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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

  • Product namei7-4790K
  • CPU coresQuad-Core
  • CPU socketLGA 1150
  • Maximum turbo clock4.4 GHz
  • TDP rating88 W
  • Processor classi7
  • 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.

How it compares

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

Price $72.99
Cheaper than about 77% of the 494 comparable items (median $149.99).
Maximum turbo clock 4.4 GHz
Lower than about 70% of the 246 comparable items (median 4.7 GHz).
TDP rating 88 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 line4000
Product namei7-4790K
Performance
Working frequency4.0 GHz
Processor
CPU coresQuad-Core
CPU socketLGA 1150
Maximum turbo clock4.4 GHz
TDP rating88 W
Processor classi7
Processor codenameDevil's Canyon
CPU threads8-Threads
L1 cache size4 × 256 KB
Level 3 cache8 MB
Process node22 nm
CPU instruction set64-Bit
Hyper-ThreadingYes
Virtualization supportYes
Memory
Supported memoryDDR3
Channel configuration2
Graphics
Built-in graphicsIntel HD Graphics 4600
In the box
Included coolerNot 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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