IntelBX8070110400
IntelBX80662I56600K

6 Cores, 12 Threads @2.9GHz, Comet Lake.
Release date: Q2 2020.

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

Real World Speed
Performance profile from 414,048 user samples
71,804 User Benchmarks
Best Bench: 91% Base clock 2.9 GHz, turbo 4 GHz (avg)
Worst Bench: 69% Base clock 2.9 GHz, turbo 0.45 GHz (avg)
Poor: 69% Great: 91%
SPEED RANK: 186th / 1443
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 76%
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 / 1443
Gaming
Gaming 72%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 55%
Yacht
Effective Speed
Effective CPU Speed
84.5 % Faster effective speed.
+17%
72.4 %
Memory
Avg. Memory Latency
86.6 Pts +4% 83.3 Pts
1-Core
Avg. Single Core Speed
119 Pts Slightly faster single-core speed.
+8%
110 Pts
2-Core
Avg. Dual Core Speed
232 Pts Slightly faster dual-core speed.
+6%
218 Pts
4-Core
Avg. Quad Core Speed
443 Pts Faster quad-core speed.
+26%
352 Pts
8-Core
Avg. Octa Core Speed
722 Pts Hugely faster octa-core speed.
+94%
373 Pts
Memory
OC Memory Latency
95.4 Pts +0% 95.2 Pts
1-Core
OC Single Core Speed
125 Pts 136 Pts Slightly faster OC single-core speed.
+9%
2-Core
OC Dual Core Speed
247 Pts 269 Pts Slightly faster OC dual-core speed.
+9%
4-Core
OC Quad Core Speed
488 Pts Slightly faster OC quad-core speed.
+7%
455 Pts
8-Core
OC Octa Core Speed
776 Pts Much faster OC octa-core speed.
+63%
476 Pts
Market Share
Based on 67,835,933 CPUs tested
Market Share
Market Share (trailing 30 days)
0.61 % Much higher market share.
+33%
0.46 %
Value
Value For Money
112 % Better value.
+26%
89.2 %
User Rating
UBM User Rating
86 % More popular.
+16%
74 %
Price
Price (score)
$99 Cheaper.
+24%
$130
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
6 cores Much higher core count.
+50%
4 cores
Threads
CPU Processing Threads
12 threads Hugely higher thread count.
+200%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
2.9 GHz 3.5 GHz Faster base frequency.
+21%
Turbo Clock
Turbo Clock Speed
4.3 GHz Faster turbo frequency.
+10%
3.9 GHz
64-Core
OC Multi Core Speed
979 Pts Hugely faster OC 64-core speed.
+102%
484 Pts
64-Core
Avg. Multi Core Speed
912 Pts Hugely faster 64-core speed.
+141%
378 Pts
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
12 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
4.30 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
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.10 GHz 1.15 GHz
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 »
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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

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]

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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.

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
  • - 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

 Best User Rated

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