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Intel
IntelBX80684I99900KS
▲ 503 ▼
  

2 Cores, 4 Threads @2.9 GHz, Skylake.
Release date ≈ Q1 2016.

VS
▲ 573,638 ▼
  

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

Effective Speed 
+73%
Real World Speed
Performance profile from 13,974 user samples
Benchmark your CPU here
1,134 User Benchmarks
Best Bench: 66% Base clock 2.9 GHz, turbo 3.1 GHz (avg)
Worst Bench: 38% Base clock 2.9 GHz, turbo 0.4 GHz (avg)
Poor: 38% Great: 66%
SPEED RANK: 666th / 1468
Gaming
Gaming 57%
Gunboat
Desktop
Desktop 64%
Destroyer
Workstation
Workstation 42%
Speed boat
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 		57 % 98.8 % Much faster effective speed.
+73%
Average Score 
+130%
Memory
Avg. Memory Latency 		73.7 Pts 92.8 Pts Lower memory latency.
+26%
1-Core
Avg. Single Core Speed 		86.1 Pts 147 Pts Much faster single-core speed.
+71%
2-Core
Avg. Dual Core Speed 		152 Pts 289 Pts Hugely faster dual-core speed.
+90%
4-Core
Avg. Quad Core Speed 		234 Pts 563 Pts Hugely faster quad-core speed.
+141%
8-Core
Avg. Octa Core Speed 		239 Pts 1,016 Pts Hugely faster octa-core speed.
+325%
Overclocked Score 
+115%
Memory
OC Memory Latency 		89.1 Pts 97.7 Pts Slightly lower OC memory latency.
+10%
1-Core
OC Single Core Speed 		103 Pts 155 Pts Much faster OC single-core speed.
+50%
2-Core
OC Dual Core Speed 		184 Pts 308 Pts Much faster OC dual-core speed.
+67%
4-Core
OC Quad Core Speed 		273 Pts 614 Pts Hugely faster OC quad-core speed.
+125%
8-Core
OC Octa Core Speed 		273 Pts 1,148 Pts Hugely faster OC octa-core speed.
+321%
Value & Sentiment 
+∞%
Market Share
Based on 69,020,940 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.05 % Insanely higher market share.
+∞%
User Rating
UBM User Rating 		50 % 57 % More popular.
+14%
Nice To Haves 
+363%
Age
Newest 		104+ Months 61+ Months Much more recent.
+41%
64-Core
OC Multi Core Speed 		273 Pts 1,664 Pts Hugely faster OC 64-core speed.
+510%
64-Core
Avg. Multi Core Speed 		240 Pts 1,531 Pts Hugely faster 64-core speed.
+538%
Specifications 
Launch Date
Launch Date 		Q3'15 Q4'19
Cache
Cache 		4 MB SmartCache 16 MB Intel® Smart Cache
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX 2.0 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Max Turbo Frequency
Max Turbo Frequency 		3.3 GHz 5.00 GHz
Max Memory Size
Max Memory Size (dependent on memory type) 		32 GB 128 GB
Memory Types
Memory Types 		DDR4-2133, LPDDR3-1866, DDR3L-1600 DDR4-2666
Memory Bandwidth
Max Memory Bandwidth 		34.1 GB/s 41.6 GB/s
Processor Graphics
Processor Graphics ‡ 		Intel® Iris™ Graphics 550 Intel® UHD Graphics 630
Graphics Base Frequency
Graphics Base Frequency 		300 MHz 350 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency 		1.05 GHz 1.20 GHz
Graphics Video Max Memory
Graphics Video Max Memory 		32 GB 64 GB
Package Size
Package Size 		42x24x1.3 37.5mm x 37.5mm
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		2.0 2
PCI Express Revision
PCI Express Revision 		3.0 3
PCI Express Configurations
PCI Express Configurations ‡ 		1x4, 2x2, 1x2+2x1 and 4x1 Up to 1x16, 2x8, 1x8+2x4
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		12 16

More specs » More specs »
Conclusion 
Average Bench 57%
Average Bench 98.8%

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]

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