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Square green ceramic processor with gold contacts and silver heat spreader, no cooler included

Intel

Intel Core i7-2600K 3.4GHz Quad-Core LGA 1155 95W desktop processor

SKU CH-C3W1-Q6HG4

Quad-core desktop CPU with 3.4 GHz base clock, 3.8 GHz turbo, 8 MB L3 cache and Intel HD Graphics 3000 for LGA 1155 boards

  • NameCore i7-2600K
  • CPU Socket TypeLGA 1155
  • Core NameSandy Bridge
  • # of CoresQuad-Core
  • Operating Frequency3.4GHz (3.8GHz Turbo Boost)
  • L2 Cache4 x 256KB
  • 4 GHz base and 3.8 GHz turbo boost speed up everyday tasks
  • Quad-core with Hyper-Threading runs eight threads for smoother multitasking
  • 8 MB L3 cache plus four 256 KB L2 caches keep data close to the cores
  • Intel HD Graphics 3000 at 850 MHz handles display output without a discrete card
  • 32 nm Sandy Bridge design rated at 95 W TDP for efficient desktop performance

Second-Generation Core i7 for LGA 1155 Builds

This quad-core processor fits LGA 1155 motherboards and runs at a base frequency of 3.4GHz with Turbo Boost up to 3.8GHz. It is aimed at enthusiasts who want an unlocked multiplier for overclocking on a mature platform. The 32nm Sandy Bridge architecture includes Hyper-Threading for eight logical threads.

95W Thermal Design Without a Cooler

The 95W TDP means a capable aftermarket cooler is required because none is supplied in the box. Integrated Intel HD Graphics 3000 runs at 850MHz and provides display output on boards with video ports. The dual-channel memory controller supports DDR3-1066 and DDR3-1333 for straightforward RAM selection.

Unlocked Multiplier for Overclocking

The K-series designation signals an unlocked ratio multiplier, the single specification that lets builders push frequencies beyond the stock 3.8GHz Turbo ceiling. Combined with 8MB of L3 cache and AVX instruction support, this trait decides whether the chip matches a performance-focused build or a locked alternative would suffice.

Highlights

  • 4 GHz base and 3.8 GHz turbo boost speed up everyday tasks
  • Quad-core with Hyper-Threading runs eight threads for smoother multitasking
  • 8 MB L3 cache plus four 256 KB L2 caches keep data close to the cores
  • Intel HD Graphics 3000 at 850 MHz handles display output without a discrete card
  • 32 nm Sandy Bridge design rated at 95 W TDP for efficient desktop performance

Specifications

BrandIntel
SeriesCore i7 2nd Gen
NameCore i7-2600K
ModelBX80623I72600K
CPU Socket TypeLGA 1155
Core NameSandy Bridge
# of CoresQuad-Core
Operating Frequency3.4GHz (3.8GHz Turbo Boost)
L2 Cache4 x 256KB
L3 Cache8MB
Manufacturing Tech32nm
Instruction Set64-Bit
Hyper-Threading SupportYes
Integrated Memory Controller SpeedDual Channel DDR3-1066/1333
Virtualization Technology SupportYes
Integrated GraphicsIntel HD Graphics 3000
Graphics Base Frequency850 MHz
Multimedia InstructionSSE4.1/4.2, AVX
Thermal Design Power95W
Cooling DeviceCooling device not included - Processor Only

Questions about this item

What memory speed does the integrated DDR3 controller support?

The integrated memory controller runs dual-channel DDR3 at 1066 or 1333 MT/s.

Which socket and cooler clearance does the LGA 1155 package require?

It fits LGA 1155 motherboards; the 95 W TDP means a standard boxed cooler or equivalent aftermarket cooler is sufficient.

How is the processor seated, and what step is often missed?

Align the notches, lower the CPU gently, close the retention lever, then apply thermal paste before mounting the cooler — skipping the paste is the common error.

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