IntelBX80684I99900KS
Intel
  

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

4 Cores, 8 Threads @2.8 GHz, Bloomfield.
Release date ≤ Q1 2014.

Real World Speed
Performance profile from 18,613 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: 88th / 1456
Gaming
Gaming 99%
Nuclear submarine
Desktop
Desktop 100%
Nuclear submarine
Workstation
Workstation 99%
Nuclear submarine
5,773 User Benchmarks
Best Bench: 71% Base clock 2.8 GHz, turbo 2.9 GHz (avg)
Worst Bench: 56% Base clock 2.8 GHz, turbo 2.9 GHz (avg)
Poor: 56% Great: 71%
SPEED RANK: 520th / 1456
Gaming
Gaming 65%
Destroyer
Desktop
Desktop 67%
Battle cruiser
Workstation
Workstation 48%
Yacht
Effective Speed
Effective CPU Speed
98.8 % Much faster effective speed.
+53%
64.6 %
Memory
Avg. Memory Latency
92.8 Pts Slightly lower memory latency.
+9%
85 Pts
1-Core
Avg. Single Core Speed
147 Pts Hugely faster single-core speed.
+105%
71.8 Pts
2-Core
Avg. Dual Core Speed
289 Pts Hugely faster dual-core speed.
+109%
138 Pts
4-Core
Avg. Quad Core Speed
563 Pts Hugely faster quad-core speed.
+125%
250 Pts
8-Core
Avg. Octa Core Speed
1016 Pts Hugely faster octa-core speed.
+233%
305 Pts
Memory
OC Memory Latency
97.7 Pts Slightly lower OC memory latency.
+5%
92.8 Pts
1-Core
OC Single Core Speed
155 Pts Hugely faster OC single-core speed.
+103%
76.5 Pts
2-Core
OC Dual Core Speed
308 Pts Hugely faster OC dual-core speed.
+108%
148 Pts
4-Core
OC Quad Core Speed
614 Pts Hugely faster OC quad-core speed.
+109%
294 Pts
8-Core
OC Octa Core Speed
1148 Pts Hugely faster OC octa-core speed.
+212%
368 Pts
Market Share
Based on 68,137,816 CPUs tested
Market Share
Market Share (trailing 30 days)
0.02 % Insanely higher market share.
+∞%
0 %
User Rating
UBM User Rating
56 % Slightly more popular.
+10%
51 %
Age
Newest
56+ Months Much more recent.
+55%
125+ Months
64-Core
OC Multi Core Speed
1664 Pts Hugely faster OC 64-core speed.
+352%
368 Pts
64-Core
Avg. Multi Core Speed
1531 Pts Hugely faster 64-core speed.
+399%
307 Pts
Launch Date
Launch Date
Q4'19 Q1'10
Cache
Cache
16 MB Intel® Smart Cache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.2
Lithography
Lithography
14 nm 45 nm
Max Turbo Frequency
Max Turbo Frequency
5.00 GHz 3.06 GHz
Bus Speed
Bus Speed
8 GT/s 4.8 GT/s QPI
Max Memory Size
Max Memory Size (dependent on memory type)
128 GB 24 GB
Memory Types
Memory Types
DDR4-2666 DDR3 800/1066
Memory Channels
Max # of Memory Channels
2 3
Memory Bandwidth
Max Memory Bandwidth
41.6 GB/s 25.6 GB/s
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Package Size
Package Size
37.5mm x 37.5mm 42.5mm x 45.0mm
Thermal Monitoring Technologies
Thermal Monitoring Technologies
Yes No
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2 1.0
AES New Instructions
Intel® AES New Instructions
Yes No

More specs » More specs »
ADVERTISEMENT

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) June 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]

ADVERTISEMENT

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 popular with 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 $166Nvidia RTX 4060 $293WD Black SN850X M.2 2TB $150
Intel Core i5-13600K $260Nvidia RTX 4060-Ti $388WD Black SN850X M.2 1TB $79
Intel Core i5-12400F $110Nvidia RTX 4070 $520Crucial T700 M.2 4TB $353
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