IntelBX80662I76700K
IntelBX80684I59400

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

6 Cores, 6 Threads @2.90 GHz, 65 W.
Release date ≈ Q1 2019.

Real World Speed
Performance profile from 329,332 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
267 User Benchmarks
Best Bench: 96% Base clock 2.9 GHz, turbo 3.95 GHz (avg)
Worst Bench: 84% Base clock 2.9 GHz, turbo 3.9 GHz (avg)
Poor: 84% Great: 96%
SPEED RANK: 47th / 1173
Gaming
Gaming 92%
Nuclear submarine
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed
88.4 % 92 % +4%
SC Mixed
Avg. Single Core Mixed Speed
125 Pts +3% 121 Pts
QC Mixed
Avg. Quad Core Mixed Speed
431 Pts 467 Pts Slightly faster quad-core speed.
+8%
MC Mixed
Avg. Multi Core Mixed Speed
655 Pts 672 Pts +3%
SC Mixed
OC Single Core Mixed Speed
142 Pts Slightly faster OC single-core speed.
+13%
126 Pts
QC Mixed
OC Quad Core Mixed Speed
528 Pts Slightly faster OC quad-core speed.
+8%
491 Pts
MC Mixed
OC Multi Core Mixed Speed
755 Pts Slightly faster OC multi-core speed.
+5%
717 Pts
Market Share
Based on 18,582,466 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.61 % Insanely higher market share.
+5,267%
0.03 %
Value
Value For Money
91 % 108 % Better value.
+19%
User Rating
UBM User Rating
84 % Much more popular.
+53%
55 %
Price
Price (score)
$270 $189 Cheaper.
+30%
Age
Newest
47 Months 4+ Months Hugely more recent.
+91%
SC Int
Single Core Integer Speed
138 Pts Slightly faster single-core int speed.
+13%
122 Pts
SC Float
Single Core Floating Point Speed
147 Pts Slightly faster single-core fp speed.
+11%
132 Pts
QC Int
Quad Core Integer Speed
514 Pts Slightly faster quad-core int speed.
+8%
474 Pts
QC Float
Quad Core Floating Point Speed
555 Pts Slightly faster quad-core fp speed.
+8%
512 Pts
MC Int
Multi Core Integer Speed
687 Pts +0% 685 Pts
MC Float
Multi Core Floating Point Speed
804 Pts Slightly faster multi-core fp speed.
+6%
759 Pts
Launch Date
Launch Date
Q3'15 Q1'19
Cache
Cache
8 MB SmartCache 9 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (65W)
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 1.05 GHz
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]

MORE DETAILS

Already not the best choice, and Ryzen 3rd gen is coming out soon. [Jul '19 GamingEliot]

MORE DETAILS

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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 Frequently Asked Questions

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CPUGPUSSD
Intel Core i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $252Nvidia GTX 1080-Ti $750Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $728SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Ultra Fit 32GB $12
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