Intel Core i7-5820K

Processor - 6-Core, 3.30GHz (140W), TurboBoost 3.60GHz, 15 MB of L3 cache, socket 2011-3, BOX (Haswell-E) cooler not included
incl. VAT £349.90
excl. VAT £291.58
Extended warranty + 1 year £28 Extended warranty + 1 year
Return products within 60 days £17.50 Possibility to return products within 60 days
In stock 4 pcs
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Warranty 36 months Code:  BO533l Product Number:  BX80648I75820K
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Intel Core i7-5820K £349.90 In stock 4 pcs
Rated by 65 users
5 57x
4 5x
3 1x
2 1x
1 1x
95 % Customers Recommend

Intel Core i7-5820K

The Intel Core i7-5820K is a six-core processor which offers extreme performance and is designed for professionals, demanding gamers and enthusiasts. Compared to the previous CPU generation, Haswell-E brings a significantly increased computing performance, more effecient power management, as well as a wide range of new technologies. Furthermore, the time-tested Hyper-Threading technology allows simultaneous processing of up to twelve threads. Along with an unlocked multiplier and the advantages of the 22nm manufacturing process, these attributes make this processor a truly uncompromising solution.

New Generation of Lighting-fast Cache 

Data access is extremely fast thanks to the L3 cache with the size of 15 MB, which ensures immediate response in all applications.

The Haswell-E CPU family also introduces a quad-channel memory controller with a phenomenal maximum transfer rate and a full-fledged quad-channel memory support for the frequency of 2133 MHz. Additionally, the efficient algorithms of the memory controller give you an incredibly low latency and guarantee high performance even in the most demanding applications.

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Intel Core i7

Intel Core i7

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Křemíková nádhera

Silicon glory

Automatic Overclocking

The second generation of the Turbo Boost technology boosts the clock frequency up to 3.6 GHz and enables the cores to exceed their stock frequency. The maximum frequency depends on the number of active cores, while the length of the overclocking period depends on the workload and operating environment. The upper frequency limit is determined by reaching threshold values of the four indicators (number of active cores, electric current drawn, power consumption, CPU temperature).

Key Features

  • Uncompromising computing power with great overclocking potential
  • Compatible with the LGA 2011-3 socket (the latest revision of LGA 2011)
  • Six cores operating at frequencies up to 3.6 GHz
  • Requires a high-quality cooler
This photo is from ColorBox off and does not therefore appear in it.
Processor series
Intel Core i7 Done!
Intel 2011-3 Done!
Processor code name
Haswell Done!
Number of processor cores
6 × Done!
Processor frequency
3.3 GHz (3.3 GHz) Done!
Max. frequency (OC)
3,600 MHz (3.6 GHz) Done!
Advanced parameters
Automatic Overclocking, Open multiplier, Virtualization, HyperThreading Done!
140 W Done!
Production technology
22 nm Done!
L2 cache
0.25 MB Done!
L3 cache
15 MB Done!
More Specifications

Intel Corporation is the world's largest manufacturer of semiconductor circuits and related components, powering a large share of the world's computers, devices, and machines with their powerful and reliable processors. One of the most established and successful companies to come out of Silicon Valley, they've been a driver of the technology revolution ever since.

Intel employs over 96,500 employees worldwide and is one of the biggest and richest companies in the world. For decades, their slogan was "Intel Inside"; however, they replaced with the more dynamic "Leap ahead" in 2005, signalling a renewed commitment to innovation.


This product is not an independently functional unit and may require professional installation.

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Specifications can be changed without notice. Images are for illustrative purposes only. Retail Price (MSRP) means the manufacturer's/supplier's suggested retail price.

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Rated by 65 users
5 57x
4 5x
3 1x
2 1x
1 1x
95 % Customers Recommend
Martin, Praha 5 - Jinonice 11/03/2016
Fast none
Tomáš, Praha 21/01/2015
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For clocking depends literally piece by piece, but the frequency to 4GHz CPU can handle even lower voltage of a decent temperature (+ good heatsink) with an overview.
Stable and fast for overclocking with a better cooler or below the much higher temperatures in the load
Firm, Praha 4 - Libuš 21/11/2014
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Cheapest CPU socket 2011-3 for Windows 7 after installing the run from the end of the bios about 15-20s (without a password) during low load temperature of about 35 ° C while playing the temperature to 50 ° C it yet I could not warm up properly loaded Price
Firm, Olešná 29/10/2014
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pile on rendrovanie 6 core excellent choice
Customer 21/05/2015
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Dissatisfied predsalen it's been a bit of a higher class of processors so poorly somehow disappoints
Mastering quick overclocking is overheated, even after overclocking but later, of course, be a well-cooling while no
Schau, s.r.o. 07/04/2015
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6 cores easily overclockable to 4.4GHz@1.308V (at this frequency rider steps on the heel and 5960x) the need for water cooling (for example Nepton 240 meters) higher price, but retaliates with
Customer 04/11/2014
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At that price prada
Performance nothing
Vojtěch, Sebranice u Litomyšle 17/01/2015
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5th generation speed overclocking possibility of a large 6-core radiator with good low temperature
Matej, Bratislava 31/10/2014
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Satisfies the rendering quite respectably. In clocked it's been a little worse. You will be happy and get 4,3Ghz to 1,220V - then you have a good chunk of the middle class. The first piece I had to return because 4,1Ghz to 1,222V and high temperatures. This gives tú frequency to 1,160V. But 4,7Ghz from it to 1,3V and certainly do not get a water cooling and so I do not :)
Price For unmatched performance 4,4Ghz can be equal to the reference eight-core 5960X - but watch for with 100W and higher consumption needs at least Noctua D15 optionally water cooling. Respectably care while newer inštrukciách on Prime95 It should be lucky enough to find one piece of the problem najšťastnejší piece in our market
Rocco22 12/09/2014
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It is the best!
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