# Intel Core i9-9940X X-Series Processor 14 Cores up to 4.4GHz Turbo Unlocked LGA2066 X299 Series 165W Processors (999AC9)

- Category: Processor
- Brand: Intel
- Model: Core i9-9940X
- Part number: BX80673I99940X
- Price (US): $499.00
- Price last checked: 2026-08-05
- Rating: 4.3/5 from 74 Amazon reviews
- Warranty: 3 years
- Product page: https://buildmypc.net/component-details/processor/intel-core-i9-9940x-bx80673i99940x/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Intel |
| Model | Core i9-9940X |
| Cores / Threads | 14 / 28 |
| Speed (Base / Turbo) | 3.3 GHz / 4.5 GHz |
| Memory Type | DDR4 - 2666 MHz |
| Socket Type | LGA 2066 |
| L3 Cache | 19.25 MB |
| TDP | 165 W |
| Unlocked | Yes |
| Graphics | None |
| Micro Architecture | Skylake |

## Key Features

- 14 Cores/28 Threads; The maximum temperature allowed at the processor: 88°C
- 3.30 GHz up to 4.40 GHz Max Turbo Frequency/19.25 MB Cache
- Quad DDR4-2666 Memory channels
- Compatible only with Motherboards based on Intel x299 chipsets
- Intel Optane Memory supported

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