IntelBX80662I56600K
AMDYD170XBCAEWOF

4 Cores, 4 Threads @3.5GHz, Skylake.
Release date: Q3 2015.

VS
About

8 Cores, 16 Threads @3.4GHz, Zen.
Release date: Q1 2017.

Real World Speed
Performance profile from 275,151 user samples
208,241 User Benchmarks
Best Bench: 85% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 51% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 51% Great: 85%
SPEED RANK: 95th / 1182
Gaming
Gaming 69%
Battle cruiser
Desktop
Desktop 80%
Aircraft carrier
Workstation
Workstation 42%
Speed boat
66,910 User Benchmarks
Best Bench: 82% Base clock 4.1 GHz, turbo 4.05 GHz (avg)
Worst Bench: 63% Base clock 3.8 GHz, turbo 2.15 GHz (avg)
Poor: 63% Great: 82%
SPEED RANK: 78th / 1182
Gaming
Gaming 74%
Battleship
Desktop
Desktop 73%
Battleship
Workstation
Workstation 76%
Battleship
Effective Speed
Effective CPU Speed
68.9 % 73.6 % Slightly faster effective speed.
+7%
1-Core
Avg. Single Core Mixed Speed
117 Pts Slightly faster single-core speed.
+11%
105 Pts
2-Core
Avg. Dual Core Mixed Speed
232 Pts Slightly faster dual-core speed.
+11%
209 Pts
4-Core
Avg. Quad Core Mixed Speed
428 Pts +3% 414 Pts
8-Core
Avg. Octa Core Mixed Speed
437 Pts 775 Pts Much faster octa-core speed.
+77%
64-Core
Avg. Multi Core Mixed Speed
440 Pts 1169 Pts Hugely faster 64-core speed.
+166%
1-Core
OC Single Core Mixed Speed
139 Pts Faster OC single-core speed.
+20%
116 Pts
2-Core
OC Dual Core Mixed Speed
276 Pts Faster OC dual-core speed.
+20%
230 Pts
4-Core
OC Quad Core Mixed Speed
532 Pts Faster OC quad-core speed.
+16%
460 Pts
8-Core
OC Octa Core Mixed Speed
533 Pts 896 Pts Much faster OC octa-core speed.
+68%
64-Core
OC Multi Core Mixed Speed
534 Pts 1306 Pts Hugely faster OC 64-core speed.
+145%
Market Share
Based on 19,510,653 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.9 % Hugely higher market share.
+100%
0.45 %
Value
Value For Money
74.5 % 85.1 % Slightly better value.
+14%
User Rating
UBM User Rating
73 % 113 % Much more popular.
+55%
Price
Price (score)
$210 $164 Cheaper.
+22%
Age
Newest
48 Months 29 Months Much more recent.
+40%
TDP
Thermal Design Power (TDP)
91 Watts +4% 95 Watts
Cores
CPU Processing Cores
4 cores 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads
4 threads 16 threads Hugely higher thread count.
+300%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.5 GHz +3% 3.4 GHz
Turbo Clock
Turbo Clock Speed
3.9 GHz +3% 3.8 GHz
Series
CPU Architecture
Skylake Zen
Socket
Motherboard Socket
FCLGA1151 AM4
Graphics
Integrated Graphics
HD 530 None
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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 AMD Ryzen 7 1700X isn't due for release until next week but two of our users has already submitted benchmarks. Comparing the quad and single core scores from our samples shows a relative 4.3% boost on the single core score so it’s possible that turbo wasn’t fully engaged (12% turbo boost expected). These preliminary results are seriously impressive as they put Zen’s IPC between 0% and 9% below Intel’s Kaby Lake. Even in the worst case scenario these results are still impressive. Comparing Intel’s $1,000 6900K and the 1700X shows that AMD delivers comparable performance for half the price! A shake-up of the CPU market will unfold as Zen rolls out. If Ryzen CPUs can overclock to 4.6+ GHz they will likely dominate the entire market putting a very welcome end to the monotonous tick-tock of recent years. [Feb '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) August 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
Intel Core i5-9400F $140Nvidia GTX 1660 $220Samsung 850 Evo 250GB $86
Intel Core i5-9600K $219Nvidia GTX 1660-Ti $269Samsung 850 Evo 500GB $102
AMD Ryzen 5 3600 $198AMD RX 5700 XT $400Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $42G.SKILL Trident Z DDR4 3200 C14 4x16GB $695SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 16GB $24
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