IntelBX80662I76700K
IntelBX80677I57600K

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

4 Cores, 4 Threads
@3.8GHz Kaby Lake (2017)

Real World Speed
Performance profile from 183,202 user samples
153,004 User Benchmarks
Best Bench: 107% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 81% Base clock 4 GHz, turbo 0.95 GHz (avg)
Poor: 81% Great: 107%
SPEED RANK: 23rd / 980
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 94%
Nuclear submarine
Workstation
Workstation 69%
Battle cruiser
30,198 User Benchmarks
Best Bench: 113% Base clock 3.8 GHz, turbo 5.15 GHz (avg)
Worst Bench: 77% Base clock 3.8 GHz, turbo 0.8 GHz (avg)
Poor: 77% Great: 113%
SPEED RANK: 20th / 980
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 58%
Gunboat
Effective Speed
Effective CPU Speed
93 % -3% 95.5 % +3%
SC Mixed
Avg. Single Core Mixed Speed
131 Pts 0% 131 Pts 0%
QC Mixed
Avg. Quad Core Mixed Speed
455 Pts -9% 496 Pts Slightly faster quad-core speed.
+9%
MC Mixed
Avg. Multi Core Mixed Speed
693 Pts Much faster multi-core speed.
+37%
506 Pts -37%
SC Mixed
OC Single Core Mixed Speed
144 Pts -6% 152 Pts Slightly faster OC single-core speed.
+6%
QC Mixed
OC Quad Core Mixed Speed
540 Pts -9% 591 Pts Slightly faster OC quad-core speed.
+9%
MC Mixed
OC Multi Core Mixed Speed
780 Pts Much faster OC multi-core speed.
+31%
597 Pts -31%
Market Share
Based on 5,505,878 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.48 % Much higher market share.
+76%
1.41 % -76%
Value
Value For Money
90.4 % -15% 104 % Better value.
+15%
User Rating
UBM User Rating
104 % -17% 122 % More popular.
+17%
Price
Price (score)
$314 -27% $230 Cheaper.
+27%
Age
Newest
26 Months -65% 9 Months Much more recent.
+65%
TDP
Thermal Design Power (TDP)
91 Watts 0% 91 Watts 0%
Cores
CPU Processing Cores
4 cores 0% 4 cores 0%
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads -100%
Lithography
Manufacturing process
14 nm 0% 14 nm 0%
Base Clock
Base Clock Speed
4 GHz Slightly faster base frequency.
+5%
3.8 GHz -5%
Turbo Clock
Turbo Clock Speed
4.2 GHz 0% 4.2 GHz 0%
SC Int
Single Core Integer Speed
142 Pts -4% 148 Pts +4%
SC Float
Single Core Floating Point Speed
147 Pts -6% 156 Pts Slightly faster single-core fp speed.
+6%
QC Int
Quad Core Integer Speed
525 Pts -10% 576 Pts Slightly faster quad-core int speed.
+10%
QC Float
Quad Core Floating Point Speed
554 Pts -11% 615 Pts Slightly faster quad-core fp speed.
+11%
MC Int
Multi Core Integer Speed
721 Pts Faster multi-core int speed.
+25%
579 Pts -25%
MC Float
Multi Core Floating Point Speed
819 Pts Much faster multi-core fp speed.
+32%
619 Pts -32%
Series
CPU Architecture
Skylake (2015) Kaby Lake (2017)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 530 HD 630
Launch Date
Launch Date
Q3'15 Q1'17
Cache
Cache
8 MB SmartCache 6 MB
Recommended Price
Recommended Customer Price
$339.00 - $350.00 $242.00 - $243.00
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

More specs » More specs »
ADVERTISEMENT

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 i5-7600K targets high end gamers, it sits just behind the flagship i7-7700K in Intel’s Kaby Lake lineup. The 7600K will likely be the most popular gaming CPU of 2017 (some competition from AMD’s upcoming Zen/Ryzen CPUs, would be very welcome). Comparing the 7600K and 6600K shows that the two processors are very closely matched and comparing the 7600K vs the hyper-threaded 7700K highlights the relative strength of the 7700K for workstation performance. There are no significant architectural differences between Kaby Lake and Skylake so, when fully overclocked, the two generations should perform similarly but Kaby Lake offers faster base clocks, improved speed shift technology which helps CPU responsiveness, and better integrated graphics[Jan '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) October 2017 CPU Rankings.

Welcome to our desktop CPU comparison. We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by price to yield a value for money rating which is geared towards gamers. Calculated values don't always paint the whole picture so we check them against hundreds of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top CPUs. [CPUPro]

ADVERTISEMENT
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 userbenchmark.com.
  • - 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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-7700K $299Nvidia GTX 1070 $386Samsung 850 Evo 250GB $95
AMD Ryzen 7 1700 $280AMD RX 480 $508Samsung 850 Pro 256GB $126
Intel Core i5-7600K $230Nvidia GTX 1060-6GB $265Samsung 850 Evo 500GB $140
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $160SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $920SanDisk Extreme 32GB $22
Seagate Barracuda 2TB (2016) $67Corsair Vengeance LPX DDR4 3200 C16 2x8GB $180SanDisk Ultra Fit 32GB $13
Today's hottest deals
User Guide  •  About  •  FAQs  •  @Email  •  Privacy  •  Developer Feedback