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Square green PCB with silver metal heat spreader, gold contact pads on underside, Intel branding on top

Intel

Intel Core i7-4790K desktop processor 4.0GHz 88W LGA 1150

SKU CH-3Q61-HRHA1

Quad-core desktop CPU with eight threads, 4.0 GHz base and 4.4 GHz turbo clocks, 8 MB L3 cache, Intel HD Graphics 4600, 88 W TDP, LGA 1150 socket, DDR3 support

  • Processors Typei7
  • Namei7-4790K
  • CPU Socket TypeLGA 1150
  • Core NameDevil's Canyon
  • # of CoresQuad-Core
  • # of Threads8-Threads
  • Quad-core performance at 4.0 GHz base clock
  • Eight threads handle heavy multitasking and threaded games
  • 8 MB L3 cache speeds repeated data access
  • Intel HD Graphics 4600 provides integrated video output
  • 88 W TDP fits standard desktop cooling solutions

Quad-core desktop processor for threaded workloads

The Intel Core i7-4790K is a four-core, eight-thread CPU built on 22nm Devil's Canyon silicon. It operates at 4.0GHz with a maximum turbo of 4.4GHz and fits the LGA 1150 socket. The 88W thermal design power suits builds that need strong single-thread speed and simultaneous multi-threading for immersive games and creative tasks.

OEM cooler omitted; integrated graphics included

No stock fan ships in the box, so a separate cooling solution must be provided. Intel HD Graphics 4600 is built into the die, delivering baseline display output and Quick Sync media acceleration without a discrete card. Eight software threads let the processor distribute physics, AI and rendering across all cores while the graphics engine handles texturing and shading.

DDR3 dual-channel memory interface limits bandwidth

The memory controller supports only DDR3 in a two-channel configuration, capping theoretical throughput well below modern standards. L3 cache totals 8MB and L1 cache provides 256KB per core, which helps mitigate latency but cannot overcome the bus width constraint. Virtualisation technology is supported for legacy hypervisor workloads.

Highlights

  • Quad-core performance at 4.0 GHz base clock
  • Eight threads handle heavy multitasking and threaded games
  • 8 MB L3 cache speeds repeated data access
  • Intel HD Graphics 4600 provides integrated video output
  • 88 W TDP fits standard desktop cooling solutions

Specifications

BrandIntel
Processors Typei7
Series4000
Namei7-4790K
CPU Socket TypeLGA 1150
Core NameDevil's Canyon
# of CoresQuad-Core
# of Threads8-Threads
Operating Frequency4.0GHz
Max Turbo Frequency4.4GHz
L1 Cache4x256KB
L3 Cache8MB
Manufacturing Tech22nm
Instruction Set64-Bit
Hyper-Threading SupportYes
Memory TypesDDR3
Memory Channel2
Virtualization Technology SupportYes
Integrated GraphicsIntel HD Graphics 4600
Thermal Design Power88W
Cooling DeviceCooling device not included - Processor Only

Questions about this item

Does the i7-4790K need a separate cooler and what should I plan for?

The processor is sold without a fan in the box, so you must supply your own LGA 1150 compatible cooler rated for at least 88W TDP.

What limit appears first when the i7-4790K runs at full load for extended periods?

The 88W thermal design power is the limiting factor; sustained turbo at 4.4GHz across all cores will hit that ceiling and the processor will throttle to stay within it.

How much heat and noise should I expect from the i7-4790K running all day?

At 88W TDP the chip itself produces a steady 88 watts of heat; actual noise and temperature depend entirely on the cooler you choose and your case airflow.

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