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Intel Core i9-9900KF desktop CPU in green PCB with gold contacts

Intel

Intel Core i9-9900KF desktop processor OEM

SKU CH-2JXA-E46KW

Eight-core desktop CPU with 16 threads, 3.6 GHz base clock, 5.0 GHz max turbo, 16 MB L3 cache, 95 W TDP, LGA 1151 socket and unlocked multiplier

  • Product nameCore i9-9900KF
  • CPU cores8-Core
  • CPU socketLGA 1151 (300 Series)
  • Maximum turbo clock5.0 GHz
  • TDP rating95 W
  • Processor classDesktop
  • 8 cores and 16 threads handle heavy multitasking
  • 0 GHz max turbo frequency speeds single-threaded work
  • Unlocked multiplier allows manual overclocking
  • Solder thermal interface improves heat transfer to cooler
  • Requires discrete graphics card for video output

Unlocked 8-core desktop processor

The Intel Core i9-9900KF is an unlocked 9th Generation desktop processor with eight cores and sixteen threads. It runs at a 3.6 GHz base frequency and can reach a 5.0 GHz maximum turbo frequency. The chip uses a 14 nm manufacturing process and fits the LGA 1151 socket on Intel 300 Series motherboards. It requires a discrete graphics card because no integrated graphics are present.

Solder thermal interface and 95 W TDP

A solder thermal interface material transfers heat from the die to the cooler more efficiently than conventional paste. The processor carries a 95 W thermal design power rating, so a capable air or liquid cooler is needed to sustain high frequencies under load. Power draw and noise will depend on the cooling solution chosen and the workload applied.

Platform requirements and expansion headroom

The CPU supports dual-channel DDR4 memory and provides sixteen PCI Express 3.0 lanes for graphics and high-speed storage. Intel Optane memory and SSD caching are supported for faster responsiveness. Builders must pair the processor with a 300 Series motherboard and a discrete GPU; the unlocked multiplier allows frequency tuning when the cooling and power delivery are adequate.

How it compares

Measured against everything we stock in Desktop Processors, at today’s prices. Recalculated every night.

Price $189.99
Pricier than about 60% of the 494 comparable items (median $149.99).
CPU cores 8-Core
Typical for this category: the median of 271 items is 8.
Maximum turbo clock 5.0 GHz
Higher than about 63% of the 246 comparable items (median 4.7 GHz).

New to this? Buying a processor with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameIntel
Product lineCore i9 9th Gen
Model nameBX80684I99900KF
Product nameCore i9-9900KF
Performance
Working frequency3.6 GHz
Bus speed8 GT/s
Processor
CPU cores8-Core
CPU socketLGA 1151 (300 Series)
Maximum turbo clock5.0 GHz
TDP rating95 W
Processor classDesktop
Processor codenameCoffee Lake
CPU threads16-Threads
Level 3 cache16 MB
Process node14 nm
Virtualization supportYes
Max PCIe lanes16
Memory
Channel configuration2
Ports & slots
PCIe generation3.0
Compatibility
Compatible systemsSupported

Questions about this item

How do I install the Core i9-9900KF into an LGA 1151 (300 Series) socket, and what step do people often get wrong?

Align the gold triangle on the processor with the socket corner marker, lower it straight down without force, and close the retention lever; the common error is forgetting to remove the plastic socket cover before seating the chip.

What maintenance or replacement will the Core i9-9900KF need after extended use?

The solder thermal interface material is permanent, so no repaste is required; plan to clean the cooler fins and replace the thermal paste on the cooler base every couple of years.

What limit appears first when the Core i9-9900KF runs at 5.0 GHz turbo under sustained load?

The 95 W thermal design power is reached quickly, so the CPU will throttle unless a cooler rated well above 95 W keeps temperatures in check.

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