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Intel BX80662I56600K Core i5-6600K LGA1151 3.5 - 3.9 GHz CPU

4.8 out of 5 stars 122 customer reviews
| 79 answered questions

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Frequently bought together

  • Intel BX80662I56600K Core i5-6600K LGA1151 3.5 - 3.9 GHz CPU
  • +
  • Cooler Master Hyper 212 Evo Air CPU Cooler "RR-212E-16PK-R1, 4 x Heatpipe, 1x 120mm PWM Fan, Intel/AMD"
  • +
  • Corsair CMK16GX4M2B3000C15 Vengeance LPX 16 GB (2 x 8 GB) DDR4 3000 MHz CL15 XMP 2.0 High Performance Desktop Memory Kit - Black
Total price: £347.94
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Product information

Technical Details
BrandIntel
Item Weight50 g
Product Dimensions9 x 9 x 6 cm
Item model numberBX80662I56600K
Seriesi5-6600K
ColorSilver
Processor BrandINTEL
Processor SocketLGA1151
Processor Count4
Computer Memory TypeDDR3 SDRAM
Maximum Memory Supported65536 MB
Wattage91 watts
  
Additional Information
ASINB010T6DCBS
Best Sellers Rank 1,363 in Computers (See top 100)
Shipping Weight50 g
Date First Available8 Aug. 2015
  
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Product description

Product Description

Take control with the 6th Generation Intel Core processors codenamed "Skylake-S". The i5 6600K is the flagship processor of the Skylake-S line-up that features exceptional performance that is increased by up to 22% and offers 6x faster storage bandwidth for quicker media access, all this means for an all-round more responsive PC. The 'K' prefix shows that this CPU is Unlocked and has overclocking enabled this is great news for extreme gamers and enthusiasts. Improved overclocking is supported on the 6700K when in conjunction with Z170 chipsets only, it uses the BCLK (base clock) overclocking feature

Box Contains

1 x BX80662I56600K
1xuser manual


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Customer Reviews

4.8 out of 5 stars
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Top Customer Reviews

Verified Purchase
I had a difficult decision to make: i5 or i7.

The obvious choice would be RAW POWER and going for the i7, but in reality, "bang for buck" just isn't the same. The i5 6600k, especially with superb overclocking potential was the most logical of the two candidates, particularly for a gaming build. Straight out the box this is one fast processor and I had the pleasure (for lack of a better word!) of using the integrated Intel HD530 for a day before my GPU came. It's not actually that bad... It managed World of Warcraft on low/mid at a steady FPS which was passable for a processor! Of course I would always recommend a dedicated GPU but if you, like me, need to wait on postage, you can definitely build a system with just the processor for a day or two of light gaming.

Installation was a breeze, just need to be delicate like all processor installations.

Skylake "K" processors such as this one, do not include the Intel Stock fan, so bare in mind you will need to look at your own cooler. Personally I combo'd this with a Hyper 212 Evo, and it stays super cool.

Hope that helps, have fun and let me know if I can answer any questions :)
4 Comments 24 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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By PB TOP 100 REVIEWER on 22 April 2016
Finally had a chance to do a build with the lovely 6600k. As like most recent intel chips the i5 k chip is similar in characteristics as its bigger brother i7 chip without the hyper threading and a slower initial out the box speed and tiny bit small cache, 6mb vs 8mb on the 6700k. As they however share the same specs mostly, the i5 can be overclocked as high as the i7 no issue. As a result its low price yet being a powerhouse means it's ideal for a majority of people, in particular games which do not fully utilize hyperthreading and in the event the do, the increase in performance is marginal at best.

Packaging
***********

In regards to the lovely 6600k itself. It arrived in a very colorful box, much like its bigger brother the 6700k. You notice from the onset the box is somewhat lighter and this is a result of intel removing the stock cooler for the CPU. As a result an aftermarket cooler is required, but generally this is no big deal as the stock cooler that came with the older CPU’s and locked CPU’s can run fairly warm and loud. For our build the Krakan X61 was used.

Aside from that we got a small manual and a sticker.

Use
****

Of course the performance is the most crucial aspect and for that the CPU absolutely flies. For the motherboard we had it paired with the ASUS Maximus hero Z170 motherboard and a pair of Corsair DDR4 3200 Mhz sticks of ram and the CPU absolutely flew. Manually overclocking we dialed in a stable overclock of 4.7 Ghz @ 1.35 volts, so in all the chip performs nicely.

Out of curiosity as I own a 4690k, we compared the two systems at 4.6 Ghz in some titles: Crysis 3, Shadow of Mordor, Tomb Raider, Fary Cry 4, GTA 5 and Witcher 3.
Read more ›
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Verified Purchase
Installed this in my almost new build of:

ASUS Z170 Pro Gaming
Corsair Vengeance 16gb 3200Mhz CL18(I think, can never remember timings)
Sapphire R9 290 Tri-X oc (already had)
Coolermaster Hyper 212 Evo (how unoriginal)

Easily the best processor I have ever had (I came from AMD, what do you expec, to be honest they are great value), easily stable overclock to 4.6Ghz with minimal settings tweaks, just CPU core voltage which is around 1.36 V - i'm sure I could get it lower, but I haven't had the time to run AIDA64 yet on these voltages.
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Verified Purchase
This is proving to be one beast of a processor. It's powerful, cool, and energy efficient. The 6600K is worth it if you're going to overclock; I've currently got mine sitting happy at 4.5gHz, and it barely tops 50°c when stressed out. It's worth bearing in mind this doesn't come with a stock cooler, but if you're going to overclock, you wouldn't want the stock one - unless you were planning to fry some bacon and eggs on it. In some respects the price hike from the 6600 to the 6600K is pretty large, but consider this: my 6600K now outperforms an (admittedly stock) i7 6700K, and I reckon it still has an extra 100-200 mHz left in it if I'm brave enough to give the voltage another boost. Can't say fairer than that!
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The i5 line has continued to offer the best value for high level PC Gaming. The 6600k offers performance that shows marginal decreases in performance vs i7 offerings. Save yourself some $$$ and stick with the i5. This is now the 3rd i5 I have built (2600k, 4690k) and the 2600k even today still is capable of running systems delivering maxed settings in modern titles like GTAV & BF1. So do not fear a bottleneck or performance hit by going with a i5 instead of a i7. Make a smart consumer decision and go with the i5.
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At first i wasnt impressed with this cpu.
It lacked the 6700k performance and cost double the 6320 - which could batter it out of the box. (3.3 v 3.9)

But... as i overclocked a couple of things changed my mind.
Its single core performance could now match the i7 and it didnt need the voltage and as such ran much cooler. Mine runs on a cheap evo copy @4.45ghz and stays at 55c in a hot room while stressed. My I7 on water cooling is 75c in the same situation.
Multi core the I7 blows it away, although that wont be seen in games. Something i noticed was games might run the 4 cores at 80% where my hyperthreaded I7 would sit at 60% on all the threads. So its really only video editing, encoding etc that i7 stands clear.

For a gamer who is happy at mid 4 ghz and has the extra cash to spend over the i3 this cpu is perfect.
But its multi core performance isnt barnstorming. Hence dropping a star.

for overclocking i left mine to asrock presets and added 1 on the b/c. The highest preset failed so im thinking the chip doesnt like going beyond 4.4-4.5. Given the voltage remained so low at at 4.44 i didnt bother pushing further.
While quite good for a modern cpu - the anciant 2500k would go way higher, easier. Thats a 5 star cpu (in its day)
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