10 Cores, 20 Threads @3.7GHz, Comet Lake.
Release date: Q2 2020.


2 Cores, 2 Threads @1.04 GHz, Braswell.
Release date ≈ Q3 2015.

Real World Speed
Performance profile from 60,887 user samples
60,717 User Benchmarks
Best Bench: 108% Base clock 3.7 GHz, turbo 5.35 GHz (avg)
Worst Bench: 94% Base clock 3.7 GHz, turbo 1.75 GHz (avg)
Poor: 94% Great: 108%
SPEED RANK: 11th / 1316
Gaming 102%
Desktop 102%
Workstation 111%
170 User Benchmarks
Best Bench: 28% Base clock 1.05 GHz, turbo 2.1 GHz (avg)
Worst Bench: 13% Base clock 1.05 GHz, turbo 2.1 GHz (avg)
Poor: 13% Great: 28%
SPEED RANK: 1280th / 1316
Gaming 24%
Desktop 27%
Workstation 16%
Effective Speed
Effective CPU Speed
102 % Hugely faster effective speed.
24.1 %
Avg. Memory Latency
92.4 Pts Hugely lower memory latency.
40.8 Pts
Avg. Single Core Mixed Speed
152 Pts Hugely faster single-core speed.
22.7 Pts
Avg. Dual Core Mixed Speed
301 Pts Hugely faster dual-core speed.
42.7 Pts
Avg. Quad Core Mixed Speed
593 Pts Insanely faster quad-core speed.
44.2 Pts
Avg. Octa Core Mixed Speed
1146 Pts Insanely faster octa-core speed.
45.5 Pts
OC Memory Latency
97.8 Pts Hugely lower OC memory latency.
49 Pts
OC Single Core Mixed Speed
162 Pts Hugely faster OC single-core speed.
26 Pts
OC Dual Core Mixed Speed
320 Pts Hugely faster OC dual-core speed.
51.9 Pts
OC Quad Core Mixed Speed
635 Pts Insanely faster OC quad-core speed.
52 Pts
OC Octa Core Mixed Speed
1253 Pts Insanely faster OC octa-core speed.
52.1 Pts
Market Share
Based on 46,586,655 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.43 % Insanely higher market share.
0 %
User Rating
UBM User Rating
66 % Much more popular.
50 %
16 Months Much more recent.
72+ Months
OC Multi Core Mixed Speed
2128 Pts Insanely faster OC 64-core speed.
51.7 Pts
Avg. Multi Core Mixed Speed
1978 Pts Insanely faster 64-core speed.
45 Pts
Launch Date
Launch Date
Q2'20 Q1'15
20 MB Intel® Smart Cache 2 MB L2
Max Memory Size
Max Memory Size (dependent on memory type)
128 GB 8 GB
Memory Types
Memory Types
DDR4-2933 DDR3L-1600
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics
Graphics Base Frequency
Graphics Base Frequency
350 MHz 320 MHz
InTru 3D Tech
Intel® InTru™ 3D Technology
Yes No
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 8 GB
Package Size
Package Size
37.5mm x 37.5mm 25mm x 27mm
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2 No
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
OS Guard
Intel® OS Guard
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
3 2.0
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16, 2x8, 1x8+2x4 1x4/2x2/1x2 + 2x1/4x1
Max # of PCI Express Lanes
Max # of PCI Express Lanes
16 4

More specs » More specs »

Intel’s Comet Lake flagship, the i9-10900K, is the fastest gaming and desktop CPU currently available. This ten-core hyperthreaded processor can easily be overclocked so that all twenty threads run at an eye-watering 5.2 GHz. Whilst its stellar performance is second to none, it comes with a premium price tag of $488 USD. The 10900K also requires a new (Z490) LGA1200 motherboard, which Intel has indicated will remain compatible with Rocket Lake CPUs which are due later this year. Whilst AMD’s competing $420 USD Ryzen 3900X and $675 USD Ryzen 3950X do have a greater number of cores, their lower clock speeds and higher memory latency handicap them in non-rendering use cases. Overall, the 10900K has a 16% effective speed advantage over both the 3900X and 3950X. Users that do a lot of rendering should investigate dedicated hardware encoders such as NVENC and Quick Sync as these are far more efficient than CPU based rendering. Comparing the 10900K and 10700K shows that, when paired with a 2060S, the 10700K offers comparable gaming performance for 20% less money. [Jun '20 CPUPro]


Processor Rankings (Price vs Performance) September 2021 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 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on
  • - 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

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