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Intel Core i7-3820 processor in LGA 2011 package, metallic silver heatspreader with gold contacts

Intel

Intel Core i7-3820 BX80619i73820 desktop processor

SKU CH-JE9E-NJBTR

Quad-core desktop processor with 3.6 GHz base clock, 3.8 GHz turbo, 10 MB L3 cache and LGA 2011 socket

  • Product nameCore i7-3820
  • CPU coresQuad-Core
  • CPU socketLGA 2011
  • TDP rating130 W
  • Processor codenameSandy Bridge-E
  • Working frequency3.6 GHz (3.8 GHz Turbo Boost)
  • 10MB L3 cache accelerates data-heavy workloads
  • 6GHz base clock with 3.8GHz Turbo Boost delivers responsive performance
  • Four cores and Hyper-Threading handle parallel tasks efficiently
  • Quad-channel DDR3 1600 memory controller maximises bandwidth
  • 32nm Sandy Bridge-E architecture balances speed and 130W thermal design

Core i7-3820 quad-core desktop processor

The Intel Core i7-3820 is a quad-core desktop processor built on 32nm Sandy Bridge-E architecture. It runs at 3.6GHz with a 3.8GHz Turbo Boost frequency and a 130W thermal design power. The CPU fits the LGA 2011 socket and provides 10MB of L3 cache plus 4 x 256KB of L2 cache.

Suits workstations needing four cores

This processor fits users building an LGA 2011 workstation that relies on four physical cores with Hyper-Threading. It supports quad-channel DDR3 1600 memory and includes virtualization technology for multi-OS environments. Builders who require an included cooler or a lower power envelope should look at other options.

130W TDP dictates cooler choice

The 130W thermal design power is the specification that determines whether this part fits your thermal solution. A compatible LGA 2011 cooler rated for at least this heat output must be sourced separately because the box contains the processor only. Voltage operates between 0.600V and 1.350V under load.

How it compares

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

Price $35.99
Cheaper than about 91% of the 494 comparable items (median $149.99).
TDP rating 130 W
Higher than about 81% of the 320 comparable items (median 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 i7 3rd Gen
Model nameBX80619i73820
Product nameCore i7-3820
Performance
Working frequency3.6 GHz (3.8 GHz Turbo Boost)
Processor
CPU coresQuad-Core
CPU socketLGA 2011
TDP rating130 W
Processor codenameSandy Bridge-E
Level 2 cache4 × 256 KB
Level 3 cache10 MB
Process node32 nm
CPU instruction set64-Bit
Hyper-ThreadingYes
Virtualization supportYes
Memory
Supported memory speedSupport 4 channels DDR3 1600
Power
Rated voltage0.6 V - 1.35 V
In the box
Included coolerNot included - Processor Only
More details
DMI5 GT/s
Multimedia instructionSSE4.2, AVX

Questions about this item

Should I pick the 3.6 GHz or 3.8 GHz figure when comparing this Core i7-3820 to other CPUs?

The processor runs at a base frequency of 3.6 GHz and can reach 3.8 GHz with Turbo Boost when thermal headroom allows, so use 3.6 GHz for sustained-load comparisons.

What does the 130 W thermal design power mean for my cooler choice?

A 130 W TDP indicates the heat the cooling solution must dissipate under load; you will need a CPU cooler rated for at least 130 W because none is included in the box.

Which memory standard does the LGA 2011 memory controller support and at what speed?

The integrated controller supports quad-channel DDR3 at 1600 MT/s, so populate four DIMM slots with matching DDR3-1600 modules for full bandwidth.

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