IntelBX80662I76700K
IntelBX80562Q6600

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

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

Real World Speed
Performance profile from 368,637 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
39,572 User Benchmarks
Best Bench: 35% Base clock 2.4 GHz, turbo 2.35 GHz (avg)
Worst Bench: 17% Base clock 2.4 GHz, turbo 0.85 GHz (avg)
Poor: 17% Great: 35%
SPEED RANK: 754th / 1173
Gaming
Gaming 27%
Raft
Desktop
Desktop 26%
Raft
Workstation
Workstation 16%
Surfboard
Effective Speed
Effective CPU Speed
88.4 % Hugely faster effective speed.
+228%
27 %
SC Mixed
Avg. Single Core Mixed Speed
125 Pts Hugely faster single-core speed.
+235%
37.3 Pts
QC Mixed
Avg. Quad Core Mixed Speed
431 Pts Hugely faster quad-core speed.
+208%
140 Pts
MC Mixed
Avg. Multi Core Mixed Speed
655 Pts Hugely faster multi-core speed.
+355%
144 Pts
SC Mixed
OC Single Core Mixed Speed
142 Pts Hugely faster OC single-core speed.
+200%
47.3 Pts
QC Mixed
OC Quad Core Mixed Speed
528 Pts Hugely faster OC quad-core speed.
+182%
187 Pts
MC Mixed
OC Multi Core Mixed Speed
755 Pts Hugely faster OC multi-core speed.
+302%
188 Pts
Market Share
Based on 18,583,216 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.61 % Hugely higher market share.
+847%
0.17 %
Value
Value For Money
91 % Hugely better value.
+180%
32.5 %
User Rating
UBM User Rating
84 % More popular.
+29%
65 %
Price
Price (score)
$270 $178 Much cheaper.
+34%
Age
Newest
47 Months Much more recent.
+69%
150 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
SC Int
Single Core Integer Speed
138 Pts Hugely faster single-core int speed.
+88%
73.3 Pts
SC Float
Single Core Floating Point Speed
147 Pts Hugely faster single-core fp speed.
+324%
34.7 Pts
QC Int
Quad Core Integer Speed
514 Pts Much faster quad-core int speed.
+75%
294 Pts
QC Float
Quad Core Floating Point Speed
555 Pts Hugely faster quad-core fp speed.
+302%
138 Pts
MC Int
Multi Core Integer Speed
687 Pts Hugely faster multi-core int speed.
+134%
293 Pts
MC Float
Multi Core Floating Point Speed
804 Pts Hugely faster multi-core fp speed.
+478%
139 Pts
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) 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.
  • - 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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