Core i7-6700K

Details and Benchmarks for Intel Core i7-6700K

Sysbuilds Alpha Stage!

Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Core i7-6700K based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

5,698 Rank: 365
Rank Name Score Visual
361 Xeon E-2186M 5,702
+0.1%
362 Ryzen 5 3600X 5,701
+0.1%
363 Core i3-7350K 5,700
+0%
364 Core i7-10700 5,700
+0%
365 Core i7-6700K 5,698
366 Intel Core i7-4770R 5,697
+-0%
367 EPYC 7282 5,693
-0.1%
368 Xeon E5-2698 v4 5,693
-0.1%
369 Ryzen 7 4800HS 5,692
-0.1%
370 Pentium Gold G7400 5,691
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Core i7-6700K based on multi-threaded benchmark results.

5,447 Rank: 416
Rank Name Score Visual
412 Xeon E5-2648L v4 5,458
+0.2%
413 Xeon W-2140B 5,453
+0.1%
414 Ryzen 7 1700X 5,452
+0.1%
415 Xeon Gold 6240 5,449
+0%
416 Core i7-6700K 5,447
417 Core i7-9700KF 5,445
+-0%
418 Xeon E5-2686 v4 5,440
-0.1%
419 Ryzen 7 PRO 4750GE 5,432
-0.3%
420 Xeon Gold 5115 5,428
-0.3%
421 Ryzen 5 PRO 1600 5,427
-0.4%

View full ranking →

Singlecore Score

Single-core performance score for Core i7-6700K based on single-threaded benchmark results.

5,865 Rank: 322
Rank Name Score Visual
318 Ryzen 7 PRO 4750G 5,879
+0.2%
319 Ryzen 3 5425U 5,875
+0.2%
320 Core i7-9700F 5,872
+0.1%
321 Xeon Gold 6438Y+ 5,872
+0.1%
322 Core i7-6700K 5,865
323 Ryzen 3 PRO 5450U 5,863
+-0%
324 Ryzen 7 5825U 5,861
-0.1%
325 Ryzen 9 4900H 5,859
-0.1%
326 Core i7-8700B 5,858
-0.1%
327 Core i7-10700 5,858
-0.1%

View full ranking →

Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Core i7-6700K based on integer math, floating point math, and prime number computation benchmarks.

4,727 Rank: 609
Rank Name Score Visual
605 Core i7-1068NG7 4,729
+0%
606 Core i5-9400T 4,728
+0%
607 Xeon E3-1270 v6 4,728
+0%
608 Xeon E5-2637 v4 4,728
+0%
609 Core i7-6700K 4,727
610 Xeon W-2123 4,725
+-0%
611 Ryzen 5 1500X 4,725
+-0%
612 Core i7-4790K 4,724
-0.1%
613 Core i5-9500T 4,723
-0.1%
614 Xeon E5-1630 v4 4,723
-0.1%

View full ranking →

Data Processing

Aggregated score for Core i7-6700K based on data encryption, data compression, and string sorting benchmarks.

4,748 Rank: 610
Rank Name Score Visual
606 Core i5-8400 4,749
+0%
607 Core i3-10100 4,749
+0%
608 Core i7-1185G7E 4,749
+0%
609 Xeon E3-1280 v6 4,748
+0%
610 Core i7-6700K 4,748
611 Xeon E3-1270 v6 4,747
+-0%
612 Core i5-8500B 4,745
-0.1%
613 Core i7-1068NG7 4,745
-0.1%
614 Atom C3858 4,744
-0.1%
615 Xeon Gold 5222 4,743
-0.1%

View full ranking →

Physics & Compute

Aggregated score for Core i7-6700K based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,801 Rank: 573
Rank Name Score Visual
569 Core i5-1235U 4,804
+0.1%
570 Ryzen 5 2600X 4,803
+0%
571 Xeon E5-2660 v2 4,803
+0%
572 Ryzen 3 PRO 4350G 4,803
+0%
573 Core i7-6700K 4,801
574 Ryzen 3 PRO 4350GE 4,801
+0%
575 Xeon E5-1650 v2 4,800
+-0%
576 Xeon E3-1270 v6 4,799
+-0%
577 Core i7-8750H 4,798
-0.1%
578 Ryzen 5 2600E 4,798
-0.1%

View full ranking →

Core i7-6700K Details

As of March 2026, the Intel Core i7-6700K remains a notable processor from the Skylake era, though its age is evident. Launched in August 2015, it represents a generation of desktop CPUs that prioritized performance and overclocking flexibility. With a 14 nm manufacturing process and a base clock of 4.0 GHz, the i7-6700K was one of Intel’s flagship offerings at the time, capable of boosting up to 4.2 GHz under load. Despite being over a decade old, it still holds relevance in certain benchmarks, particularly in single-threaded tasks, where it ranks #322 of 2060 in single-core performance with a score of 5865. This suggests that while it no longer competes with modern processors, it remains capable in workloads that benefit from high clock speeds and efficient instruction handling.

The processor's performance is supported by a 91 W TDP, requiring robust cooling solutions, especially when overclocked. It features 4 cores and 8 threads due to Intel Hyper-Threading, making it effective for multi-threaded applications, though its multicore score of 5447 places it at #416 of 2060—indicating that modern CPUs have significantly outpaced it in parallel processing. The L3 cache size of 8 MiB helps maintain high memory throughput, and the dual-channel DDR4-2133 memory support ensures decent bandwidth, although the maximum memory capacity of 64 GiB is limited compared to current standards.

Integrated graphics are provided by the HD Graphics 530, which offers a base frequency of 350 MHz and a max of 1150 MHz, supporting up to three displays. While not suitable for modern gaming or GPU-intensive tasks, it is adequate for basic multimedia and light productivity work. The chip supports advanced technologies such as AVX2, AES-NI, and Intel VT-x, ensuring compatibility with virtualization and encryption-heavy applications. Its unlocked multiplier also makes it a favorite among enthusiasts for overclocking, a feature that remains valuable even today.

In the broader context of modern processors, the i7-6700K is positioned as a legacy component, with its overall score of 5698 placing it at #365 of 2060. While it still performs well in single-threaded scenarios, its multicore performance is notably weaker than contemporary offerings. For users maintaining older systems or seeking a budget-friendly upgrade path, it can still provide reliable performance. However, for new builds or demanding applications, more recent processors from both Intel and AMD offer vastly superior capabilities in both single-core and multi-core workloads.
Frequently Compared

AMD Ryzen 3 PRO 2200GE 2 views

AMD Ryzen 9 PRO 3900 2 views

AMD Ryzen 5 PRO 3500U 2 views

Intel Xeon Silver 4116T 2 views

Intel Core i7-7700HQ 1 view

Intel Intel Core i7-640M 1 view

Intel Core i3-7130U 1 view

Intel Core i7-4790 1 view

Intel Core i7-6700K

Main Specifications

Designer: Intel
Name: Core i7-6700K
Family: Core
Series: i7-6000
Model Number: i7-6700K
Cores: 4
Threads: 8
Base Frequency: 4000 MHz
Turbo Frequency (1 core): 4200 MHz
Turbo Frequency (2 cores): 4000 MHz
Turbo Frequency (3 cores): 4000 MHz
Turbo Frequency (4 cores): 4000 MHz
Clock Multiplier: 40x (unlocked)
Microarchitecture: Skylake
Core Name: Skylake
Core Family: 6
Core Model: 94
Socket: LGA-1151
Package: FCLGA-1151
Chipset: Sunrise
Target Segment: Desktop
Max CPUs: 1
TDP: 91 W
Release Price: $350.00

Cache Specifications

L1 Cache: 256 KiB
L1 Instruction Cache: 128 KiB (8-way set associative)
L1 Data Cache: 128 KiB (8-way set associative)
L2 Cache: 1 MiB (4-way set associative)
L3 Cache: 8 MiB

Memory Specifications

Supported Memory Type: DDR3L-1600 and DDR4-2133
Memory Channels: 2
Maximum Memory: 64 GB
Maximum Bandwidth: 31.79 GB/s
ECC Support: No

Integrated Graphics

GPU: HD Graphics 530
GPU Designer: Intel
GPU Max Frequency: 1150 MHz
Execution Units: 24

Physical Specifications

Process: 14 nm
Die Area: 122 mm²
Manufacturer: Intel
Technology: CMOS
Word Size: 64-bit
ISA: x86-64 (x86)

CPU Features

MMX EMMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 ABM BMI1 BMI2 FMA3 AES RdRand ADX CLMUL F16C x86-16 x86-32 x86-64 Real Protected SMM FPU NX HT TBT 2.0 EIST TXT VT-x VT-d EPT MPX SGX Secure Key SMEP IPT TSX
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