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 469,075 user samples
467,605 User Benchmarks
Best Bench: 95% Base clock 4 GHz, turbo 4.7 GHz (avg)
Worst Bench: 68% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 68% Great: 95%
SPEED RANK: 98th / 1272
Gaming
Gaming 83%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 69%
Battle cruiser
1,470 User Benchmarks
Best Bench: 85% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Worst Bench: 68% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Poor: 68% Great: 85%
SPEED RANK: 134th / 1272
Gaming
Gaming 80%
Battleship
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 60%
Destroyer
Effective Speed
Effective CPU Speed
83.5 % +5% 79.9 %
Memory
Avg. Memory Latency
90 Pts +0% 89.7 Pts
1-Core
Avg. Single Core Mixed Speed
123 Pts Faster single-core speed.
+12%
110 Pts
2-Core
Avg. Dual Core Mixed Speed
235 Pts Slightly faster dual-core speed.
+8%
217 Pts
4-Core
Avg. Quad Core Mixed Speed
416 Pts +3% 405 Pts
8-Core
Avg. Octa Core Mixed Speed
627 Pts Much faster octa-core speed.
+53%
410 Pts
Memory
OC Memory Latency
96.9 Pts +2% 94.6 Pts
1-Core
OC Single Core Mixed Speed
142 Pts Faster OC single-core speed.
+23%
115 Pts
2-Core
OC Dual Core Mixed Speed
277 Pts Faster OC dual-core speed.
+20%
230 Pts
4-Core
OC Quad Core Mixed Speed
510 Pts Faster OC quad-core speed.
+14%
449 Pts
8-Core
OC Octa Core Mixed Speed
743 Pts Much faster OC octa-core speed.
+66%
447 Pts
Market Share
Based on 34,474,522 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.19 % Insanely higher market share.
+11,800%
0.01 %
Value
Value For Money
83.7 % 95.2 % Better value.
+14%
User Rating
UBM User Rating
140 % Hugely more popular.
+150%
56 %
Price
Price (score)
$276 $147 Much cheaper.
+47%
Age
Newest
62 Months 30+ Months Much more recent.
+52%
64-Core
OC Multi Core Mixed Speed
745 Pts Much faster OC 64-core speed.
+65%
452 Pts
64-Core
Avg. Multi Core Mixed Speed
634 Pts Much faster 64-core speed.
+54%
412 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) October 2020 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 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.
  • - 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.
  • - Share your opinion by voting.

 Frequently Asked Questions

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HDDRAMUSB
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Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $548SanDisk Extreme 16GB $28
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