IntelBX80662I56600K
IntelBX80684I99900KS
Real World Speed
Performance profile from 217,879 user samples
216,850 User Benchmarks
Best Bench: 93% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 56% Base clock 3.5 GHz, turbo 4.2 GHz (avg)
Poor: 56% Great: 93%
SPEED RANK: 76th / 1206
Gaming
Gaming 76%
Battleship
Desktop
Desktop 79%
Battleship
Workstation
Workstation 42%
Speed boat
1,029 User Benchmarks
Best Bench: 112% Base clock 4 GHz, turbo 5.3 GHz (avg)
Worst Bench: 97% Base clock 4 GHz, turbo 4 GHz (avg)
Poor: 97% Great: 112%
SPEED RANK: 1st / 1206
Gaming
Gaming 106%
UFO
Desktop
Desktop 106%
UFO
Workstation
Workstation 108%
UFO
Effective Speed
Effective CPU Speed
76.3 % 106 % Much faster effective speed.
+39%
1-Core
Avg. Single Core Mixed Speed
116 Pts 152 Pts Much faster single-core speed.
+31%
2-Core
Avg. Dual Core Mixed Speed
230 Pts 304 Pts Much faster dual-core speed.
+32%
4-Core
Avg. Quad Core Mixed Speed
425 Pts 603 Pts Much faster quad-core speed.
+42%
8-Core
Avg. Octa Core Mixed Speed
433 Pts 1131 Pts Hugely faster octa-core speed.
+161%
1-Core
OC Single Core Mixed Speed
140 Pts 160 Pts Slightly faster OC single-core speed.
+14%
2-Core
OC Dual Core Mixed Speed
277 Pts 320 Pts Faster OC dual-core speed.
+16%
4-Core
OC Quad Core Mixed Speed
534 Pts 636 Pts Faster OC quad-core speed.
+19%
8-Core
OC Octa Core Mixed Speed
534 Pts 1243 Pts Hugely faster OC octa-core speed.
+133%
Market Share
Based on 22,502,018 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.97 % Hugely higher market share.
+471%
0.17 %
Value
Value For Money
83.6 % 84.7 % +1%
User Rating
UBM User Rating
105 % Hugely more popular.
+84%
57 %
Price
Price (score)
$200 Much cheaper.
+68%
$634
Age
Newest
52 Months 1+ Months Hugely more recent.
+98%
64-Core
OC Multi Core Mixed Speed
541 Pts 1717 Pts Hugely faster OC 64-core speed.
+217%
64-Core
Avg. Multi Core Mixed Speed
437 Pts 1607 Pts Hugely faster 64-core speed.
+268%
ADVERTISEMENT

The Intel Core i5-6600K is based on the new "Skylake" 14nm manufacturing process. Sporting 4 physical cores with base/turbo clocks of 3.5/3.9 GHz the 6600K and its predecessor, the 4690K share the same basic configuration and disappointingly, offer similar performance. Comparing the 6600K and 6700K shows that the 6700K has faster multi and single core performance. The improved multi core performance is due to Hyperthreading which is the key differentiator for the i7-6700K. The gap in single core performance can largely be eliminated by overclocking the i5-6600K so although the stock effective speed is significantly higher on the 6700K, this gap diminishes significantly when both processors are overclocked. At a 30% discount, the 6600K is the better value gaming CPU. [Aug '15 CPUPro]

MORE DETAILS

The current gaming king, this 8 core 16 thread monster comes with 4.0GHz base clock with 5.0GHz all core boost but with TDP of 127W. Intel has matured the Skylake 14nm silicon enough to allow even higher clock, better stability and higher IPC, this CPU is refresh of the last-year i9-9900K which is the previous gaming king. This CPU can be overclocked to 5.2GHz all core but beefy air cooler is necessary to keep the CPU from overheating or open loop liquid cooling if you want to keep the CPU as warm as necessary. [Dec '19 ColdSpy]

MORE DETAILS

Processor Rankings (Price vs Performance) December 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. 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]

ADVERTISEMENT

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
Intel Core i5-9400F $150Nvidia GTX 1660S (Super) $244Crucial MX500 250GB $45
Intel Core i5-9600K $200AMD RX 590 $180Samsung 850 Evo 120GB $150
Intel Core i7-9700K $360Nvidia RTX 2060 $324Samsung 850 Pro 512GB $230
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $65SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $58SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $613SanDisk Extreme 16GB $24
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer Feedback