IntelBX80662I76700K
IntelBX8070110400

4 Cores, 8 Threads @4.0GHz, Skylake.
Release date: Q3 2015.

6 Cores, 12 Threads @2.9GHz, Comet Lake.
Release date: Q2 2020.

Real World Speed
Performance profile from 660,782 user samples
588,978 User Benchmarks
Best Bench: 90% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 70% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 70% Great: 90%
SPEED RANK: 224th / 1442
Gaming
Gaming 81%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 67%
Battle cruiser
71,804 User Benchmarks
Best Bench: 91% Base clock 2.9 GHz, turbo 4 GHz (avg)
Worst Bench: 69% Base clock 2.9 GHz, turbo 0.45 GHz (avg)
Poor: 69% Great: 91%
SPEED RANK: 186th / 1442
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 76%
Battleship
Effective Speed
Effective CPU Speed
80.8 % 84.5 % +5%
Memory
Avg. Memory Latency
88.6 Pts +2% 86.6 Pts
1-Core
Avg. Single Core Speed
119 Pts 119 Pts
2-Core
Avg. Dual Core Speed
224 Pts 232 Pts +4%
4-Core
Avg. Quad Core Speed
395 Pts 443 Pts Faster quad-core speed.
+12%
8-Core
Avg. Octa Core Speed
597 Pts 722 Pts Faster octa-core speed.
+21%
Memory
OC Memory Latency
95.9 Pts +1% 95.4 Pts
1-Core
OC Single Core Speed
137 Pts Slightly faster OC single-core speed.
+10%
125 Pts
2-Core
OC Dual Core Speed
258 Pts +4% 247 Pts
4-Core
OC Quad Core Speed
459 Pts 488 Pts Slightly faster OC quad-core speed.
+6%
8-Core
OC Octa Core Speed
696 Pts 776 Pts Faster OC octa-core speed.
+11%
Market Share
Based on 67,714,564 CPUs tested
Market Share
Market Share (trailing 30 days)
1.13 % Hugely higher market share.
+85%
0.61 %
Value
Value For Money
91.1 % 104 % Better value.
+14%
User Rating
UBM User Rating
78 % 85 % Slightly more popular.
+9%
Price
Price (score)
$180 $130 Cheaper.
+28%
Age
Newest
104 Months 47 Months Much more recent.
+55%
TDP
Thermal Design Power (TDP)
91 Watts 65 Watts More energy efficient.
+29%
Cores
CPU Processing Cores
4 cores 6 cores Much higher core count.
+50%
Threads
CPU Processing Threads
8 threads 12 threads Much higher thread count.
+50%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
4 GHz Much faster base frequency.
+38%
2.9 GHz
Turbo Clock
Turbo Clock Speed
4.2 GHz 4.3 GHz +2%
64-Core
OC Multi Core Speed
716 Pts 979 Pts Much faster OC 64-core speed.
+37%
64-Core
Avg. Multi Core Speed
612 Pts 912 Pts Much faster 64-core speed.
+49%
Series
CPU Architecture
Skylake Comet Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1200
Graphics
Integrated Graphics
HD 530 UHD 630
Launch Date
Launch Date
Q3'15 Q2'20
Cache
Cache
8 MB SmartCache 12 MB Intel® Smart Cache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Max Turbo Frequency
Max Turbo Frequency
4.2 GHz 4.30 GHz
Bus Speed
Bus Speed
8 GT/s DMI3 8 GT/s
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 128 GB
Memory Types
Memory Types
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR4-2666
Memory Bandwidth
Max Memory Bandwidth
34.1 GB/s 41.6 GB/s
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 530 Intel® UHD Graphics 630
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.10 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2.0 2
PCI Express Revision
PCI Express Revision
3.0 3

More specs » More specs »
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The Core i7-6700K is Intel's latest "Skylake" flagship processor. It replaces the hugely successful i7-4790K and takes the crown as the fastest mainstream consumer CPU available. Comparing performance and specs between the 4790K and 6700K shows that the configuration is largely unchanged (same base clocks, cores, threads) but the improved manufacturing process (14nm) brings a small reduction in TDP and a performance improvement of 8%; almost exactly the same jump as between the Ivy Bridge 3770K and Haswell 4770K. Owners of any unlocked-K Intel CPU from Sandy Bridge or onwards still have no real reason to upgrade as the performance improvements are largely academic but the i7-6700K will be the CPU of choice for the vast majority of top end PC builds in 2015. [Aug '15 CPUPro]

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Processor Rankings (Price vs Performance) April 2024 CPU Rankings

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute

Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

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How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
  • - See speed test results from other users
  • - Compare your components to the current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware

 Frequently Asked Questions

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