Today's hottest deals
IntelBX80684I99900KS
Intel
  

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

  

2 Cores, 4 Threads @2.9 GHz, Haswell.
Release date ≤ Q1 2014.

Real World Speed
Performance profile from 20,100 user samples
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
7,260 User Benchmarks
Best Bench: 66% Base clock 2.9 GHz, turbo 3.85 GHz (avg)
Worst Bench: 33% Base clock 2.9 GHz, turbo 0.35 GHz (avg)
Poor: 33% Great: 66%
SPEED RANK: 687th / 1468
Gaming
Gaming 56%
Gunboat
Desktop
Desktop 63%
Destroyer
Workstation
Workstation 40%
Speed boat
Effective Speed
Effective CPU Speed
98.8 % Much faster effective speed.
+77%
56 %
Memory
Avg. Memory Latency
92.8 Pts Lower memory latency.
+25%
74.5 Pts
1-Core
Avg. Single Core Speed
147 Pts Much faster single-core speed.
+75%
84.2 Pts
2-Core
Avg. Dual Core Speed
289 Pts Hugely faster dual-core speed.
+97%
147 Pts
4-Core
Avg. Quad Core Speed
563 Pts Hugely faster quad-core speed.
+157%
219 Pts
8-Core
Avg. Octa Core Speed
1,016 Pts Hugely faster octa-core speed.
+360%
221 Pts
Memory
OC Memory Latency
97.7 Pts Slightly lower OC memory latency.
+8%
90.7 Pts
1-Core
OC Single Core Speed
155 Pts Much faster OC single-core speed.
+52%
102 Pts
2-Core
OC Dual Core Speed
308 Pts Much faster OC dual-core speed.
+67%
184 Pts
4-Core
OC Quad Core Speed
614 Pts Hugely faster OC quad-core speed.
+128%
269 Pts
8-Core
OC Octa Core Speed
1,148 Pts Hugely faster OC octa-core speed.
+327%
269 Pts
Market Share
Based on 69,023,636 CPUs tested
Market Share
Market Share (trailing 30 days)
0.06 % Hugely higher market share.
+200%
0.02 %
User Rating
UBM User Rating
57 % Slightly more popular.
+10%
52 %
Age
Newest
61+ Months Much more recent.
+53%
129+ Months
64-Core
OC Multi Core Speed
1,664 Pts Hugely faster OC 64-core speed.
+519%
269 Pts
64-Core
Avg. Multi Core Speed
1,531 Pts Hugely faster 64-core speed.
+583%
224 Pts
Launch Date
Launch Date
Q4'19 Q4'13
Cache
Cache
16 MB Intel® Smart Cache 4 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography
14 nm 22 nm
Max Turbo Frequency
Max Turbo Frequency
5.00 GHz 3.6 GHz
Bus Speed
Bus Speed
8 GT/s 5 GT/s DMI2
Max Memory Size
Max Memory Size (dependent on memory type)
128 GB 32 GB
Memory Types
Memory Types
DDR4-2666 DDR3L 1333/1600
Memory Bandwidth
Max Memory Bandwidth
41.6 GB/s 25.6 GB/s
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 4600
Graphics Base Frequency
Graphics Base Frequency
350 MHz 400 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.3 GHz
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 2 GB
Package Size
Package Size
37.5mm x 37.5mm 37.5mm x 37.5mm x 4.7mm
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2 2.0
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16, 2x8, 1x8+2x4 1x16 or 2x8 or 1x8 2x4

More specs » More specs »

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

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

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

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 deals
If you buy something via a price link, UserBenchmark may earn a commission
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback