Intel Core i9 9900K 8-core LGA1151

★★★☆☆ 3.0 (8)

The 8-core, 16-thread design with a 5.0 GHz boost clock delivers strong single and multi-threaded performance for its generation. Its unlocked multiplier on the LGA1151 socket provides accessible overclocking headroom for enthusiasts using 300-series motherboards. This processor is best for users upgrading an existing Coffee Lake system who need high clock speeds for gaming and moderate content creation.

Cores 8
Threads 16
Boost Clock 5000 MHz
L3 Cache 16 MB
TDP 95 W
Socket LGA1151
Integrated Graphics Intel UHD Graphics 630
Intel Core i9 9900K 8-core LGA1151 cpu
55 Overall Score

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Snapshot

Pros & Cons

Pros

  • Strong feature (83rd percentile) 83rd
  • Strong single thread (80th percentile) 80th
  • Strong ai (75th percentile) 75th
  • Strong efficiency (75th percentile) 75th

Cons

  • Below average social proof (6th percentile)

What owners think

How owner sentiment changed over time

Exclusive

Based on when customers actually wrote their reviews - so you can see whether early praise held up.

Owner sentiment has cooled since launch
1★2★3★4★5★Q1 '24: 5.0★ · 1 reviewQ3 '25: 1.0★ · 1 reviewQ1 '26: 1.0★ · 1 review111Q1 '24Q3 '25Q1 '26
Avg ratingHappy (4-5★)Unhappy (1-2★)Bar height = number of reviews

Based on 3 dated customer reviews, grouped by calendar quarter. Period analysis is in English.

The proof

Performance

Performance Percentiles

AI 74.8
Feature 83.3
Platform 56
Efficiency 74.8
Multi Thread 74
Social Proof 6.1
Single Thread 79.9

Specifications

Full Specifications

Processor

Brand Intel
Series Core i9
Model 9900K
Codename Coffee Lake-R
Class desktop
Process 14

Cores & Clocks

Cores 8
P-cores 8
Threads 16
Base Clock 3600
Boost Clock 5000

Cache

L2 Cache 2
L3 Cache 16 MB

Performance

PassMark Multi 18051
PassMark Single 2910

Memory

Memory Type DDR4
Max Speed 2666
Max Memory 128
ECC No

Platform & Power

Socket LGA1151
PCIe 3
PCIe Lanes 16
TDP 95
Max Turbo Power 119
Unlocked Yes

Graphics & AI

Integrated Graphics Intel UHD Graphics 630

vs Competition

Spec Intel Core i9 9900K AMD Ryzen 7 9800X3D Dell Inspiron 7700 WowWee Xeon Gold 5120 CISCO SYSTEMS - ENTERPRISE Xeon E5-2699v4 HP Celeron 14-dq3000dx
Cores 8 8 10 14 22 2
Threads 16 16 12 28 12 2
Boost Clock Mhz 5000 5200 4700 3200 3600 2800
L3 Cache Mb 16 96 12 19.25 39 4
Tdp W 95 120 15 105 - 6
Socket LGA1151 AM5 Intel BGA 1744 LGA 3647 LGA2011-3 Intel BGA 1338
Integrated Graphics Intel UHD Graphics 630 AMD Radeon Graphics Iris Xe 96EU - - Intel UHD Graphics
Compare Compare Compare Compare Compare
Product AIFeaturePlatformEfficiencyMulti ThreadSocial ProofSingle Thread
Intel Core i9 9900K 74.883.35674.8746.179.9
AMD Ryzen 7 9800X3D Compare 91.398.595.187.79096.695.7
Dell Inspiron 7700 Compare 62.569.57199.466.527.482.1
WowWee Xeon Gold 5120 Compare 73.820.217.772.874.438.344.4
CISCO SYSTEMS - ENTERPRISE Xeon E5-2699v4 Compare 44.546.417.730.152.651.210.3
HP Celeron 14-dq3000dx Compare 17.654.654.632.411.39.130.6

Price

Value & Pricing

Price History

¥58,000 ¥60,000 ¥62,000 ¥64,000 ¥66,000 ¥68,000 ¥70,000 Jun 14Nov 6 ¥59,462

Usage Scores

Overall (55)AI/LLM (49.7)Budget (55.9)Gaming (52.6)Server (46.1)Efficiency (59)Productivity (59.7)

A full written review is coming soon. The specs, scores, prices and charts above are always up to date.

Other Configurations1

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