Intel® Core™ i7-6700K

The Intel Core i7-6700K is a desktop processor with 4 cores and 8 threads, built on the Skylake architecture (14 nm process). It launched in Jul 2015. Clocks run from 4.0 GHz base to 4.2 GHz boost. A 8-MB L3 cache backs the cores (2.3 MB per core). It addresses DDR4 memory up to 64 GB across 2 channels. The chip drops into the FCLGA1151 socket and exposes PCIe 3.0 (16 lanes). Rated TDP is 91 W. Notable platform capabilities: Extended Page Tables (EPT). Feex currently counts 1 machine in its hardware fleet with exactly this processor.

The Intel Core i7-6700K scores 2,495 in single-core performance and 8,933 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 4,721 for overall performance, 9,299 for productivity performance, 9,404 for creator performance, 8,598 for engineering performance and 9,718 for gaming performance. Its multi-core throughput works out to 2,233 per core, 1,117 per thread and 98 per watt. Its computed efficiency index is 495. Its performance index is 59, so its overall performance is 41% below the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

In the individual workload tests the Intel Core i7-6700K scores 28,235 in integer math, 17,428 in floating-point math, 125,504 in compression, 3,072 in cryptography, 635 in physics simulation, 8,281 in vector SIMD, 30 in the prime sieve and 15,769 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 52% below in integer math, 62% below in floating-point math, 45% below in compression, 73% below in cryptography, 42% below in physics simulation, 47% below in vector SIMD, 55% below in the prime sieve and 30% below in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

The Intel Core i7-6700K has 4 physical cores and runs 8 logical threads. It runs 2 threads per core. It runs at a base clock of 4.00 GHz and boosts up to 4.20 GHz.

The Intel Core i7-6700K is a desktop processor, belongs to the Intel Core i7 family, uses the Skylake architecture, carries the codename Skylake and is manufactured on a 14 nm process. It launched in Jul 2015.

The Intel Core i7-6700K has 256 KB of L1 cache, 1 MB of L2 cache and 8 MB of L3 cache. That adds up to about 9.3 MB of cache, or 2.31 MB per core. Each core has 256 KB of private L2 cache.

The Intel Core i7-6700K has a 3-level cache hierarchy: L1 at 256 KB, L2 at 1 MB and L3 at 8 MB. L3 is the largest level and makes up about 86% of the cache listed here.

The Intel Core i7-6700K supports DDR4 memory, addresses up to 64 GB of memory, uses 2 memory channels and runs memory at up to 2,133 MT/s. It does not support DDR5 and LPDDR memory.

The Intel Core i7-6700K includes integrated graphics (Intel HD Graphics 530) and clocks the graphics up to 1.15 GHz.

The Intel Core i7-6700K uses the FCLGA1151 socket, supports PCI Express 3.0 and provides up to 16 PCIe lanes.

The Intel Core i7-6700K has a rated TDP of 91 W.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

The Intel Core i7-6700K is manufactured by Intel. It launched at a price of $339.

The Intel Core i7-6700K is also identified by the model number i7-6700K.

After an audit, 1 value was corrected and 1 empty field was filled on the Intel Core i7-6700K record. Each change is listed with its old value, new value, rule and sources.

• L2 cache (total): 256 KB → 1,024 KB. Rule: L2 cache was stored per core. stored equals the per-core size in PassMark "4 x 256 KB". Sources: Vendor page (intel.com); PassMark: Intel Core i7-6700K @ 4.00GHz; Wikipedia: List of Intel Core desktop processors (revision 1371607091).

The audit log is public: all changes for this CPU, the corrections overview and the method.

Feex has recorded 64% of the specifications it tracks for the Intel Core i7-6700K. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: L4 Cache. Memory Support: Memory Bandwidth and ECC Memory. Graphics: Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count and Foundry. Naming & Aliases: Normalized Name, SKU, Processor Number and Part Number.

Processors that use the same FCLGA1151 socket as the Intel Core i7-6700K and have the closest multi-core scores in the Feex database include Intel Xeon E3-1270 v6, Intel Xeon E3-1275 v6, Intel Xeon E3-1280 v6, Intel Core i5-9500E and Intel Xeon E3-1240 v6.