IntelBX80684I99900K
IntelBX80673I97900X

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

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About

10 Cores, 20 Threads @3.8GHz, Skylake-X.
Release date: Q2 2017.

Real World Speed
Performance profile from 83,781 user samples
75,767 User Benchmarks
Best Bench: 110% Base clock 3.6 GHz, turbo 5.3 GHz (avg)
Worst Bench: 83% Base clock 3.6 GHz, turbo 4.7 GHz (avg)
Poor: 83% Great: 110%
SPEED RANK: 1st / 1182
Gaming
Gaming 101%
UFO
Desktop
Desktop 101%
UFO
Workstation
Workstation 101%
UFO
8,014 User Benchmarks
Best Bench: 102% Base clock 3.3 GHz, turbo 4.9 GHz (avg)
Worst Bench: 73% Base clock 3.3 GHz, turbo 4 GHz (avg)
Poor: 73% Great: 102%
SPEED RANK: 22nd / 1182
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 99%
Nuclear submarine
Effective Speed
Effective CPU Speed
101 % Slightly faster effective speed.
+14%
88.7 %
1-Core
Avg. Single Core Mixed Speed
146 Pts Slightly faster single-core speed.
+15%
127 Pts
2-Core
Avg. Dual Core Mixed Speed
288 Pts Slightly faster dual-core speed.
+14%
252 Pts
4-Core
Avg. Quad Core Mixed Speed
568 Pts Slightly faster quad-core speed.
+14%
498 Pts
8-Core
Avg. Octa Core Mixed Speed
1063 Pts Slightly faster octa-core speed.
+10%
967 Pts
64-Core
Avg. Multi Core Mixed Speed
1510 Pts 1630 Pts Slightly faster 64-core speed.
+8%
1-Core
OC Single Core Mixed Speed
156 Pts Slightly faster OC single-core speed.
+8%
145 Pts
2-Core
OC Dual Core Mixed Speed
311 Pts Slightly faster OC dual-core speed.
+8%
288 Pts
4-Core
OC Quad Core Mixed Speed
619 Pts Slightly faster OC quad-core speed.
+8%
573 Pts
8-Core
OC Octa Core Mixed Speed
1219 Pts Slightly faster OC octa-core speed.
+7%
1138 Pts
64-Core
OC Multi Core Mixed Speed
1661 Pts 1910 Pts Slightly faster OC 64-core speed.
+15%
Market Share
Based on 19,452,676 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.37 % Insanely higher market share.
+2,640%
0.05 %
Value
Value For Money
87 % Much better value.
+38%
62.9 %
User Rating
UBM User Rating
120 % Hugely more popular.
+90%
63 %
Price
Price (score)
$479 Much cheaper.
+51%
$969
Age
Newest
10 Months Much more recent.
+60%
25 Months
TDP
Thermal Design Power (TDP)
95 Watts Much more energy efficient.
+32%
140 Watts
Cores
CPU Processing Cores
8 cores 10 cores Higher core count.
+25%
Threads
CPU Processing Threads
16 threads 20 threads Higher thread count.
+25%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz 3.8 GHz Slightly faster base frequency.
+6%
Turbo Clock
Turbo Clock Speed
5 GHz Faster turbo frequency.
+16%
4.3 GHz
Series
CPU Architecture
Coffee Lake Skylake-X
Socket
Motherboard Socket
FCLGA1151 LGA2066
Graphics
Integrated Graphics
UHD 630 None
Launch Date
Launch Date
Q4'18 Q2'17
Cache
Cache
16 MB SmartCache 13.75 MB L3
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX2, AVX-512
Recommended Price
Recommended Customer Price
$488.00 - $499.00 $989.00 - $999.00
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

Intel’s core i9-7900X, from the Skylake-X series, is Intel’s latest 10-core, 20-thread flagship processor. It's the first to bear the i9 moniker and utilize the new X299 (Basin Falls) chipset/motherboard. The 7900X is the fastest CPU on the market today, however, imminent competition from AMD’s 16-core, 32-thread Ryzen Threadripper CPUs and the forthcoming release of more Intel Core X series mean that its reign will be a short one. The i9-7900X supersedes the 10-core Broadwell-E core i7-6950X that held the crown for little over a year. Both are extremely powerful and pricey high end desktop processors (HEDTs) which excel in multi-threaded tasks such as media encoding. However, despite the same power draw (TDP 140W), the newer i9-7900X betters the i7-6950X in terms of peak overclocked performance by 10% mostly thanks to increased clock speeds from 3.0GHz/4.0GHz to 3.3GHz/4.3GHz for base/turbo. It also betters the i7-6950X on price by around 28%. This all translates to the i9-7900X offering around 20% more value for money, even despite its eye-watering $999 price tag. The more accessible pricing (albeit not accessible for the majority) and hurried release of the i9-7900k to market is widely perceived as a reaction to AMD’s Ryzen Threadripper CPUs, rumoured for release towards the end of July 2017. So if you want to own the fastest consumer CPU in the world, it would be wise to wait for the dust to settle. [Jul '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) August 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical gamers and desktop users. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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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