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IntelBX80684I99900KS
Intel
▲ 561,719 ▼
  

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

VS
▲ 54510 ▼

4 Cores, 8 Threads @2.8 GHz, Lynnfield.
Release date ≤ Q4 2013.

Effective Speed 
+54%
Real World Speed
Performance profile from 64,291 user samples
Benchmark your CPU here
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: 82nd / 1442
Gaming
Gaming 99%
Nuclear submarine
Desktop
Desktop 100%
Nuclear submarine
Workstation
Workstation 99%
Nuclear submarine
51,451 User Benchmarks
Best Bench: 72% Base clock 2.8 GHz, turbo 2.9 GHz (avg)
Worst Bench: 53% Base clock 2.4 GHz, turbo 1.15 GHz (avg)
Poor: 53% Great: 72%
SPEED RANK: 512th / 1442
Gaming
Gaming 64%
Destroyer
Desktop
Desktop 68%
Battle cruiser
Workstation
Workstation 48%
Yacht
Effective Speed
Effective CPU Speed 		98.8 % Much faster effective speed.
+54% 		64.2 %
Average Score 
+122%
Memory
Avg. Memory Latency 		92.8 Pts Slightly lower memory latency.
+5% 		88.1 Pts
1-Core
Avg. Single Core Speed 		147 Pts Hugely faster single-core speed.
+106% 		71.4 Pts
2-Core
Avg. Dual Core Speed 		289 Pts Hugely faster dual-core speed.
+117% 		133 Pts
4-Core
Avg. Quad Core Speed 		563 Pts Hugely faster quad-core speed.
+154% 		222 Pts
8-Core
Avg. Octa Core Speed 		1016 Pts Hugely faster octa-core speed.
+226% 		312 Pts
Overclocked Score 
+102%
Memory
OC Memory Latency 		97.7 Pts +3% 95 Pts
1-Core
OC Single Core Speed 		155 Pts Hugely faster OC single-core speed.
+83% 		84.8 Pts
2-Core
OC Dual Core Speed 		308 Pts Hugely faster OC dual-core speed.
+89% 		163 Pts
4-Core
OC Quad Core Speed 		614 Pts Hugely faster OC quad-core speed.
+120% 		279 Pts
8-Core
OC Octa Core Speed 		1148 Pts Hugely faster OC octa-core speed.
+214% 		366 Pts
Value & Sentiment 
+198%
Market Share
Based on 67,716,938 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.02 % 0.1 % Hugely higher market share.
+400%
User Rating
UBM User Rating 		56 % +4% 54 %
Nice To Haves 
+260%
Age
Newest 		54+ Months Much more recent.
+56% 		124+ Months
64-Core
OC Multi Core Speed 		1664 Pts Hugely faster OC 64-core speed.
+343% 		376 Pts
64-Core
Avg. Multi Core Speed 		1531 Pts Hugely faster 64-core speed.
+381% 		318 Pts
Specifications 
Launch Date
Launch Date 		Q4'19 Q3'09
Cache
Cache 		16 MB Intel® Smart Cache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.2
Embedded Options Available
Embedded Options Available 		No Yes
Lithography
Lithography 		14 nm 45 nm
Max Turbo Frequency
Max Turbo Frequency 		5.00 GHz 3.46 GHz
Bus Speed
Bus Speed 		8 GT/s 2.5 GT/s DMI
Max Memory Size
Max Memory Size (dependent on memory type) 		128 GB 16 GB
Memory Types
Memory Types 		DDR4-2666 DDR3 1066/1333
Memory Bandwidth
Max Memory Bandwidth 		41.6 GB/s 21 GB/s
Thermal Monitoring Technologies
Thermal Monitoring Technologies 		Yes No
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		2 1.0
AES New Instructions
Intel® AES New Instructions 		Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡ 		No Yes
PCI Express Revision
PCI Express Revision 		3 2.0
PCI Express Configurations
PCI Express Configurations ‡ 		Up to 1x16, 2x8, 1x8+2x4 1x16, 2x8

More specs » More specs »
Conclusion 
Average Bench 98.8%
Average Bench 64.2%
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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

I have an iMac from 2009 with this CPU, and it still performs admirably for its age. Is it worth it today though? Not quite, like most of the early Core i3, i5, i7, and all the Core2 CPU's their viability fades by the day and its only a matter of time before they become unusable, but for now this chip is still alright and if you have an old machine laying around with this chip and wanna save some money you might as well restore it! [Mar '24 Randomgaming128]

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The Best.
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Intel Core i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
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Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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