COMPARE
Today's hottest
Amazon Ebay
deals
CPU
RANKINGS
TEST
YOUR CPU
ADD TO PC
BUILD
IntelBX8069510900X
IntelBX80684I99900KF
▲ 53181 ▼
  

10 Cores, 20 Threads @3.70 GHz, 165 W.
Release date ≈ Q4 2019.

VS
▲ 55844 ▼

8 Cores, 16 Threads @3.60 GHz, 95 W.
Release date ≈ Q2 2019.

Effective Speed 
+15%
Real World Speed
Performance profile from 56,587 user samples
Benchmark your CPU here
6,322 User Benchmarks
Best Bench: 94% Base clock 3.7 GHz, turbo 4.9 GHz (avg)
Worst Bench: 77% Base clock 3.7 GHz, turbo 1 GHz (avg)
Poor: 77% Great: 94%
SPEED RANK: 196th / 1463
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 93%
Nuclear submarine
50,265 User Benchmarks
Best Bench: 104% Base clock 3.6 GHz, turbo 5 GHz (avg)
Worst Bench: 90% Base clock 3.6 GHz, turbo 0.8 GHz (avg)
Poor: 90% Great: 104%
SPEED RANK: 102nd / 1463
Gaming
Gaming 98%
Nuclear submarine
Desktop
Desktop 98%
Nuclear submarine
Workstation
Workstation 97%
Nuclear submarine
Effective Speed
Effective CPU Speed 		85.1 % 97.8 % Faster effective speed.
+15%
Average Score 
+11%
Memory
Avg. Memory Latency 		76.1 Pts 93.1 Pts Lower memory latency.
+22%
1-Core
Avg. Single Core Speed 		130 Pts 142 Pts Slightly faster single-core speed.
+9%
2-Core
Avg. Dual Core Speed 		258 Pts 282 Pts Slightly faster dual-core speed.
+9%
4-Core
Avg. Quad Core Speed 		504 Pts 550 Pts Slightly faster quad-core speed.
+9%
8-Core
Avg. Octa Core Speed 		949 Pts 981 Pts +3%
Overclocked Score 
+7%
Memory
OC Memory Latency 		85.7 Pts 97.4 Pts Lower OC memory latency.
+14%
1-Core
OC Single Core Speed 		144 Pts 153 Pts Slightly faster OC single-core speed.
+6%
2-Core
OC Dual Core Speed 		285 Pts 305 Pts Slightly faster OC dual-core speed.
+7%
4-Core
OC Quad Core Speed 		571 Pts 605 Pts Slightly faster OC quad-core speed.
+6%
8-Core
OC Octa Core Speed 		1109 Pts 1114 Pts +0%
Value & Sentiment 
+182%
Market Share
Based on 68,644,325 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.05 % 0.23 % Hugely higher market share.
+360%
User Rating
UBM User Rating 		53 % 55 % +4%
Nice To Haves 
+16%
Age
Newest 		57+ Months More recent.
+12% 		65+ Months
64-Core
OC Multi Core Speed 		1909 Pts Faster OC 64-core speed.
+20% 		1594 Pts
64-Core
Avg. Multi Core Speed 		1679 Pts Faster 64-core speed.
+15% 		1457 Pts
Specifications 
Launch Date
Launch Date 		Q4'19 Q1'19
Cache
Cache 		19.25 MB Intel® Smart Cache 16 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Max Turbo Frequency
Max Turbo Frequency 		4.50 GHz 5.00 GHz
Thermal Solution Specification
Thermal Solution Specification 		PCG 2017X PCG 2015D (130W)
Max Memory Size
Max Memory Size (dependent on memory type) 		256 GB 128 GB
Memory Types
Memory Types 		DDR4-2933 DDR4-2666
Memory Channels
Max # of Memory Channels 		4 2
Memory Bandwidth
Max Memory Bandwidth 		94 GB/s 41.6 GB/s
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		2 2.0
PCI Express Revision
PCI Express Revision 		3 3.0
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		48 16

More specs » More specs »
Conclusion 
Average Bench 85.1%
Average Bench 97.8%

Released 25 November 2019, this Cascade Lake-X CPU is the refresh of i9-9900X. What got improved is pricing which is almost the half of the mentioned CPU and some mitigation against silicon and hardware level vulnerabilities. This CPU got improved base clock and boost clock, with each having 200MHz and 100MHz higher clock respectively. [Dec '19 ColdSpy]

MORE DETAILS

The iGPU-less i9-9900K. Comes with nearly same specs as original i9-9900K but without iGPU could be a better overclocker than the original ones and enthusiast gamers probably don't need iGPU when they have high end discrete GPU. [Dec '19 ColdSpy]

MORE DETAILS

User Builds 
6,322
50,265
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) September 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 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 $170Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $146
Intel Core i5-12400F $112Nvidia RTX 4060-Ti $375WD Black SN850X M.2 1TB $75
Intel Core i5-13600K $245Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
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