IntelBX80684I99900K
IntelBX80677I77700K

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

VS
About

4 Cores, 8 Threads @4.2GHz, Kaby Lake.
Release date: Q1 2017.

Real World Speed
Performance profile from 372,566 user samples
71,421 User Benchmarks
Best Bench: 110% Base clock 3.6 GHz, turbo 5.3 GHz (avg)
Worst Bench: 79% Base clock 3.6 GHz, turbo 2.35 GHz (avg)
Poor: 79% Great: 110%
SPEED RANK: 2nd / 1182
Gaming
Gaming 101%
UFO
Desktop
Desktop 101%
UFO
Workstation
Workstation 101%
UFO
301,145 User Benchmarks
Best Bench: 96% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 67% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 67% Great: 96%
SPEED RANK: 39th / 1182
Gaming
Gaming 83%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 62%
Destroyer
Effective Speed
Effective CPU Speed
101 % Faster effective speed.
+21%
83.3 %
1-Core
Avg. Single Core Mixed Speed
145 Pts Slightly faster single-core speed.
+7%
136 Pts
2-Core
Avg. Dual Core Mixed Speed
287 Pts Slightly faster dual-core speed.
+9%
264 Pts
4-Core
Avg. Quad Core Mixed Speed
565 Pts Faster quad-core speed.
+21%
468 Pts
8-Core
Avg. Octa Core Mixed Speed
1059 Pts Much faster octa-core speed.
+52%
695 Pts
64-Core
Avg. Multi Core Mixed Speed
1498 Pts Hugely faster 64-core speed.
+113%
704 Pts
1-Core
OC Single Core Mixed Speed
155 Pts +3% 150 Pts
2-Core
OC Dual Core Mixed Speed
310 Pts +4% 297 Pts
4-Core
OC Quad Core Mixed Speed
619 Pts Slightly faster OC quad-core speed.
+12%
554 Pts
8-Core
OC Octa Core Mixed Speed
1204 Pts Much faster OC octa-core speed.
+53%
787 Pts
64-Core
OC Multi Core Mixed Speed
1644 Pts Hugely faster OC 64-core speed.
+108%
790 Pts
Market Share
Based on 19,434,833 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.37 % 1.45 % Slightly higher market share.
+6%
Value
Value For Money
86.5 % Slightly better value.
+7%
80.7 %
User Rating
UBM User Rating
120 % Slightly more popular.
+13%
106 %
Price
Price (score)
$479 $312 Much cheaper.
+35%
Age
Newest
10 Months Much more recent.
+68%
31 Months
TDP
Thermal Design Power (TDP)
95 Watts 91 Watts +4%
Cores
CPU Processing Cores
8 cores Hugely higher core count.
+100%
4 cores
Threads
CPU Processing Threads
16 threads Hugely higher thread count.
+100%
8 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz 4.2 GHz Faster base frequency.
+17%
Turbo Clock
Turbo Clock Speed
5 GHz Slightly faster turbo frequency.
+11%
4.5 GHz
Series
CPU Architecture
Coffee Lake Kaby Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 HD 630
Launch Date
Launch Date
Q4'18 Q1'17
Cache
Cache
16 MB SmartCache 8 MB
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX 2.0
Recommended Price
Recommended Customer Price
$488.00 - $499.00 $339.00 - $350.00
Memory Types
Memory Types
DDR4-2666 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.15 GHz
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No

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 Core i7-7700K is Intel’s flagship Kaby Lake based CPU which is reported to have the same IPC as its predecessor, Skylake. Comparing the 7700K and 6700K shows that both average effective speed and peak overclocked speed are up by 7%. Most of the increase in average effective speed is explained by the 5% boost in base clocks from 4.0 to 4.2 GHz. The improved peak lab speed is attributable to a combination of better overclocking capacity and improvements in Intel’s speedshift technology which make the 7700K slightly more responsive. Kaby Lake also has marginally better HD 630 integrated graphics. The i7-7700K is priced similarly to the i7-6700K so for top end gaming and workstation builds, the 7700K is the clear choice for 2017. AMD’s Ryzen will release later this year so things could change at that time. [Jan '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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The Best.
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