Intel Core i5-6600K: specs and benchmarks

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Intel Core i5-6600K
Intel Core i5-6600K
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  • Interface
  • Core clock speed
  • Max video memory
  • Memory type
  • Memory clock speed
  • Maximum resolution
Year of release 2015
Performance 7.17
Processor Technical data and tests
Intel Core i5-6600K
Intel Core i5-6600K Intel Core i5-6600K

Summary

Intel started Intel Core i5-6600K sales 2 July 2015 at a recommended price of $242. This is Skylake architecture desktop processor primarily aimed at office systems. It has 4 cores and 4 threads, and is based on 14 nm manufacturing technology, with a max turbo frequency of 3900 MHz and an unlocked multiplier.

Compatibility-wise, this is Intel Socket 1151 processor with a TDP of 95 Watt and a maximum temperature of 72 °C. It supports DDR4 Dual-channel memory.

It provides poor benchmark performance at

7.17%

percent of a leader's which is AMD EPYC 7763.

General info

Of Core i5-6600K processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance rating860
Value for money15.34
Market segmentDesktop processor
SeriesIntel Core i5 (Desktop)
Architecture codenameSkylake
Release date2 July 2015 (6 years ago)
Launch price (MSRP)$242of 305 (Core i7-870)
Price now$127 (0.5x MSRP)of 16595 (Xeon E7-4850)
Value for money

To get the index we compare the characteristics of the processors and their cost, taking into account the cost of other processors.

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Technical specs

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores4 (Quad-Core)
Threads4
Base clock speed3.5 GHzof 4.7 (FX-9590)
Boost clock speed3.9 GHzof 5.3 (Xeon W-1390P)
L1 cache64K (per core)of 896 (Xeon W-2170B)
L2 cache256K (per core)of 12288 (Core 2 Quad Q9550)
L3 cache6 MB (shared)of 32 (Ryzen Threadripper 1998)
Chip lithography14 nmof 5 (Apple M1)
Die size122 mm2
Maximum case temperature (TCase)72 °Cof 105 (Core i5-5287U)
64 bit support+
Unlocked multiplier+

Compatibility

Information on Core i5-6600K compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1 (Uniprocessor)of 8 (Xeon Platinum 8280)
Socket1151
Thermal design power (TDP)95 Wattof 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Core i5-6600K. You'll probably need this information if you require some particular technology.

AES-NI+
AVX+
vPro+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

AMD-V+
VT-d+
VT-x+

Memory specs

Types, maximum amount and channel number of RAM supported by Core i5-6600K's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR4 Dual-channelof 4266 (Ryzen 9 5900HX)
Maximum memory size64 GBof 786 (Xeon E5-2670 v3)
Max memory channels2of 12 (Xeon Platinum 9221)
Maximum memory bandwidth34.134 GB/sof 281.6 (Xeon Platinum 9221)

Graphics specifications

General parameters of GPU integrated into Core i5-6600K.

Integrated graphics cardIntel HD Graphics 530

Peripherals

Specifications and connection types of supported peripherals.

PCIe version3.0
PCI Express lanes16of 128 (EPYC 7401P)

Benchmark performance

Single-core and multi-core benchmark results of Core i5-6600K. Overall benchmark performance is measured in points in 0-100 range, higher is better.


Overall score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i5-6600K 7.17
  • Cinebench 10 32-bit single-core
  • 3DMark06 CPU
  • Geekbench 3 32-bit multi-core
  • Geekbench 3 32-bit single-core
  • TrueCrypt AES
  • x264 encoding pass 2
  • x264 encoding pass 1
  • WinRAR 4.0
  • Cinebench 15 64-bit multi-core
  • Cinebench 15 64-bit single-core
  • Cinebench 11.5 64-bit multi-core
  • Cinebench 11.5 64-bit single-core
  • Cinebench 10 32-bit multi-core
  • Passmark
  • 3DMark Fire Strike Physics

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i5-6600K 6188

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i5-6600K 7413
i5-6600K 12270
i5-6600K 4080

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

i5-6600K 3.2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

i5-6600K 40

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

i5-6600K 196

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

i5-6600K 3643

Cinebench Release 15 Multi Core (sometimes called Multi-Thread) is a variant of Cinebench R15 which uses all the processor threads.

i5-6600K 602

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

i5-6600K 166

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i5-6600K 7

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i5-6600K 1.88

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i5-6600K 21324

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i5-6600K 6289
i5-6600K 7370

Mining hashrates

Cryptocurrency mining performance of Core i5-6600K. Usually measured in megahashes per second.

Bitcoin / BTC (SHA256) 47 Mh/s  

Game benchmarks

Let's see how good Core i5-6600K is for a gaming PC, compared with system requirements of some popular titles. Remember that sometimes official hardware requirements may reflect real performance inaccurately.

Relative perfomance

Overall Core i5-6600K performance compared to nearest competitors among desktop CPUs.


AMD equivalent

We believe that the nearest equivalent to Core i5-6600K from AMD is Ryzen 3 1200, which is faster by 2% and higher by 18 positions in our rating.

AMD Ryzen 3 1200 Ryzen 3 1200
Compare

Here are some closest AMD rivals to Core i5-6600K:

AMD FX-8120 104.74
Intel Core i5-6600K 100
AMD FX-8370 97.35
AMD FX-9370 94.98
AMD FX-8350 94.28

Similar processors

Here is our recommendation of several processors that are more or less close in performance to the one reviewed.

Intel Core i7-4790T Core i7 4790T
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Intel Core i5-7500 Core i5 7500
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AMD Ryzen 3 1200 Ryzen 3 1200
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Intel Core i5-7600T Core i5 7600T
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Intel Core i3-8300 Core i3 8300
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Intel Core i3-8100 Core i3 8100
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User rating

Here is the rating given to the reviewed processor by our users. Let others know your opinion by rating it yourself.


226 ratings
Intel Core i5-6600K
Intel Core i5-6600K

Advices and comments

Here you can ask a question about Core i5-6600K, agree or disagree with our judgements, or report an error or mismatch.