4 Cores, 8 Threads
@4.0GHz Skylake (2015)

4 Cores, 4 Threads
@3.4GHz Kaby Lake (2017)

Real World Speed
Performance profile from 206,534 user samples
182,997 User Benchmarks
Best Bench: 105% Base clock 4 GHz, turbo 4.9 GHz (avg)
Worst Bench: 77% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 77% Great: 105%
SPEED RANK: 28th / 1052
Gaming 91%
Nuclear submarine
Desktop 92%
Nuclear submarine
Workstation 67%
Battle cruiser
23,537 User Benchmarks
Best Bench: 87% Base clock 3.4 GHz, turbo 3.6 GHz (avg)
Worst Bench: 68% Base clock 3.4 GHz, turbo 3.55 GHz (avg)
Poor: 68% Great: 87%
SPEED RANK: 47th / 1052
Gaming 81%
Aircraft carrier
Desktop 79%
Workstation 49%
Effective Speed
Effective CPU Speed
90.8 % Slightly faster effective speed.
80.8 %
SC Mixed
Avg. Single Core Mixed Speed
128 Pts Faster single-core speed.
111 Pts
QC Mixed
Avg. Quad Core Mixed Speed
444 Pts Slightly faster quad-core speed.
419 Pts
MC Mixed
Avg. Multi Core Mixed Speed
679 Pts Much faster multi-core speed.
428 Pts
SC Mixed
OC Single Core Mixed Speed
145 Pts Faster OC single-core speed.
119 Pts
QC Mixed
OC Quad Core Mixed Speed
531 Pts Faster OC quad-core speed.
453 Pts
MC Mixed
OC Multi Core Mixed Speed
777 Pts Much faster OC multi-core speed.
456 Pts
Market Share
Based on 7,873,734 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.95 % Hugely higher market share.
0.68 %
Value For Money
87.4 % 93.9 % Slightly better value.
User Rating
UBM User Rating
94 % More popular.
76 %
Price (score)
$323 $195 Much cheaper.
31 Months 14 Months Much more recent.
Thermal Design Power (TDP)
91 Watts 65 Watts More energy efficient.
CPU Processing Cores
4 cores 4 cores
CPU Processing Threads
8 threads Hugely higher thread count.
4 threads
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
4 GHz Faster base frequency.
3.4 GHz
Turbo Clock
Turbo Clock Speed
4.2 GHz Slightly faster turbo frequency.
3.8 GHz
SC Int
Single Core Integer Speed
142 Pts Faster single-core int speed.
115 Pts
SC Float
Single Core Floating Point Speed
148 Pts Faster single-core fp speed.
122 Pts
QC Int
Quad Core Integer Speed
522 Pts Faster quad-core int speed.
442 Pts
QC Float
Quad Core Floating Point Speed
552 Pts Faster quad-core fp speed.
467 Pts
MC Int
Multi Core Integer Speed
712 Pts Much faster multi-core int speed.
442 Pts
MC Float
Multi Core Floating Point Speed
817 Pts Much faster multi-core fp speed.
468 Pts
CPU Architecture
Skylake (2015) Kaby Lake (2017)
Motherboard Socket
Integrated Graphics
HD 530 HD 630
Launch Date
Launch Date
Q3'15 Q1'17
8 MB SmartCache 6 MB
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $192.00 - $202.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (65W)
Memory Types
Memory Types
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 530 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.10 GHz
vPro Tech
Intel® vPro™ Technology ‡
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes

More specs » More specs »

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]


The Core i5-7500 is not due for release until January 2017 but one of our users has submitted benchmarks for it already. We only have one sample so these benchmark results are obviously preliminary. Comparing the 7500 and 6500 shows that average effective speed is up by an impressive 15%. Although price details are not yet available the i5-7500 is likely to cost around $210 which would be in line with the prices for previous generations of this i5. We will revisit this summary when we have more samples. [Oct '16 CPUPro]


Processor Rankings (Price vs Performance) March 2018 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]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

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AMD Ryzen 5 1600 $189AMD RX 480 $400Samsung 850 Pro 256GB $140
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Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
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