Intel Core i7 6700K

Intel Core i7 6700K
  • Cores: 4
  • L3 cache: 8MB (shared)
  • TDP: 91 W
  • Transistor size: 14 nm
Core i7 6700K - desktop processor produced by Intel for socket LGA-1151 that has 4 cores and 8 threads. The base clock frequency of the CPU is 4000 MHz, but due to Turbo Boost technology, it can perform up to 4200 MHz. The size of the L3 cache is 8 MB. Please note that this chip has integrated graphics Intel HD Graphics 530.

Review

Single-Core Performance
42
Multi-Core Performance
15
Power Efficiency
41
Integrated Graphics
n/a
NanoReview Final Score
31
Compare Intel Core i7 6700K with other CPUs

Test in Benchmarks

Performance test of Intel Core i7 6700K in benchmarks

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
54
Cinebench 2024 (Multi)
279

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
1512
Geekbench 6 (Multi-Core)
5072
File compression 428.4 MB/sec
Clang compilation 35.7 Klines/sec
HTML 5 Browser 116.8 pages/sec
PDF Renderer 168.3 Mpixels/sec
Text processing 152.1 pages/sec
Background blur 28 images/sec
Photo processing 50.9 images/sec
Ray tracing 6.53 Mpixels/sec
Sources: GeekBench [1] โ€“ 1195 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
2497
Passmark CPU (Multi-Core)
8939
Integer math 28.2 GOps/sec
Floating point math 17.4 GOps/sec
Find prime numbers 30M Primes/sec
Random string sorting 15.8M Strings/sec
Data encryption 3.1 GBytes/sec
Data compression 125.7 MBytes/sec
Physics 636 Frames/sec
Extended instructions 8.3B Matrices/sec
Sources: PassMark [3] โ€“ 19003 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
81.55

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 3.1 PPW
Geekbench 6 Multi / Watt 55.7 PPW
Passmark CPU Mark / Watt 98.2 PPW
Blender / Watt 0.9 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Recent User Tests

The latest benchmark tests that have been submitted by users
DateBenchmarkResult
๐Ÿ“˜ 2025-11-08 (CRSTN)Cinebench 202467 / 328
๐Ÿ“˜ 2024-09-27 (A)Cinebench 202454 / 279

Specifications

Core i7 6700K technical specifications

General

Vendor Intel
Released August 5, 2015
Type Desktop
Instruction Set x86-64
Codename Skylake
Model number i7-6700K
Integrated GPU HD Graphics 530
Successor - Intel Core Ultra 7 270K Plus

CPU

Performance Cores
P-Cores 4
P-Threads 8
Base Frequency (P) 4.0 GHz
Turbo Boost Frequency (P) 4.2 GHz
Total
Total Cores 4
Total Threads 8
Bus Frequency 100 MHz
Multiplier 40x
Bus Bandwidth 8 GT/s
L1 Cache 64K (per core)
L2 Cache 256K (per core)
L3 Cache 8MB (shared)
Unlocked Multiplier Yes

Package

Transistors 1.75 billions
Fabrication Process 14 nm
TDP (PL1) 91 W
Socket LGA-1151
Desktop CPU ranking - 178th place

iGPU

Integrated Graphics Intel HD Graphics 530
GPU Boost Clock 1150 MHz

Memory Support

Memory Types - DDR4-2133
- DDR3L-1600
Max. Memory Size 64 GB
Memory Channels 2
Max. Memory Bandwidth 34.1 GB/s
ECC Support No

Misc

Official Site Intel Core i7 6700K official page
PCI Express Version 3.0
PCI Express Lanes 16
Technologies
- Compute: ABM, BMI1, BMI2, CLMUL, F16C
- Performance: EIST, HTT, TBT 2.0, TSX
- Virtualization: EPT, VT-d, VT-x
- Security: MPX, SGX, SMEP, TXT, XD bit

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