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Intel · Core
Core i9-11900K
An unlocked eight-core Rocket Lake desktop processor with Thermal Velocity Boost, PCIe 4.0 and UHD Graphics 750.
Model history · 3 models, 2018–2021
- 2018Core i9-9900KCompare
- 2020Core i9-10900KCompare
- 2021Core i9-11900K
- Cores
- 8/16
- Boost
- 5.3 GHz
- L3
- 16 MB
- Power
- 125 W
- Socket
- LGA1200
What reviewers say
Reviews find strong gaming performance, but little consistent improvement over the Core i9-10900K. Its lower core count can reduce performance in heavily threaded work, where the Ryzen 9 5900X is substantially stronger. High power consumption and launch pricing make it difficult to justify over cheaper Intel processors or Ryzen alternatives.
From techspot.com and pcgamer.com
Specifications
Report a wrong or missing specCores and clocks
- Cores
- 8
- Threads
- 16
- Base clock
- 3.5 GHz
- Boost clock
- 5.3 GHz
- L3 cache
- 16 MB
- Cores
- Hyper-Threading, Turbo Boost Max 3.0, Thermal Velocity Boost, AVX-512 and Deep Learning Boost supported. General retail sale began 30 March 2021, according to Intel's sales-embargo statement reported by Windows Central; the 16 March maker press release was the announcement.
- Clocks
- Up to 5.3 GHz with Thermal Velocity Boost at its 70°C temperature threshold; up to 5.2 GHz with Turbo Boost Max 3.0, or 5.1 GHz with Turbo Boost 2.0. Configurable TDP-down to 95 W with a 3 GHz base clock. Adaptive Boost Technology raises all-core clocks when power and thermal conditions allow (PC Gamer). Tom's Hardware reports 250 W PL2; the current Intel specification page publishes TDP only.
Graphics and AI
- Built-in graphics
- Yes
- Graphics
- Intel UHD Graphics 750; 32 execution units; 350 MHz base, up to 1.3 GHz; up to 64 GB shared graphics memory; three displays. HDMI up to 4096×2160 at 60 Hz; DisplayPort up to 5120×3200 at 60 Hz; Quick Sync Video supported.
- AI engine
- Intel Gaussian & Neural Accelerator 2.0; Deep Learning Boost on the CPU.
Platform
- Socket
- LGA1200
- Base power
- 125 W
- Unlocked
- Yes
- Cooler in the box
- No
- Memory support
- Up to 128 GB; two channels; DDR4-3200; 50 GB/s maximum bandwidth; ECC not supported. Tom's Hardware identifies DDR4-3200 Gear 1 as officially supported on the Core i9 models.
- PCIe
- PCIe 4.0; 20 CPU lanes, configured as 1×16+1×4, 2×8+1×4 or 1×8+3×4.
- Process
- 14 nm; Rocket Lake; 37.5 × 37.5 mm package; 100°C maximum junction temperature. Cypress Cove CPU architecture (Intel launch announcement).
- Cooler
- No cooler included with the boxed processor (Tom's Hardware exact-model review).
Pros and cons
Pros
- Twenty PCIe 4.0 CPU lanes
- Unlocked CPU multiplier
- Integrated UHD Graphics 750
Cons
- Fewer cores than its ten-core predecessor
- No cooler included
- 125 W rated TDP
Closest rivals
Model | Cores | Boost | L3 | Power | Socket | Released |
|---|---|---|---|---|---|---|
| 8/16 | 5 GHz | 16 MB | 125 W | LGA1200 | Mar 2021 | |
| 8/16 | 4.7 GHz | 32 MB | 105 W | AM4 | Jul 2020 | |
| 8/16 | 4.7 GHz | 32 MB | 105 W | AM4 | Nov 2020 |
Previous model: Core i9-10900K.
Sources
- intel.com/content/www/us/en/products/sku/212325/intel-core-i911900k-processor-1…
- intc.com/news-events/press-releases/detail/1449/introducing-11th-gen-intel-core…
- intel.com/content/www/us/en/support/articles/000038213/processors/intel-core-pr…
- tomshardware.com/reviews/intel-core-i9-11900k-and-i5-11600k-review
- pcgamer.com/intel-core-i9-11900k-review-benchmarks-performance
- windowscentral.com/intel-reluctantly-confirms-launch-date-11th-gen-rocket-lake-…
- kakakumag.com/pc-smartphone
- Intel 11th-generation unlocked Core i9 packaging alongside Core i5 and Core i7 boxes in the supplied launch scene: Intel official 11th-generation desktop launch photograph, published with the Core i9-11900K flagship caption; pictured unlocked Core i9 packaging alongside Core i5 and Core i7 packaging. Complete supplied canvas and background preserved.
