IntelBX80684I99900K
IntelBX80662I56600K

8 Cores, 16 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2018.

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About

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

Real World Speed
Performance profile from 290,827 user samples
81,545 User Benchmarks
Best Bench: 110% Base clock 3.6 GHz, turbo 5.1 GHz (avg)
Worst Bench: 79% Base clock 3.6 GHz, turbo 1.6 GHz (avg)
Poor: 79% Great: 110%
SPEED RANK: 1st / 1182
Gaming
Gaming 100%
UFO
Desktop
Desktop 100%
UFO
Workstation
Workstation 100%
Nuclear submarine
209,282 User Benchmarks
Best Bench: 86% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 46% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 46% Great: 86%
SPEED RANK: 98th / 1182
Gaming
Gaming 68%
Battle cruiser
Desktop
Desktop 79%
Battleship
Workstation
Workstation 42%
Speed boat
Effective Speed
Effective CPU Speed
100 % Much faster effective speed.
+47%
67.9 %
1-Core
Avg. Single Core Mixed Speed
143 Pts Faster single-core speed.
+23%
116 Pts
2-Core
Avg. Dual Core Mixed Speed
286 Pts Faster dual-core speed.
+25%
229 Pts
4-Core
Avg. Quad Core Mixed Speed
563 Pts Much faster quad-core speed.
+33%
422 Pts
8-Core
Avg. Octa Core Mixed Speed
1046 Pts Hugely faster octa-core speed.
+143%
430 Pts
64-Core
Avg. Multi Core Mixed Speed
1491 Pts Hugely faster 64-core speed.
+244%
433 Pts
1-Core
OC Single Core Mixed Speed
155 Pts Slightly faster OC single-core speed.
+11%
140 Pts
2-Core
OC Dual Core Mixed Speed
310 Pts Slightly faster OC dual-core speed.
+11%
279 Pts
4-Core
OC Quad Core Mixed Speed
618 Pts Slightly faster OC quad-core speed.
+14%
541 Pts
8-Core
OC Octa Core Mixed Speed
1205 Pts Hugely faster OC octa-core speed.
+124%
539 Pts
64-Core
OC Multi Core Mixed Speed
1652 Pts Hugely faster OC 64-core speed.
+205%
542 Pts
Market Share
Based on 20,343,420 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.08 % Much higher market share.
+30%
0.83 %
Value
Value For Money
85.9 % Better value.
+17%
73.4 %
User Rating
UBM User Rating
133 % Hugely more popular.
+105%
65 %
Price
Price (score)
$484 $210 Much cheaper.
+57%
Age
Newest
11 Months Much more recent.
+78%
49 Months
TDP
Thermal Design Power (TDP)
95 Watts 91 Watts +4%
Cores
CPU Processing Cores
8 cores Hugely higher core count.
+100%
4 cores
Threads
CPU Processing Threads
16 threads Hugely higher thread count.
+300%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz +3% 3.5 GHz
Turbo Clock
Turbo Clock Speed
5 GHz Faster turbo frequency.
+28%
3.9 GHz
Series
CPU Architecture
Coffee Lake Skylake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 HD 530
Launch Date
Launch Date
Q4'18 Q3'15
Cache
Cache
16 MB SmartCache 6 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX 2.0
Recommended Price
Recommended Customer Price
$488.00 - $499.00 $242.00 - $243.00
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
1.20 GHz 1.15 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No

More specs » More specs »
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The Intel i9-9900K is an 8 core, 16 thread, unlocked 9th generation Coffee Lake processor. It has a base / boost clocks of 3.6 / 4.7 GHz and a single-core boost of 5.0 GHz (the highest frequency achieved yet from this class of Intel CPU). It features 16 MB of cache, a 95W TDP and Intel UHD 630 graphics. The 9900K is compatible with the new Z390 chipset, and subject to a BIOS update, is also compatible with the older Z370 chipset. Aimed at users who do not wish to compromise, the i9-9900K offers the best gaming and desktop experience available at any price. Heavy workstation users should consider the Ryzen 9 3900X which is similarly priced. Comparing the overclocked 3900X shows that it is just 10% worse for gaming and desktop (sub octa-core) but around 40% better for 64-core computations. Gamers should consider the 9700K which offers identical overclocked gaming performance at a $100 USD discount. [Oct '18 CPUPro]

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

Processor Rankings (Price vs Performance) September 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.

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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.
  • - 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.
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  • - Share your opinion by voting.

 Frequently Asked Questions

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The Best.
CPUGPUSSD
Intel Core i5-9400F $140Nvidia GTX 1660 $220Samsung 850 Evo 250GB $70
Intel Core i5-9600K $225Nvidia GTX 1660-Ti $275Samsung 850 Evo 500GB $90
Intel Core i7-9700K $350Nvidia RTX 2060S (Super) $429Samsung 850 Pro 256GB $230
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $37G.SKILL Trident Z DDR4 3200 C14 4x16GB $799SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $64Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 16GB $24
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