IntelBX80662I76700K
IntelBX80684I38300

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

4 Cores, 4 Threads @3.70 GHz, Coffee Lake.
Release date ≈ Q2 2018.

Real World Speed
Performance profile from 329,788 user samples
329,065 User Benchmarks
Best Bench: 103% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 72% Base clock 4 GHz, turbo 1.55 GHz (avg)
Poor: 72% Great: 103%
SPEED RANK: 59th / 1173
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 90%
Aircraft carrier
Workstation
Workstation 65%
Battle cruiser
723 User Benchmarks
Best Bench: 86% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Worst Bench: 66% Base clock 3.7 GHz, turbo 0.8 GHz (avg)
Poor: 66% Great: 86%
SPEED RANK: 91st / 1173
Gaming
Gaming 80%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 48%
Yacht
Effective Speed
Effective CPU Speed
88.4 % Slightly faster effective speed.
+11%
79.5 %
SC Mixed
Avg. Single Core Mixed Speed
125 Pts Slightly faster single-core speed.
+13%
111 Pts
QC Mixed
Avg. Quad Core Mixed Speed
431 Pts +5% 411 Pts
MC Mixed
Avg. Multi Core Mixed Speed
655 Pts Much faster multi-core speed.
+56%
420 Pts
SC Mixed
OC Single Core Mixed Speed
142 Pts Faster OC single-core speed.
+23%
115 Pts
QC Mixed
OC Quad Core Mixed Speed
528 Pts Faster OC quad-core speed.
+17%
452 Pts
MC Mixed
OC Multi Core Mixed Speed
755 Pts Much faster OC multi-core speed.
+66%
455 Pts
Market Share
Based on 18,583,216 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.61 % Insanely higher market share.
+16,000%
0.01 %
Value
Value For Money
91 % 95.4 % +5%
User Rating
UBM User Rating
84 % Much more popular.
+47%
57 %
Price
Price (score)
$270 $180 Much cheaper.
+34%
Age
Newest
47 Months 15+ Months Much more recent.
+68%
SC Int
Single Core Integer Speed
138 Pts Faster single-core int speed.
+24%
111 Pts
SC Float
Single Core Floating Point Speed
147 Pts Faster single-core fp speed.
+22%
120 Pts
QC Int
Quad Core Integer Speed
514 Pts Faster quad-core int speed.
+20%
430 Pts
QC Float
Quad Core Floating Point Speed
555 Pts Faster quad-core fp speed.
+16%
479 Pts
MC Int
Multi Core Integer Speed
687 Pts Much faster multi-core int speed.
+59%
433 Pts
MC Float
Multi Core Floating Point Speed
804 Pts Much faster multi-core fp speed.
+67%
481 Pts
Launch Date
Launch Date
Q3'15 Q2'18
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $138.00 - $147.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (65W)
Memory Types
Memory Types
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR4-2400
Memory Bandwidth
Max Memory Bandwidth
34.1 GB/s 37.5 GB/s
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 530 Intel® UHD Graphics 630
Turbo Boost Tech
Intel® Turbo Boost Technology
2.0 No
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
TSX-NI
Intel® TSX-NI
Yes No

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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20 dollars for nothing go buy i3 8100 [Jul '18 Camel]

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Processor Rankings (Price vs Performance) July 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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 freeware 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 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.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
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  • - Explore your best upgrade options with a virtual PC build.
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HDDRAMUSB
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