IntelBX80662I76700K
IntelBX80562Q6600

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

VS
About

4 Cores, 4 Threads @2.4GHz, Core.
Release date: Q1 2007.

Real World Speed
Performance profile from 391,224 user samples
350,102 User Benchmarks
Best Bench: 95% Base clock 4 GHz, turbo 4.7 GHz (avg)
Worst Bench: 66% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 66% Great: 95%
SPEED RANK: 57th / 1197
Gaming
Gaming 81%
Aircraft carrier
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 57%
Gunboat
41,122 User Benchmarks
Best Bench: 32% Base clock 3 GHz, turbo 2.95 GHz (avg)
Worst Bench: 16% Base clock 2.4 GHz
Poor: 16% Great: 32%
SPEED RANK: 813th / 1197
Gaming
Gaming 25%
Surfboard
Desktop
Desktop 25%
Raft
Workstation
Workstation 14%
Tree trunk
Effective Speed
Effective CPU Speed
80.8 % Hugely faster effective speed.
+228%
24.7 %
1-Core
Avg. Single Core Mixed Speed
126 Pts Hugely faster single-core speed.
+239%
37.2 Pts
2-Core
Avg. Dual Core Mixed Speed
244 Pts Hugely faster dual-core speed.
+232%
73.6 Pts
4-Core
Avg. Quad Core Mixed Speed
432 Pts Hugely faster quad-core speed.
+211%
139 Pts
8-Core
Avg. Octa Core Mixed Speed
641 Pts Hugely faster octa-core speed.
+351%
142 Pts
64-Core
Avg. Multi Core Mixed Speed
652 Pts Hugely faster 64-core speed.
+356%
143 Pts
1-Core
OC Single Core Mixed Speed
142 Pts Hugely faster OC single-core speed.
+202%
47 Pts
2-Core
OC Dual Core Mixed Speed
284 Pts Hugely faster OC dual-core speed.
+203%
93.8 Pts
4-Core
OC Quad Core Mixed Speed
533 Pts Hugely faster OC quad-core speed.
+188%
185 Pts
8-Core
OC Octa Core Mixed Speed
753 Pts Hugely faster OC octa-core speed.
+305%
186 Pts
64-Core
OC Multi Core Mixed Speed
752 Pts Hugely faster OC 64-core speed.
+306%
185 Pts
Market Share
Based on 21,817,177 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.33 % Hugely higher market share.
+565%
0.2 %
Value
Value For Money
81.1 % Hugely better value.
+196%
27.4 %
User Rating
UBM User Rating
106 % Much more popular.
+61%
66 %
Price
Price (score)
$275 $190 Much cheaper.
+31%
Age
Newest
51 Months Much more recent.
+67%
154 Months
TDP
Thermal Design Power (TDP)
91 Watts Slightly more energy efficient.
+13%
105 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+78%
65 nm
Base Clock
Base Clock Speed
4 GHz Much faster base frequency.
+67%
2.4 GHz
Turbo Clock
Turbo Clock Speed
4.2 GHz Much faster turbo frequency.
+75%
2.4 GHz
Series
CPU Architecture
Skylake Core
Socket
Motherboard Socket
FCLGA1151 LGA775
Graphics
Integrated Graphics
HD 530 None
Launch Date
Launch Date
Q3'15 Q1'07
Cache
Cache
8 MB SmartCache 8 MB L2
Lithography
Lithography
14 nm 65 nm
Recommended Price
Recommended Customer Price
$339.00 - $350.00 N/A
Bus Speed
Bus Speed
8 GT/s DMI3 1066 MHz FSB
Turbo Boost Tech
Intel® Turbo Boost Technology
2.0 No
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
AES New Instructions
Intel® AES New Instructions
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

The Core2 Quad Q6600 is over 7 years old which is a lot of processor lifetimes! This particular model has been included in the group test simply as a reference because of its exceptional popularity back when it was at the forefront of technological advance. The Q6600's four physical cores demonstrate exceptional overclocking capacity and often achieve in excess of 40% performance increases. Modern Quad core processors offer nearly three times more performance on both single and multi-core workloads. There have also been lots of non-processing related improvements in the platform over the last 7 years which include SATA 600 MB/s, USB 3.0 PCIe and more. [Mar '14 CPUPro]

MORE DETAILS

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

We calculate effective speed which measures real world performance for typical gamers and desktop users. 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.

UserBenchmark of the month

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

 Best User Rated

The Best.
CPUGPUSSD
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Intel Core i7-9700K $340AMD RX 590 $186Samsung 860 Evo 250GB $51
HDDRAMUSB
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