We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Intel Core i9-9900K desktop processor in standard paper folding box packaging

Intel

Intel Core i9-9900K BX806849900K desktop processor

SKU CH-Q2P2-5X10G

Eight-core desktop processor with 16 threads, 3.6 GHz base clock, 5.0 GHz max turbo, and integrated UHD Graphics 630 for LGA 1151 (300 Series) motherboards

  • Product nameCore i9-9900K
  • CPU cores8-Core
  • CPU socketLGA 1151 (300 Series)
  • TDP rating95 W
  • Processor classDesktop
  • Processor codenameCoffee Lake
  • 8 cores and 16 threads handle heavy multitasking
  • Max turbo frequency 5.0 GHz speeds up single-thread workloads
  • 16 MB L3 cache reduces memory latency
  • Intel UHD Graphics 630 provides display output without a discrete card
  • Unlocked multiplier allows manual overclocking

Core i9-9900K desktop processor

The Intel Core i9-9900K is an 8-core, 16-thread desktop CPU built on 14 nm Coffee Lake architecture. It targets enthusiasts and content creators who need high single-thread speed and multi-thread throughput. The unlocked multiplier allows manual frequency tuning. Integrated Intel UHD Graphics 630 provides baseline display output without a discrete card.

95 W TDP and thermal behaviour

Rated at 95 W thermal design power, the processor runs at a 3.6 GHz base frequency and can reach 5.0 GHz max turbo frequency under load. Heat output scales with voltage and all-core activity, so a capable cooler is essential for sustained turbo operation. No cooling device is included in the box. Acoustic profile depends entirely on the chosen cooler and fan curve.

LGA 1151 300-series platform requirements

The CPU fits only Intel 300-series motherboards with LGA 1151 socket. It supports dual-channel DDR4-2666 memory and provides 16 PCIe 3.0 lanes for graphics and high-speed storage. The integrated graphics engine runs at 350 MHz base and 1.2 GHz max dynamic frequency, freeing a PCIe slot when discrete graphics are not required.

How it compares

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

Price $252.99
Pricier than about 69% of the 494 comparable items (median $149.99).
CPU cores 8-Core
Typical for this category: the median of 271 items is 8.
TDP rating 95 W
Typical for this category: the median of 320 items is 95 W.

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
Product nameCore i9-9900K
Performance
Working frequency3.6 GHz
Bus speed8 GT/s
Processor
CPU cores8-Core
CPU socketLGA 1151 (300 Series)
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
Graphics
Built-in graphicsIntel UHD Graphics 630
GPU base clock350 MHz
Graphics max dynamic frequency1.2 GHz
Ports & slots
PCIe generation3.0
Compatibility
Compatible systemsWindows 11

Questions about this item

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

Align the triangle on the processor with the socket marker, lower it straight down without forcing, then close the retention lever; the common mistake is skipping the alignment and bending the delicate contact pads.

What maintenance or replacement will the Intel UHD Graphics 630 integrated graphics need later?

The integrated graphics are built into the die and require no separate maintenance; if the graphics portion fails the whole processor must be replaced.

What limit appears first when the 8-core, 16-thread chip runs at 5.0 GHz max turbo under sustained load?

The 95 W thermal design power is reached quickly, so the cooling solution becomes the limiting factor before the processor can hold its highest turbo frequency for long.

More in Desktop Processors

Similar items