IntelBX80684I99900K
IntelBX80648I75960X

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

8 Cores, 16 Threads @3.0GHz, Haswell-E.
Release date: Q3 2014.

Real World Speed
Performance profile from 369,691 user samples
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: 89th / 1442
Gaming
Gaming 98%
Nuclear submarine
Desktop
Desktop 98%
Nuclear submarine
Workstation
Workstation 97%
Nuclear submarine
15,468 User Benchmarks
Best Bench: 94% Base clock 3 GHz, turbo 4.8 GHz (avg)
Worst Bench: 70% Base clock 3 GHz, turbo 1.2 GHz (avg)
Poor: 70% Great: 94%
SPEED RANK: 228th / 1442
Gaming
Gaming 80%
Aircraft carrier
Desktop
Desktop 80%
Aircraft carrier
Workstation
Workstation 77%
Battleship
Effective Speed
Effective CPU Speed
97.9 % Faster effective speed.
+22%
80.5 %
Memory
Avg. Memory Latency
93.1 Pts Slightly lower memory latency.
+7%
87 Pts
1-Core
Avg. Single Core Speed
142 Pts Much faster single-core speed.
+42%
100 Pts
2-Core
Avg. Dual Core Speed
281 Pts Much faster dual-core speed.
+40%
201 Pts
4-Core
Avg. Quad Core Speed
551 Pts Much faster quad-core speed.
+38%
398 Pts
8-Core
Avg. Octa Core Speed
981 Pts Much faster octa-core speed.
+37%
718 Pts
Memory
OC Memory Latency
97.2 Pts +2% 95.3 Pts
1-Core
OC Single Core Speed
153 Pts Faster OC single-core speed.
+20%
128 Pts
2-Core
OC Dual Core Speed
305 Pts Faster OC dual-core speed.
+20%
254 Pts
4-Core
OC Quad Core Speed
604 Pts Faster OC quad-core speed.
+20%
502 Pts
8-Core
OC Octa Core Speed
1116 Pts Faster OC octa-core speed.
+21%
920 Pts
Market Share
Based on 67,717,480 CPUs tested
Market Share
Market Share (trailing 30 days)
1.1 % Insanely higher market share.
+3,567%
0.03 %
Value
Value For Money
87.9 % Slightly better value.
+10%
79.9 %
User Rating
UBM User Rating
87 % Much more popular.
+55%
56 %
Price
Price (score)
$412 $285 Much cheaper.
+31%
Age
Newest
66 Months Much more recent.
+43%
116 Months
TDP
Thermal Design Power (TDP)
95 Watts Much more energy efficient.
+32%
140 Watts
Cores
CPU Processing Cores
8 cores 8 cores
Threads
CPU Processing Threads
16 threads 16 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm
Base Clock
Base Clock Speed
3.6 GHz Faster base frequency.
+20%
3 GHz
Turbo Clock
Turbo Clock Speed
5 GHz Much faster turbo frequency.
+43%
3.5 GHz
64-Core
OC Multi Core Speed
1590 Pts Faster OC 64-core speed.
+18%
1353 Pts
64-Core
Avg. Multi Core Speed
1451 Pts Much faster 64-core speed.
+35%
1075 Pts
Series
CPU Architecture
Coffee Lake Haswell-E
Socket
Motherboard Socket
FCLGA1151 LGA2011-V3
Graphics
Integrated Graphics
UHD 630 None
Launch Date
Launch Date
Q4'18 Q3'14
Cache
Cache
16 MB SmartCache 20 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.2, AVX 2.0, AES
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$488.00 - $499.00 $999.00 - $1059.00
Max Turbo Frequency
Max Turbo Frequency
5.00 GHz 3.5 GHz
Bus Speed
Bus Speed
8 GT/s DMI3 0 GT/s
Memory Types
Memory Types
DDR4-2666 DDR4 1333/1600/2133
Memory Channels
Max # of Memory Channels
2 4
Memory Bandwidth
Max Memory Bandwidth
41.6 GB/s 68 GB/s
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 None
Package Size
Package Size
37.5mm x 37.5mm 52.5mm x 45.0mm
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
Max # of PCI Express Lanes
Max # of PCI Express Lanes
16 40

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

The Intel 5960X sports eight cores and sixteen threads. That's two more cores than we have ever seen on a consumer processor before and as such this $1,000 processor offers record breaking multi-threaded CPU horsepower. Unfortunately the 5960X is clocked at just 3 GHz base and 3.5 GHz turbo which, for single and dual-core workloads, renders it around 15% slower than a $69 G3258 on stock clocks! The 5960X is only compatible with Intel's new X99 chipset which requires new DDR4 RAM and is currently far more expensive, with little consumer benefit, than DDR3. All in all the i7-5960X processor is largely irrelevant for consumers as it's far far too expensive. [Sep '14 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) April 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]

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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.
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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

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HDDRAMUSB
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