COMPARE
Today's hottest
Amazon Ebay
deals
CPU
RANKINGS
TEST
YOUR CPU
ADD TO PC
BUILD
IntelCL8068404069006
IntelBX80684I99900KS
▲ 53295 ▼
  

8 Cores, 16 Threads @2.30 GHz, 45 W.
Release date ≈ Q1 2019.

VS
▲ 573,638 ▼
  

8 Cores, 16 Threads @4.00 GHz, 127 W.
Release date ≈ Q4 2019.

Effective Speed 
+25%
Real World Speed
Performance profile from 23,935 user samples
Benchmark your CPU here
11,095 User Benchmarks
Best Bench: 90% Base clock 2.3 GHz, turbo 3.95 GHz (avg)
Worst Bench: 56% Base clock 2.3 GHz, turbo 0.8 GHz (avg)
Poor: 56% Great: 90%
SPEED RANK: 271st / 1468
Gaming
Gaming 79%
Battleship
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 73%
Battleship
12,840 User Benchmarks
Best Bench: 105% Base clock 4 GHz, turbo 5.1 GHz (avg)
Worst Bench: 89% Base clock 4 GHz, turbo 5 GHz (avg)
Poor: 89% Great: 105%
SPEED RANK: 99th / 1468
Gaming
Gaming 99%
Nuclear submarine
Desktop
Desktop 100%
Nuclear submarine
Workstation
Workstation 99%
Nuclear submarine
Effective Speed
Effective CPU Speed 		78.9 % 98.8 % Faster effective speed.
+25%
Average Score 
+31%
Memory
Avg. Memory Latency 		81.7 Pts 92.8 Pts Lower memory latency.
+14%
1-Core
Avg. Single Core Speed 		114 Pts 147 Pts Faster single-core speed.
+29%
2-Core
Avg. Dual Core Speed 		219 Pts 289 Pts Much faster dual-core speed.
+32%
4-Core
Avg. Quad Core Speed 		411 Pts 563 Pts Much faster quad-core speed.
+37%
8-Core
Avg. Octa Core Speed 		697 Pts 1,016 Pts Much faster octa-core speed.
+46%
Overclocked Score 
+16%
Memory
OC Memory Latency 		92.3 Pts 97.7 Pts Slightly lower OC memory latency.
+6%
1-Core
OC Single Core Speed 		136 Pts 155 Pts Faster OC single-core speed.
+14%
2-Core
OC Dual Core Speed 		265 Pts 308 Pts Faster OC dual-core speed.
+16%
4-Core
OC Quad Core Speed 		507 Pts 614 Pts Faster OC quad-core speed.
+21%
8-Core
OC Octa Core Speed 		936 Pts 1,148 Pts Faster OC octa-core speed.
+23%
Value & Sentiment 
+54%
Market Share
Based on 69,023,765 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.03 % 0.06 % Hugely higher market share.
+100%
User Rating
UBM User Rating 		53 % 57 % Slightly more popular.
+8%
Nice To Haves 
+37%
Age
Newest 		67+ Months 61+ Months Slightly more recent.
+9%
64-Core
OC Multi Core Speed 		1,209 Pts 1,664 Pts Much faster OC 64-core speed.
+38%
64-Core
Avg. Multi Core Speed 		924 Pts 1,531 Pts Much faster 64-core speed.
+66%
Specifications 
Launch Date
Launch Date 		Q2'19 Q4'19
Cache
Cache 		16 MB SmartCache 16 MB Intel® Smart Cache
Max Turbo Frequency
Max Turbo Frequency 		4.80 GHz 5.00 GHz
Bus Speed
Bus Speed 		8 GT/s DMI 8 GT/s
Memory Types
Memory Types 		DDR4-2666, LPDDR3-2133 DDR4-2666
Memory Bandwidth
Max Memory Bandwidth 		41.8 GB/s 41.6 GB/s
Package Size
Package Size 		42mm x 28mm 37.5mm x 37.5mm
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		2.0 2
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP) 		Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		Yes No
PCI Express Revision
PCI Express Revision 		3.0 3

More specs » More specs »
Conclusion 
Average Bench 78.9%
Average Bench 98.8%

The low 2.3GHz base clock makes this CPU actually somewhat nice to use in the 2019 MacBook Pro 16”.  [May '23 Honque]

MORE DETAILS

The Intel's specially binned i9-9900K, featuring 5GHz all core boost and base clock of 4GHz. This CPU is one of the most powerful Intel CPU in term of day-to-day and gaming performance but with TDP of 127W, bulky air cooler or 240mm AIO is recommended to make sure the CPU doesn't overheat, and open loop liquid cooling if you want to OC. [Jun '20 ColdSpy]

MORE DETAILS

User Builds 
11,095
12,840
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) November 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]

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 the gold standard for users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-13600K $210Nvidia RTX 4060 $290WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $84
Intel Core i5-12600K $167Nvidia RTX 4070 $500Crucial T700 M.2 4TB $406
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