COMPARE
CPU
RANKINGS
TEST
YOUR CPU
ADD TO PC
BUILD
IntelBX8070110300
$143
IntelBX80662I56600K
▲ 52201 ▼
 $143 

4 Cores, 8 Threads @3.7GHz, Comet Lake.
Release date: Q2 2020.

VS
▲ 7428,945 ▼

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

Effective Speed 
+21%
Real World Speed
Performance profile from 342,635 user samples
Benchmark your CPU here
391 User Benchmarks
Best Bench: 95% Base clock 3.7 GHz, turbo 4.2 GHz (avg)
Worst Bench: 79% Base clock 3.7 GHz, turbo 4.2 GHz (avg)
Poor: 79% Great: 95%
SPEED RANK: 156th / 1445
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 74%
Battleship
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: 356th / 1445
Gaming
Gaming 72%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 55%
Yacht
Effective Speed
Effective CPU Speed 		87.4 % Faster effective speed.
+21% 		72.4 %
Average Score 
+32%
Memory
Avg. Memory Latency 		90.6 Pts Slightly lower memory latency.
+9% 		83.3 Pts
1-Core
Avg. Single Core Speed 		131 Pts Faster single-core speed.
+19% 		110 Pts
2-Core
Avg. Dual Core Speed 		251 Pts Faster dual-core speed.
+15% 		218 Pts
4-Core
Avg. Quad Core Speed 		454 Pts Faster quad-core speed.
+29% 		352 Pts
8-Core
Avg. Octa Core Speed 		699 Pts Hugely faster octa-core speed.
+87% 		373 Pts
Overclocked Score 
+16%
Memory
OC Memory Latency 		95.9 Pts +1% 95.2 Pts
1-Core
OC Single Core Speed 		139 Pts +2% 136 Pts
2-Core
OC Dual Core Speed 		274 Pts +2% 269 Pts
4-Core
OC Quad Core Speed 		528 Pts Faster OC quad-core speed.
+16% 		455 Pts
8-Core
OC Octa Core Speed 		747 Pts Much faster OC octa-core speed.
+57% 		476 Pts
Value & Sentiment 
+∞%
Market Share
Based on 67,947,471 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.47 % Insanely higher market share.
+∞%
Value
Value For Money 		105 % Better value.
+16% 		90.7 %
User Rating
UBM User Rating 		52 % 74 % Much more popular.
+42%
Price
Price (score) 		$143 $122 Cheaper.
+15%
Nice To Haves 
+38%
Age
Newest 		48 Months Much more recent.
+54% 		105 Months
TDP
Thermal Design Power (TDP) 		65 Watts More energy efficient.
+29% 		91 Watts
Cores
CPU Processing Cores 		4 cores 4 cores
Threads
CPU Processing Threads 		8 threads Hugely higher thread count.
+100% 		4 threads
Lithography
Manufacturing process 		14 nm 14 nm
Base Clock
Base Clock Speed 		3.7 GHz Slightly faster base frequency.
+6% 		3.5 GHz
Turbo Clock
Turbo Clock Speed 		4.4 GHz Faster turbo frequency.
+13% 		3.9 GHz
64-Core
OC Multi Core Speed 		746 Pts Much faster OC 64-core speed.
+54% 		484 Pts
64-Core
Avg. Multi Core Speed 		704 Pts Hugely faster 64-core speed.
+86% 		378 Pts
Specifications 
Series
CPU Architecture 		Comet Lake Skylake
Socket
Motherboard Socket 		FCLGA1200 FCLGA1151
Graphics
Integrated Graphics 		UHD 630 HD 530
Launch Date
Launch Date 		Q2'20 Q3'15
Cache
Cache 		8 MB Intel® Smart Cache 6 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX 2.0
Max Turbo Frequency
Max Turbo Frequency 		4.40 GHz 3.9 GHz
Bus Speed
Bus Speed 		8 GT/s 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification 		PCG 2015C PCG 2015D (130W)
Max Memory Size
Max Memory Size (dependent on memory type) 		128 GB 64 GB
Memory Types
Memory Types 		DDR4-2666 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Bandwidth
Max Memory Bandwidth 		41.6 GB/s 34.1 GB/s
Processor Graphics
Processor Graphics ‡ 		Intel® UHD Graphics 630 Intel® HD Graphics 530
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		2 2.0
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		Yes No
PCI Express Revision
PCI Express Revision 		3 3.0

More specs » More specs »
Conclusion 
Average Bench 87.4%
Average Bench 72.4%
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

User Builds 
391
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) May 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
The Best.
CPUGPUSSD
Intel Core i5-12600K $176Nvidia RTX 4060 $293Crucial MX500 250GB $39
Intel Core i5-12400F $124Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-13600K $260Nvidia RTX 4070 $549Samsung 870 Evo 250GB $45
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
If you make a purchase via one of these links, our site may earn a commission
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback