COMPARE
CPU
RANKINGS
TEST
YOUR CPU
ADD TO PC
BUILD
IntelBX80684I99900K
IntelBX80684I59600K
▲ 1192,769 ▼

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

VS
About
▲ 1282,887 ▼

6 Cores, 6 Threads @3.7GHz, Coffee Lake.
Release date: Q4 2018.

Avg. Gaming Bench 
+8%
Real World Speed
Performance profile from 125,651 user samples
Benchmark your CPU here
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
54,230 User Benchmarks
Best Bench: 107% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 79% Base clock 3.7 GHz, turbo 4.3 GHz (avg)
Poor: 79% Great: 107%
SPEED RANK: 13th / 1182
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 95%
Nuclear submarine
Workstation
Workstation 66%
Battle cruiser
Effective Speed
Effective CPU Speed 		101 % Slightly faster effective speed.
+8% 		92.7 %
Average User Bench 
+32%
1-Core
Avg. Single Core Mixed Speed 		145 Pts Slightly faster single-core speed.
+6% 		137 Pts
2-Core
Avg. Dual Core Mixed Speed 		287 Pts Slightly faster dual-core speed.
+6% 		271 Pts
4-Core
Avg. Quad Core Mixed Speed 		565 Pts Slightly faster quad-core speed.
+7% 		529 Pts
8-Core
Avg. Octa Core Mixed Speed 		1059 Pts Much faster octa-core speed.
+41% 		751 Pts
64-Core
Avg. Multi Core Mixed Speed 		1498 Pts Hugely faster 64-core speed.
+98% 		755 Pts
Overclocked Bench 
+24%
1-Core
OC Single Core Mixed Speed 		155 Pts 156 Pts +1%
2-Core
OC Dual Core Mixed Speed 		310 Pts +1% 308 Pts
4-Core
OC Quad Core Mixed Speed 		619 Pts +1% 611 Pts
8-Core
OC Octa Core Mixed Speed 		1204 Pts Much faster OC octa-core speed.
+36% 		888 Pts
64-Core
OC Multi Core Mixed Speed 		1644 Pts Hugely faster OC 64-core speed.
+85% 		887 Pts
Value & Sentiment 
+11%
Market Share
Based on 19,437,832 CPUs tested.
See market share leaders
Market Share
Market Share (trailing 30 days) 		1.36 % Much higher market share.
+31% 		1.04 %
Value
Value For Money 		86.5 % 99 % Slightly better value.
+14%
User Rating
UBM User Rating 		119 % 128 % Slightly more popular.
+8%
Price
Price (score) 		$479 $219 Much cheaper.
+54%
Nice To Haves 
+29%
Age
Newest 		10 Months 10 Months
TDP
Thermal Design Power (TDP) 		95 Watts 95 Watts
Cores
CPU Processing Cores 		8 cores Much higher core count.
+33% 		6 cores
Threads
CPU Processing Threads 		16 threads Hugely higher thread count.
+167% 		6 threads
Lithography
Manufacturing process 		14 nm 14 nm
Base Clock
Base Clock Speed 		3.6 GHz 3.7 GHz +3%
Turbo Clock
Turbo Clock Speed 		5 GHz Slightly faster turbo frequency.
+9% 		4.6 GHz
Specifications 
Series
CPU Architecture 		Coffee Lake Coffee Lake
Socket
Motherboard Socket 		FCLGA1151 FCLGA1151
Graphics
Integrated Graphics 		UHD 630 UHD 630
Cache
Cache 		16 MB SmartCache 9 MB SmartCache
Recommended Price
Recommended Customer Price 		$488.00 - $499.00 $262.00 - $263.00
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.20 GHz 1.15 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		Yes No

More specs » More specs »
Conclusion 
Average Bench 101%
Average Bench 92.7%
ADVERTISEMENT

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 hex-core i5-9600K is third in Intel’s line-up of 9th generation Coffee Lake CPUs. It has a TDP of 95W and requires an aftermarket cooler ($30+). The 9600K was designed to be overclocked. Once this is enabled in the BIOS (requires a Z-series motherbaord), the 9600K runs 10% faster. In terms of performance, the i5-9600K is almost unbeatable for desktop users and it has sufficient multi-core performance to handle all but the most demanding workstation tasks. For Heavy workstation users the Ryzen 3000 series offers great 64-core performance at a very competitive price. For example the overclocked Ryzen 3600 is approximately 13% worse for gaming and desktop (sub octa-core tasks) but it is 27% faster for 64-core processing. At stock clocks the i5-9600K is around 8% slower than Intel’s flagship i9-9900K but when both are overclocked, the 9600K closes the gaming gap to within two or three percent. Considering that the 9900K is the fastest gaming processor available, and almost twice the price of the 9600K, this is no small feat. The i5-9600K is aimed squarely at gamers who are not willing to compromise on performance but don't want to pay more than they need to. [Oct '18 CPUPro]

MORE DETAILS

User Builds 
71,421
54,230
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money.

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
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]

ADVERTISEMENT

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.

UserBenchmark of the month

Gaming Desktop Workstation

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

Processors FAQ
How does IPC compare between AMD's Ryzen and Intel's Kaby Lake?
What is multi core mixed speed?
What is multi core integer speed?
What is multi core floating point speed?
What is single core mixed CPU speed?
What is quad core mixed CPU speed?
What is quad core floating point speed?
What is quad core integer speed?
What is single core floating point speed?
What is single core integer speed?
What is the GeekBench single core score?
What is a CPU?
What is the effective CPU speed index?
What is overclocking?
What is thermal design power (TDP)?
What is the GeekBench score?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-9400F $143AMD RX 580 $172Samsung 850 Evo 250GB $86
AMD Ryzen 5 3600 $198Nvidia GTX 1660 $220Samsung 850 Evo 500GB $103
Intel Core i5-9600K $219AMD RX 5700 XT $400Samsung 850 Pro 256GB $195
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $695SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 16GB $24
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Test your PC Build a PC
Can You Run It?
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer Feedback