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Intel Core i5-3570K desktop processor in LGA 1155 socket with integrated heat spreader

Intel

Intel Core i5-3570K BX80637I53570K desktop processor

SKU CH-YW4D-M4B7Q

Quad-core desktop CPU with 3.4 GHz base and 3.8 GHz turbo, 6 MB L3 cache, 77 W TDP, and Intel HD Graphics 4000

  • Product nameCore i5-3570K
  • CPU coresQuad-Core
  • CPU socketLGA 1155
  • TDP rating77 W
  • Processor classDesktop
  • Processor codenameIvy Bridge
  • Quad-core 3.4 GHz base clock with 3.8 GHz turbo for responsive everyday performance
  • 22 nm Ivy Bridge design at 77 W TDP keeps power draw modest
  • 6 MB L3 cache plus 4 × 256 KB L2 cache reduce memory latency
  • Integrated Intel HD Graphics 4000 handles display output without a discrete card
  • LGA 1155 socket supports dual-channel DDR3 up to 1600 MT/s for flexible memory options

Ivy Bridge quad-core for LGA 1155

This desktop processor fits LGA 1155 motherboards and delivers four cores at 3.4 GHz with a 3.8 GHz turbo frequency. The 22 nm design runs at a 77 W thermal rating and includes Intel HD Graphics 4000 for basic display output. It suits builders upgrading or maintaining a 3rd-generation Core i5 platform.

Dual-channel DDR3 controller limits memory speed

The integrated memory controller supports DDR3 at 1333 and 1600 MT/s in dual-channel mode. Faster modules will down-clock to the highest supported rate, so purchasing memory beyond 1600 provides no benefit. System bandwidth is therefore capped by the controller specification rather than the DIMMs themselves.

Unlocked multiplier enables overclocking

The K-series suffix means the ratio multiplier is unlocked, allowing frequency increases when paired with a Z77 or similar chipset. On non-Z chipsets the multiplier remains locked, so the 3.8 GHz turbo ceiling becomes the practical maximum. Choose this part only if the motherboard chipset permits multiplier adjustment.

How it compares

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

Price $27.99
Cheaper than about 94% of the 494 comparable items (median $149.99).
TDP rating 77 W
Lower than about 56% of the 320 comparable items (median 95 W).

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Specifications

Product
Brand nameIntel
Product lineCore i5 3rd Gen
Model nameBX80637I53570K
Product nameCore i5-3570K
Performance
Working frequency3.4 GHz (3.8 GHz Turbo)
Processor
CPU coresQuad-Core
CPU socketLGA 1155
TDP rating77 W
Processor classDesktop
Processor codenameIvy Bridge
CPU threads4-Threads
Level 2 cache4 × 256 KB
Level 3 cache6 MB
Process node22 nm
CPU instruction set64-Bit
Hyper-ThreadingNo
Virtualization supportYes
Memory
Supported memory speedDual-channel DDR3 Memory Controller supports DDR3-1333 and DDR3-1600 memory
Supported memoryDDR3 1600
Graphics
Built-in graphicsIntel HD Graphics 4000
GPU base clock650 MHz
Graphics max dynamic frequency1.15 GHz
In the box
Included coolerNot included - Processor Only
More details
DMI5 GT/s

Questions about this item

Should I pick the 3.4 GHz base or the 3.8 GHz turbo version?

This single processor runs at 3.4 GHz normally and automatically boosts to 3.8 GHz when thermal headroom allows, so there is no separate version to choose.

What does the 3.8 GHz turbo actually deliver in a built PC?

The chip can hit 3.8 GHz on active cores while staying within its 77 W envelope, giving a measurable lift in bursty workloads such as game loading or compile spikes.

Which memory speeds does the LGA 1155 memory controller officially support?

The integrated dual-channel controller is validated for DDR3-1333 and DDR3-1600; faster modules will run at the highest supported speed.

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