Last Updated & Fact Checked: April 19, 2026
Are you trying to decide between the Intel Core i9-9900K and the Intel Core i9-9900X?
Product Versus will provide you with all the product details so you can quickly compare the facts to find which product is right for you – the Intel Core i9-9900K or the Intel Core i9-9900X – and find out exactly what the differences are.
Both the Intel Core i9-9900K and the Intel Core i9-9900X are quality products, so read on to find out which one is best for your needs!
Intel Core i9-9900K quick facts
Intel Core i9-9900X quick facts
Intel Core i9-9900K product details
Bestseller No. 1
Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0 GHz Turbo Unlocked LGA1151 300 Series 95W
- 8 Cores/ 16 Threads
- 3.60 GHz up to 5.00 GHz/ 16 MB Cache
- Compatible only with Motherboards based on Intel 300 Series Chipsets
- Intel Optane Memory supported
- Intel UHD Graphics 630
Bestseller No. 2
Intel BX80684I99900KF Intel Core i9-9900KF Desktop Processor 8 Cores up to 5.0 GHz Turbo Unlocked Without Processor Graphics LGA1151 300 Series 95W
- 8 Cores/ 16 Threads
- 3. 60 GHz up to 5. 00 GHz Max Turbo Frequency/ 16 MB Cache
- Compatible only with Motherboards based on Intel 300 Series Chipsets
- Discrete GPU – No Processor Graphics
- Intel Optane Memory Supported; maximum temperature allowed at the processor: 100°C
Bestseller No. 3
![Intel Core i9 i9-9900K Octa-core [8 Core] 3.60 GHz Processor - Socket H4 LGA-1151 - Retail Pack](https://m.media-amazon.com/images/I/41JJOXyz9hL.jpg)
Intel Core i9 i9-9900K Octa-core [8 Core] 3.60 GHz Processor - Socket H4 LGA-1151 - Retail Pack
- Intel Core i9 i9-9900K Octa-core (8 Core) 3.60 GHz Processor - Socket H4 LGA-1151 - Retail Pack - 8 GT/s DMI - 64-bit Processing - 5 GHz Overclocking Speed - 14 nm - 3 Number of Monitors Supported - Intel UHD Graphics 630 Graphics - 95 W - 212°F (100°C)
Intel Core i9-9900X product details
Bestseller No. 1
Intel Core i9-9900X X-Series Processor 10 Cores up to 4.4GHz Turbo Unlocked LGA2066 X299 Series 165W Processors (999AC5)
- 10 Cores/20 Threads
- 3. 50 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
Bestseller No. 2
Intel Core i9-9900X X-Series Tray
- Processor only - non-retail Packaging Intel Core i9-9900x X-Series Processor (19.25M Cache, up to 4.50 GHz) fc-lga14a, tray Sky lake
- The package length is 3.556 centimeters
- The package height is 12.446 centimeters
- The package width is 11.43 centimeters
Bestseller No. 3
Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0 GHz Turbo Unlocked LGA1151 300 Series 95W
- 8 Cores/ 16 Threads
- 3.60 GHz up to 5.00 GHz/ 16 MB Cache
- Compatible only with Motherboards based on Intel 300 Series Chipsets
- Intel Optane Memory supported
- Intel UHD Graphics 630
New products & alternatives to the Intel Core i9-9900K and the Intel Core i9-9900X
New
New
Intel® Core™ Ultra 9 Desktop Processor 285 24 cores (8 P-cores + 16 E-cores) up to 5.6 GHz
- 24 cores (8 P-cores + 16 E-cores) and 24 threads. Integrated Intel Graphics included
- Performance hybrid architecture integrates two core microarchitectures, prioritizing and distributing workloads to optimize performance
- Up to 5.6 GHz. 40 MB Cache
- Compatible with Intel 800 series chipset-based motherboards
- Turbo Boost Max Technology 3.0, and PCIe 5.0 & 4.0 support. Intel Optane Memory support. No thermal solution included
New
Intel Core Ultra 9 285K Arrow Lake 24-Core (8P+16E), LGA 1851, 125W Unlocked Desktop Processor for Z890 Motherboard BX80768285K Plus Mavark Pen Light (Intel Core Ultra 9)
- Intel Core Ultra 9 285K processor. Featuring Intel technology optimized for enthusiast gamers and serious creators and help deliver high performance.
- 36MB Level 3 cache. Provides fast access to heavily used data and instructions.
- Chipset compatibility. Compatible with Intel 800 Series Chipset based motherboards. Refer to motherboard vendor for compatiblity details.
- Boost frequency Up to 5.7GHz to help deliver high performances optimized for enthusiast gamers and serious creators.
- PCIe Express Version Turbo Boost Max Technology 3.0, and PCIe 5.0 & 4.0 support. Intel Optane Memory support. No thermal solution included
Our conclusion on the Intel Core i9-9900K vs Intel Core i9-9900X
Both the Intel Core i9-9900K and the Intel Core i9-9900X are high quality products and we are sure you will be happy with either one. In the end it comes down to your budget and the value for money you are looking for.
Either way, the Intel Core i9-9900K and the Intel Core i9-9900X are both excellent products that will more than do their job!