Intel Core i7-6800K: specs and benchmarks

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Summary

Intel started Core i7-6800K sales 31 May 2016 at a recommended price of $345. This is a Broadwell-E architecture desktop processor primarily aimed at office systems. It has 6 cores and 12 threads, and is based on 14 nm manufacturing technology, with a max turbo frequency of 3800 MHz and an unlocked multiplier.

Compatibility-wise, this is FCLGA2011 processor with a TDP of 140 Watt and a maximum temperature of 72 °C. It supports DDR4 memory.

It provides poor benchmark performance at 7.03% of a leader's which is AMD Ryzen Threadripper PRO 7995WX.

Ryzen Threadripper PRO 7995WXRyzen ThreadripperPRO 7995WX
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General info

Core i7-6800K processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance ranking838
Value for money7.65
Market segmentDesktop processor
Architecture codenameBroadwell-E (2016)
Release date31 May 2016 (7 years old)
Launch price (MSRP)$345of 305 (Core i7-870)
Current price$169 (0.5x MSRP)of 17802 (Threadripper PRO 7995WX)
Value for money

Performance per price, higher is better.

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 cores6 (Hexa-Core)
Threads12
Base clock speed3.4 GHzof 4.7 (FX-9590)
Boost clock speed3.8 GHzof 6 (Core i9-13900KS)
L1 cache32 KB (per core)of 7475.2 (Apple M2 Pro 10-Core)
L2 cache256 KB (per core)of 36864 (Apple M2 Max)
L3 cache15 MB (shared)of 768 (EPYC 7373X)
Chip lithography14 nmof 4 (Ryzen 9 7940HS)
Maximum core temperature67°of 110 (Atom x7-E3950)
Maximum case temperature (TCase)72 °Cof 105 (Core i7-5950HQ)
64 bit support+
Windows 11 compatibility-
Unlocked multiplier+

Compatibility

Information on Core i7-6800K 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 configuration1of 8 (Opteron 842)
SocketFCLGA2011
Power consumption (TDP)140 Wattof 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Core i7-6800K. You'll probably need this information if you require some particular technology.

AES-NI+
AVX+
Enhanced SpeedStep (EIST)+
Enhanced SpeedStep (EIST)+
Turbo Boost Technology2.0
Hyper-Threading Technology+
Idle States+
Smart Response+
Turbo Boost Max 3.0+

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT+
EDB+

Virtualization technologies

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

VT-d+
VT-x+
EPT+

Memory specs

Types, maximum amount and channel number of RAM supported by Core i7-6800K's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR4of 5600 (Ryzen 9 7940HS)
Maximum memory size128 GBof 786 (Xeon E5-2670 v3)
Max memory channels4of 12 (Xeon Platinum 9221)
ECC memory support-

Peripherals

Specifications and connection types of supported peripherals.

PCIe version3.0of 5 (Core i9-12900K)
PCI Express lanes28of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Core i7-6800K. Overall benchmark performance is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark 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.

i7-6800K 7.03

Passmark

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.

Benchmark coverage: 68%

i7-6800K 10760

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Benchmark coverage: 41%

i7-6800K 1230

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Benchmark coverage: 41%

i7-6800K 5683

3DMark Fire Strike Physics

Benchmark coverage: 4%

i7-6800K 14300

Mining hashrates

Cryptocurrency mining performance of Core i7-6800K. Usually measured in megahashes per second.

Bitcoin / BTC (SHA256) 79 Mh/s  

Gaming performance

Relative perfomance

Overall Core i7-6800K performance compared to nearest competitors among desktop CPUs.


AMD equivalent

According to our data, the closest AMD alternative to Core i7-6800K is Ryzen 3 4300G, which is faster by 2% and higher by 8 positions in our ranking.

Ryzen 3 4300GRyzen 34300G
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Here are some closest AMD rivals to Core i7-6800K:

Similar processors

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

i5-9600KFCore i59600KF
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i7-9700TCore i79700T
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i5-9600KCore i59600K
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i7-5930KCore i75930K
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i5-9600Core i59600
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i7-8700TCore i78700T
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Recommended GPUs

People consider these graphics cards to be good for Core i7-6800K, according to our PC configuration statistics.

These are the fastest graphics cards for Core i7-6800K in our user configuration statistics. There is a total of 461 configurations based on Core i7-6800K in our database.

User ratings: view and submit

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


4 197 votes

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Questions and comments

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