COMPARE
Today's hottest
Amazon Ebay
deals
CPU
RANKINGS
TEST
YOUR CPU
ADD TO PC
BUILD
IntelBX80677I57600T
IntelBX80684I99900K
▲ 5122 ▼
  

4 Cores, 4 Threads @2.80 GHz, Kaby Lake.
Release date ≈ Q1 2017.

VS
▲ 8515,029 ▼

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

Effective Speed 
+30%
Real World Speed
Performance profile from 354,700 user samples
Benchmark your CPU here
477 User Benchmarks
Best Bench: 85% Base clock 2.8 GHz, turbo 3.5 GHz (avg)
Worst Bench: 54% Base clock 0.8 GHz, turbo 0.8 GHz (avg)
Poor: 54% Great: 85%
SPEED RANK: 324th / 1468
Gaming
Gaming 75%
Battleship
Desktop
Desktop 79%
Battleship
Workstation
Workstation 57%
Gunboat
354,223 User Benchmarks
Best Bench: 104% Base clock 3.6 GHz, turbo 5.2 GHz (avg)
Worst Bench: 89% Base clock 3.6 GHz, turbo 1.3 GHz (avg)
Poor: 89% Great: 104%
SPEED RANK: 105th / 1468
Gaming
Gaming 98%
Nuclear submarine
Desktop
Desktop 98%
Nuclear submarine
Workstation
Workstation 97%
Nuclear submarine
Effective Speed
Effective CPU Speed 		75.1 % 97.9 % Much faster effective speed.
+30%
Average Score 
+53%
Memory
Avg. Memory Latency 		82 Pts 93.1 Pts Lower memory latency.
+14%
1-Core
Avg. Single Core Speed 		106 Pts 142 Pts Much faster single-core speed.
+34%
2-Core
Avg. Dual Core Speed 		209 Pts 281 Pts Much faster dual-core speed.
+34%
4-Core
Avg. Quad Core Speed 		393 Pts 551 Pts Much faster quad-core speed.
+40%
8-Core
Avg. Octa Core Speed 		402 Pts 981 Pts Hugely faster octa-core speed.
+144%
Overclocked Score 
+49%
Memory
OC Memory Latency 		92.6 Pts 97.2 Pts +5%
1-Core
OC Single Core Speed 		119 Pts 153 Pts Faster OC single-core speed.
+29%
2-Core
OC Dual Core Speed 		233 Pts 305 Pts Much faster OC dual-core speed.
+31%
4-Core
OC Quad Core Speed 		454 Pts 604 Pts Much faster OC quad-core speed.
+33%
8-Core
OC Octa Core Speed 		454 Pts 1,116 Pts Hugely faster OC octa-core speed.
+146%
Value & Sentiment 
+5,533%
Market Share
Based on 69,002,502 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 1.11 % Insanely higher market share.
+11,000%
User Rating
UBM User Rating 		51 % 85 % Much more popular.
+67%
Nice To Haves 
+177%
Age
Newest 		92+ Months 72 Months More recent.
+22%
64-Core
OC Multi Core Speed 		455 Pts 1,590 Pts Hugely faster OC 64-core speed.
+249%
64-Core
Avg. Multi Core Speed 		402 Pts 1,451 Pts Hugely faster 64-core speed.
+261%
Specifications 
Launch Date
Launch Date 		Q1'17 Q4'18
Cache
Cache 		6 MB 16 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX 2.0 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Recommended Price
Recommended Customer Price 		$213.00 - $224.00 $488.00 - $499.00
Max Turbo Frequency
Max Turbo Frequency 		3.70 GHz 5.00 GHz
Thermal Solution Specification
Thermal Solution Specification 		PCG 2015A (35W) PCG 2015D (130W)
Memory Types
Memory Types 		DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V DDR4-2666
Processor Graphics
Processor Graphics ‡ 		Intel® HD Graphics 630 Intel® UHD Graphics 630
Graphics Base Frequency
Graphics Base Frequency 		350.00 MHz 350 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.10 GHz 1.20 GHz

More specs » More specs »
Conclusion 
Average Bench 75.1%
Average Bench 97.9%

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

User Builds 
477
354,223
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 i5-12600K $159Nvidia RTX 4060 $280WD Black SN850X M.2 2TB $135
Intel Core i5-13600K $210Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $84
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $370
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