Intel Core i9 9940X 14-core LGA2066

★★★★☆ 4.4 (73)

The 14-core, 28-thread design with a 4.4GHz boost clock and quad-channel DDR4 memory delivers strong parallel throughput for heavily threaded workloads. Its unlocked multiplier on the X299 platform provides headroom for overclocking, though the 165W TDP and 88°C thermal ceiling demand robust cooling. This processor is best for workstation users running sustained multi-threaded renders or simulations who already own an LGA2066 motherboard.

Cores 14
Threads 28
Boost Clock 4400 MHz
L3 Cache 19.25 MB
TDP 165 W
Socket LGA2066
Intel Core i9 9940X 14-core LGA2066 cpu
62 Overall Score

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Snapshot

Pros & Cons

Pros

  • Strong ai (87th percentile) 87th
  • Strong multi thread (85th percentile) 85th
  • Strong platform (77th percentile) 77th
  • Strong social proof (74th percentile) 74th

Cons

  • Below average user sentiment (12th 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 improved over time
67/100Our AI sentiment readmedium confidence · 12 sources · Jun 2026
1★2★3★4★5★Q1 '19: 3.0★ · 1 reviewQ3 '19: 5.0★ · 1 reviewQ4 '19: 3.8★ · 4 reviewsQ2 '20: 4.0★ · 4 reviewsQ3 '20: 5.0★ · 2 reviews11442Q1 '19Q3 '19Q4 '19Q2 '20Q3 '20
Avg ratingHappy (4-5★)Unhappy (1-2★)Bar height = number of reviews

Based on 12 dated customer reviews, grouped by calendar quarter. Period analysis is in English.

The proof

Performance

Performance Percentiles

AI 87.3
Feature 62.3
Platform 77
User Sentiment 11.9
Efficiency 72.1
Multi Thread 84.7
Social Proof 74.4
Single Thread 73.8

Specifications

Full Specifications

Processor

Brand Intel
Series Core i9
Model 9940X
Codename Skylake
Class desktop
Process 14

Cores & Clocks

Cores 14
Threads 28
Base Clock 3300
Boost Clock 4400

Cache

L2 Cache 14
L3 Cache 19.25 MB

Performance

PassMark Multi 28015
PassMark Single 2610

Memory

Memory Type DDR4
Max Speed 2666
Channels 4

Platform & Power

Socket LGA2066
TDP 165
Unlocked Yes

vs Competition

Spec Intel Core i9 9940X AMD Ryzen 7 9800X3D SMC EPYC 9555P Dell Inspiron 7700 HP Celeron 14-dq3000dx DAKboard CPU v4
Cores 14 8 64 10 2 4
Threads 28 16 128 12 2 -
Boost Clock Mhz 4400 5200 4400 4700 2800 -
L3 Cache Mb 19.25 96 256 12 4 -
Tdp W 165 120 360 15 6 -
Socket LGA2066 AM5 AMD Socket SP5 Intel BGA 1744 Intel BGA 1338 BGA
Integrated Graphics - AMD Radeon Graphics - Iris Xe 96EU Intel UHD Graphics -
Compare Compare Compare Compare Compare
Product AIFeaturePlatformUser SentimentEfficiencyMulti ThreadSocial ProofSingle Thread
Intel Core i9 9940X 87.362.37711.972.184.774.473.8
AMD Ryzen 7 9800X3D Compare 91.398.595.192.487.79096.695.7
SMC EPYC 9555P Compare 99.376.996.8090.799.51.588.7
Dell Inspiron 7700 Compare 62.569.571099.466.527.482.1
HP Celeron 14-dq3000dx Compare 17.654.654.6032.411.39.130.6
DAKboard CPU v4 Compare 1320.217.7012.317.459.820.4

Price

Value & Pricing

We started tracking prices for this product on Jun 14, 2026. The chart appears once we have more data.

Usage Scores

Overall (61.5)AI/LLM (62)Budget (63.6)Gaming (58.9)Server (56.8)Efficiency (56.9)Productivity (70.7)

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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