COMPARE
CPU
RANKINGS
TEST
YOUR CPU
ADD TO PC
BUILD
Intel
IntelBX80662I56600K
▲ 5023 ▼
  

4 Cores, 8 Threads.
Release date ≈ Q4 2020.

VS
▲ 7428,950 ▼

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

Effective Speed 
+9%
Real World Speed
Performance profile from 342,539 user samples
Benchmark your CPU here
295 User Benchmarks
Best Bench: 75% Base clock 1.8 GHz, turbo 3.5 GHz (avg)
Worst Bench: 53% Base clock 1.8 GHz, turbo 1.6 GHz (avg)
Poor: 53% Great: 75%
SPEED RANK: 482nd / 1456
Gaming
Gaming 66%
Battle cruiser
Desktop
Desktop 74%
Battleship
Workstation
Workstation 55%
Gunboat
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: 363rd / 1456
Gaming
Gaming 72%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 55%
Yacht
Effective Speed
Effective CPU Speed 		66.3 % 72.4 % Slightly faster effective speed.
+9%
Average Score 
+8%
Memory
Avg. Memory Latency 		64.6 Pts 83.3 Pts Lower memory latency.
+29%
1-Core
Avg. Single Core Speed 		127 Pts Faster single-core speed.
+15% 		110 Pts
2-Core
Avg. Dual Core Speed 		232 Pts Slightly faster dual-core speed.
+6% 		218 Pts
4-Core
Avg. Quad Core Speed 		370 Pts Slightly faster quad-core speed.
+5% 		352 Pts
8-Core
Avg. Octa Core Speed 		528 Pts Much faster octa-core speed.
+42% 		373 Pts
Overclocked Score 
+2%
Memory
OC Memory Latency 		71.8 Pts 95.2 Pts Much lower OC memory latency.
+33%
1-Core
OC Single Core Speed 		148 Pts Slightly faster OC single-core speed.
+9% 		136 Pts
2-Core
OC Dual Core Speed 		288 Pts Slightly faster OC dual-core speed.
+7% 		269 Pts
4-Core
OC Quad Core Speed 		443 Pts 455 Pts +3%
8-Core
OC Octa Core Speed 		615 Pts Faster OC octa-core speed.
+29% 		476 Pts
Value & Sentiment 
+∞%
Market Share
Based on 68,124,229 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.49 % Insanely higher market share.
+∞%
User Rating
UBM User Rating 		50 % 74 % Much more popular.
+48%
Nice To Haves 
+41%
Age
Newest 		41+ Months Much more recent.
+61% 		106 Months
64-Core
OC Multi Core Speed 		614 Pts Faster OC 64-core speed.
+27% 		484 Pts
64-Core
Avg. Multi Core Speed 		515 Pts Much faster 64-core speed.
+36% 		378 Pts
Conclusion 
Average Bench 66.3%
Average Bench 72.4%
ADVERTISEMENT

11th Gen i5 with 4C 8T. Base clock of 1.8Ghz, turbo up to 4Ghz. Even with TDP of 15W, single core can evenly match up with 45W gaming purpose H series CPU, thanks to it's 8mb catch. However, multicore is it's weak point. With Iris G7 iGPU, this CPU can handle Android emulator games with about 40~60 fps. If you are looking for a cheap, nice and quiet emulator machine, this one could be an option. [Oct '21 Gamejang]

MORE DETAILS

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

User Builds 
295
342,244
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Processor Rankings (Price vs Performance) June 2024 CPU Rankings

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]

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 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.

UserBenchmark of the month

Gaming Desktop ProGaming

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
AMD vs Intel: Gaming performance 2012-2021
How does IPC compare between AMD's Ryzen and Intel's Kaby Lake?
What is multi core mixed speed?
What is multi core integer speed?
What is multi core floating point speed?
What is single core mixed CPU speed?
What is quad core mixed CPU speed?
What is quad core floating point speed?
What is quad core integer speed?
What is single core floating point speed?
What is single core integer speed?
What is the GeekBench single core score?
What is a CPU?
What is the effective CPU speed index?
What is overclocking?
What is thermal design power (TDP)?
ALL FAQs »

 Best User Rated
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark popular with users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $160Nvidia RTX 4060 $290WD Black SN850X M.2 2TB $150
Intel Core i5-13600K $260Nvidia RTX 4060-Ti $388WD Black SN850X M.2 1TB $79
Intel Core i5-12400F $110Nvidia RTX 4070 $520Crucial T700 M.2 4TB $363
Today's hottest
Amazon Ebay
deals
If you buy something via a price link, UserBenchmark may earn a commission
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback