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IntelBX80662I56600K
IntelBX80658i55675C
▲ 7428,939 ▼

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

VS
▲ 5058 ▼

4 Cores, 4 Threads @3.1 GHz, Broadwell.
Release date ≈ Q3 2015.

Effective Speed 
+13%
Real World Speed
Performance profile from 343,189 user samples
Benchmark your CPU here
342,244 User Benchmarks
Best Bench: 85% Base clock 3.5 GHz, turbo 4.7 GHz (avg)
Worst Bench: 57% Base clock 3.5 GHz, turbo 3.55 GHz (avg)
Poor: 57% Great: 85%
SPEED RANK: 355th / 1442
Gaming
Gaming 72%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 55%
Yacht
945 User Benchmarks
Best Bench: 91% Base clock 3.1 GHz, turbo 4.2 GHz (avg)
Worst Bench: 68% Base clock 3.1 GHz, turbo 3.1 GHz (avg)
Poor: 68% Great: 91%
SPEED RANK: 217th / 1442
Gaming
Gaming 81%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 62%
Destroyer
Effective Speed
Effective CPU Speed 		72.4 % 81.5 % Faster effective speed.
+13%
Average Score 
+10%
Memory
Avg. Memory Latency 		83.3 Pts 89.6 Pts Slightly lower memory latency.
+8%
1-Core
Avg. Single Core Speed 		110 Pts 113 Pts +3%
2-Core
Avg. Dual Core Speed 		218 Pts 222 Pts +2%
4-Core
Avg. Quad Core Speed 		352 Pts 423 Pts Faster quad-core speed.
+20%
8-Core
Avg. Octa Core Speed 		373 Pts 431 Pts Faster octa-core speed.
+16%
Overclocked Score 
+3%
Memory
OC Memory Latency 		95.2 Pts 99.2 Pts +4%
1-Core
OC Single Core Speed 		136 Pts +4% 131 Pts
2-Core
OC Dual Core Speed 		269 Pts +3% 260 Pts
4-Core
OC Quad Core Speed 		455 Pts 510 Pts Faster OC quad-core speed.
+12%
8-Core
OC Octa Core Speed 		476 Pts 511 Pts Slightly faster OC octa-core speed.
+7%
Value & Sentiment 
+∞%
Market Share
Based on 67,755,301 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.47 % Insanely higher market share.
+∞% 		0 %
Value
Value For Money 		102 % Better value.
+26% 		80.6 %
User Rating
UBM User Rating 		74 % Much more popular.
+48% 		50 %
Price
Price (score) 		$81 Much cheaper.
+72% 		$289
Nice To Haves 
+6%
Age
Newest 		104 Months +1% 105+ Months
64-Core
OC Multi Core Speed 		484 Pts 507 Pts +5%
64-Core
Avg. Multi Core Speed 		378 Pts 433 Pts Faster 64-core speed.
+15%
Specifications 
Launch Date
Launch Date 		Q3'15 Q2'15
Cache
Cache 		6 MB SmartCache 4 MB
Recommended Price
Recommended Customer Price 		$242.00 - $243.00 $276.00 - $277.00
Max Turbo Frequency
Max Turbo Frequency 		3.9 GHz 3.6 GHz
Bus Speed
Bus Speed 		8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification 		PCG 2015D (130W) PCA 2013D
Max Memory Size
Max Memory Size (dependent on memory type) 		64 GB 32 GB
Memory Types
Memory Types 		DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR3L-1333/1600 @ 1.5V
Memory Bandwidth
Max Memory Bandwidth 		34.1 GB/s 25.6 GB/s
Processor Graphics
Processor Graphics ‡ 		Intel® HD Graphics 530 Intel® Iris™ Pro Graphics 6200
Graphics Base Frequency
Graphics Base Frequency 		350 MHz 300 MHz
Graphics Output
Graphics Output 		eDP/DP/HDMI/DVI eDP/DP/HDMI/DVI/VGA
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.15 GHz 1.1 GHz
Graphics Video Max Memory
Graphics Video Max Memory 		64 GB 32 GB
Small Business Advantage
Intel® Small Business Advantage 		Yes No

More specs » More specs »
Conclusion 
Average Bench 72.4%
Average Bench 81.5%
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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 raw CPU tests don't reflect its performance with games, specially, thanks to its rare gem of an 128MB L4 cache, [Nov '19 Maringaense]

MORE DETAILS

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We calculate effective speed which measures real world performance for typical 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]

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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 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 value for money 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
  • - SkillBench (space shooter) tests user input accuracy
  • - 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

 Frequently Asked Questions

Processors FAQ
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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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