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IntelBX80677I77740X
IntelBX80684I99900K
▲ 53240 ▼

4 Cores, 8 Threads @4.30 GHz, Kaby Lake.
Release date ≈ Q3 2017.

VS
▲ 8614,934 ▼

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

Effective Speed 
+13%
Real World Speed
Performance profile from 359,317 user samples
Benchmark your CPU here
5,094 User Benchmarks
Best Bench: 96% Base clock 4.3 GHz, turbo 5.15 GHz (avg)
Worst Bench: 74% Base clock 4.3 GHz, turbo 1 GHz (avg)
Poor: 74% Great: 96%
SPEED RANK: 160th / 1442
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 74%
Battleship
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: 90th / 1442
Gaming
Gaming 98%
Nuclear submarine
Desktop
Desktop 98%
Nuclear submarine
Workstation
Workstation 97%
Nuclear submarine
Effective Speed
Effective CPU Speed 		87 % 97.9 % Faster effective speed.
+13%
Average Score 
+17%
Memory
Avg. Memory Latency 		90.5 Pts 93.1 Pts +3%
1-Core
Avg. Single Core Speed 		133 Pts 142 Pts Slightly faster single-core speed.
+7%
2-Core
Avg. Dual Core Speed 		252 Pts 281 Pts Faster dual-core speed.
+12%
4-Core
Avg. Quad Core Speed 		451 Pts 551 Pts Faster quad-core speed.
+22%
8-Core
Avg. Octa Core Speed 		699 Pts 981 Pts Much faster octa-core speed.
+40%
Overclocked Score 
+11%
Memory
OC Memory Latency 		96.7 Pts 97.2 Pts +1%
1-Core
OC Single Core Speed 		151 Pts 153 Pts +1%
2-Core
OC Dual Core Speed 		293 Pts 305 Pts +4%
4-Core
OC Quad Core Speed 		532 Pts 604 Pts Faster OC quad-core speed.
+14%
8-Core
OC Octa Core Speed 		819 Pts 1116 Pts Much faster OC octa-core speed.
+36%
Value & Sentiment 
+1,420%
Market Share
Based on 67,714,166 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.02 % 1.15 % Insanely higher market share.
+5,650%
Value
Value For Money 		86.8 % 87.9 % +1%
User Rating
UBM User Rating 		53 % 86 % Much more popular.
+62%
Price
Price (score) 		$281 Much cheaper.
+32% 		$412
Nice To Haves 
+72%
Age
Newest 		81+ Months 66 Months More recent.
+19%
64-Core
OC Multi Core Speed 		824 Pts 1590 Pts Hugely faster OC 64-core speed.
+93%
64-Core
Avg. Multi Core Speed 		710 Pts 1451 Pts Hugely faster 64-core speed.
+104%
Specifications 
Launch Date
Launch Date 		Q2'17 Q4'18
Cache
Cache 		8 MB 16 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX2 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Recommended Price
Recommended Customer Price 		$339.00 - $350.00 $488.00 - $499.00
Max Turbo Frequency
Max Turbo Frequency 		4.50 GHz 5.00 GHz
Thermal Solution Specification
Thermal Solution Specification 		PCG 2017X PCG 2015D (130W)
Processor Graphics
Processor Graphics ‡ 		None Intel® UHD Graphics 630

More specs » More specs »
Conclusion 
Average Bench 87%
Average Bench 97.9%
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Kaby Lake-X CPUs is probably one of the Intel's most embarrassing release ever for their HEDT platform. Requires X299 motherboard and only offered 16 PCIe lanes whilst being only little better than i7-7700K. [Oct '19 ColdSpy]

MORE DETAILS

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

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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]

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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.

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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?
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ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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