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Intel
IntelBX80684I99900KS
▲ 5294 ▼
  

4 Cores, 8 Threads @2.66 GHz, Lynnfield.
Release date ≈ Q2 2014.

VS
▲ 573,638 ▼
  

8 Cores, 16 Threads @4.00 GHz, 127 W.
Release date ≈ Q4 2019.

Effective Speed 
+50%
Real World Speed
Performance profile from 16,265 user samples
Benchmark your CPU here
3,425 User Benchmarks
Best Bench: 77% Base clock 3.8 GHz, turbo 3.95 GHz (avg)
Worst Bench: 55% Base clock 2.65 GHz, turbo 2.65 GHz (avg)
Poor: 55% Great: 77%
SPEED RANK: 503rd / 1468
Gaming
Gaming 66%
Battle cruiser
Desktop
Desktop 69%
Battle cruiser
Workstation
Workstation 50%
Yacht
12,840 User Benchmarks
Best Bench: 105% Base clock 4 GHz, turbo 5.1 GHz (avg)
Worst Bench: 89% Base clock 4 GHz, turbo 5 GHz (avg)
Poor: 89% Great: 105%
SPEED RANK: 99th / 1468
Gaming
Gaming 99%
Nuclear submarine
Desktop
Desktop 100%
Nuclear submarine
Workstation
Workstation 99%
Nuclear submarine
Effective Speed
Effective CPU Speed 		66 % 98.8 % Much faster effective speed.
+50%
Average Score 
+108%
Memory
Avg. Memory Latency 		87.7 Pts 92.8 Pts Slightly lower memory latency.
+6%
1-Core
Avg. Single Core Speed 		74.1 Pts 147 Pts Hugely faster single-core speed.
+98%
2-Core
Avg. Dual Core Speed 		142 Pts 289 Pts Hugely faster dual-core speed.
+104%
4-Core
Avg. Quad Core Speed 		245 Pts 563 Pts Hugely faster quad-core speed.
+130%
8-Core
Avg. Octa Core Speed 		338 Pts 1,016 Pts Hugely faster octa-core speed.
+201%
Overclocked Score 
+74%
Memory
OC Memory Latency 		95.2 Pts 97.7 Pts +3%
1-Core
OC Single Core Speed 		94.8 Pts 155 Pts Much faster OC single-core speed.
+64%
2-Core
OC Dual Core Speed 		184 Pts 308 Pts Much faster OC dual-core speed.
+67%
4-Core
OC Quad Core Speed 		330 Pts 614 Pts Hugely faster OC quad-core speed.
+86%
8-Core
OC Octa Core Speed 		457 Pts 1,148 Pts Hugely faster OC octa-core speed.
+151%
Value & Sentiment 
+255%
Market Share
Based on 69,025,766 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.06 % Hugely higher market share.
+500%
User Rating
UBM User Rating 		52 % 57 % Slightly more popular.
+10%
Nice To Haves 
+221%
Age
Newest 		125+ Months 61+ Months Much more recent.
+51%
64-Core
OC Multi Core Speed 		457 Pts 1,664 Pts Hugely faster OC 64-core speed.
+264%
64-Core
Avg. Multi Core Speed 		341 Pts 1,531 Pts Hugely faster 64-core speed.
+349%
Specifications 
Launch Date
Launch Date 		Q3'09 Q4'19
Cache
Cache 		8 MB SmartCache 16 MB Intel® Smart Cache
Instruction Set Extensions
Instruction Set Extensions 		SSE4.2 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Embedded Options Available
Embedded Options Available 		Yes No
Lithography
Lithography 		45 nm 14 nm
Max Turbo Frequency
Max Turbo Frequency 		3.2 GHz 5.00 GHz
Bus Speed
Bus Speed 		2.5 GT/s DMI 8 GT/s
Max Memory Size
Max Memory Size (dependent on memory type) 		32 GB 128 GB
Memory Types
Memory Types 		DDR3 800/1066/1333 DDR4-2666
Memory Bandwidth
Max Memory Bandwidth 		21 GB/s 41.6 GB/s
ECC Memory Supported
ECC Memory Supported ‡ 		Yes No
Thermal Monitoring Technologies
Thermal Monitoring Technologies 		No Yes
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		1.0 2
AES New Instructions
Intel® AES New Instructions 		No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		Yes No
PCI Express Revision
PCI Express Revision 		2.0 3
PCI Express Configurations
PCI Express Configurations ‡ 		1x16, 2x8, 4x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »
Conclusion 
Average Bench 66%
Average Bench 98.8%

its 75% of a i7 7700k [Oct '17 Godinsk]

MORE DETAILS

The Intel's specially binned i9-9900K, featuring 5GHz all core boost and base clock of 4GHz. This CPU is one of the most powerful Intel CPU in term of day-to-day and gaming performance but with TDP of 127W, bulky air cooler or 240mm AIO is recommended to make sure the CPU doesn't overheat, and open loop liquid cooling if you want to OC. [Jun '20 ColdSpy]

MORE DETAILS

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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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The Best
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