IntelBX80684I99900K
IntelBX80673I79800X

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

8 Cores, 16 Threads @3.80 GHz, Skylake.
Release date ≈ Q4 2018.

Real World Speed
Performance profile from 296,664 user samples
294,537 User Benchmarks
Best Bench: 105% Base clock 3.6 GHz, turbo 5.2 GHz (avg)
Worst Bench: 88% Base clock 3.6 GHz, turbo 0.8 GHz (avg)
Poor: 88% Great: 105%
SPEED RANK: 9th / 1276
Gaming
Gaming 99%
Nuclear submarine
Desktop
Desktop 99%
Nuclear submarine
Workstation
Workstation 98%
Nuclear submarine
2,127 User Benchmarks
Best Bench: 96% Base clock 3.8 GHz, turbo 4.95 GHz (avg)
Worst Bench: 75% Base clock 3.8 GHz, turbo 3.8 GHz (avg)
Poor: 75% Great: 96%
SPEED RANK: 83rd / 1276
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 86%
Aircraft carrier
Effective Speed
Effective CPU Speed
98.6 % Faster effective speed.
+17%
84.6 %
Memory
Avg. Memory Latency
93.4 Pts Lower memory latency.
+20%
77.8 Pts
1-Core
Avg. Single Core Mixed Speed
143 Pts Faster single-core speed.
+13%
127 Pts
2-Core
Avg. Dual Core Mixed Speed
284 Pts Faster dual-core speed.
+12%
253 Pts
4-Core
Avg. Quad Core Mixed Speed
556 Pts Faster quad-core speed.
+14%
489 Pts
8-Core
Avg. Octa Core Mixed Speed
1022 Pts Faster octa-core speed.
+14%
900 Pts
Memory
OC Memory Latency
97.5 Pts Lower OC memory latency.
+11%
88.2 Pts
1-Core
OC Single Core Mixed Speed
154 Pts Slightly faster OC single-core speed.
+7%
144 Pts
2-Core
OC Dual Core Mixed Speed
308 Pts Slightly faster OC dual-core speed.
+7%
289 Pts
4-Core
OC Quad Core Mixed Speed
613 Pts Slightly faster OC quad-core speed.
+6%
576 Pts
8-Core
OC Octa Core Mixed Speed
1191 Pts Slightly faster OC octa-core speed.
+10%
1083 Pts
Market Share
Based on 36,428,812 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.63 % Insanely higher market share.
+8,050%
0.02 %
Value
Value For Money
93.3 % Better value.
+22%
76.7 %
User Rating
UBM User Rating
161 % Hugely more popular.
+216%
51 %
Price
Price (score)
$339 Cheaper.
+14%
$396
Age
Newest
25 Months 23+ Months Slightly more recent.
+8%
64-Core
OC Multi Core Mixed Speed
1618 Pts Slightly faster OC 64-core speed.
+6%
1526 Pts
64-Core
Avg. Multi Core Mixed Speed
1463 Pts Faster 64-core speed.
+12%
1312 Pts
Cache
Cache
16 MB SmartCache 16.5 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Recommended Price
Recommended Customer Price
$488.00 - $499.00 N/A
Max Turbo Frequency
Max Turbo Frequency
5.00 GHz 4.40 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2017X
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 128 GB
Memory Channels
Max # of Memory Channels
2 4
Max # of PCI Express Lanes
Max # of PCI Express Lanes
16 44

More specs » More specs »
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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

really strange because have 8 core  [Dec '19 Viper207]

MORE DETAILS

Processor Rankings (Price vs Performance) December 2020 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]

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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 freeware 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 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.
  • - 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.
  • - Share your opinion by voting.

 Frequently Asked Questions

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HDDRAMUSB
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WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $639SanDisk Ultra Fit 32GB $16
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