Intel Core i7-5820K Review & Specs

Intel Core i7-5820K Haswell-E 6-Core 3.3GHz LGA 2011-v3 140W BX80648I75820K

Intel Core i7-5820K Haswell-E 6-Core 3.3GHz LGA 2011-v3 140W BX80648I75820K

- Intel

★ ★ ★ ★ ★
(195 reviews)

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Core I7-5820K PROC FC-LGA12A
Turbo Boost Technology 2.0
Supported memory: DDR4-2133
Go to the next level of multi-core performance
Intel smart cache
Intel Quick Path interconnect
Integrated memory controller
Intel Hd Boost

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Specs Overview

Model BX80648I75820K
Release Date August 2014

* First availability for purchase, it may not correspond to the actual market launch date.

Series Core i7 4th Gen
Core Name Haswell-E
Socket LGA2011-3
Integrated Graphics None
CPU Cores 6
CPU Threads 12
CPU Clock Rate 3300MHz
CPU Turbo Clock Rate 3600MHz
TDP 140W
CPU Cooler included
Manufacturing Process 22 nm
Maximum Supported Memory 64GB
Cache L3 15MB

Intel Core i7-5820K Performance comparison with similar Processors

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Status Launched
Launch Date Q3'14
Processor Number i7-5820K
Intel® Smart Cache 15 MB
Intel® QPI Speed 0 GT/s
# of QPI Links 0
Instruction Set 64-bit
Instruction Set Extensions SSE4.2, AVX 2.0, AES
Embedded Options Available

Lithography 22 nm
Scalability 1S Only
Recommended Customer Price BOX : $396.00
TRAY: $389.00
Conflict Free Yes
Datasheet Link


# of Cores 6
# of Threads 12
Processor Base Frequency 3.3 GHz
Max Turbo Frequency 3.6 GHz
TDP 140 W


Memory Specifications
Max Memory Size (dependent on memory type) 64 GB
Memory Types DDR4 1333/1600/2133
Max # of Memory Channels 4
Max Memory Bandwidth 68 GB/s
ECC Memory Supported



Graphics Specifications
Processor Graphics None


Expansion Options
PCI Express Revision 3.0
Max # of PCI Express Lanes 28


Package Specifications
Max CPU Configuration 1
TCASE 66.8
Package Size 52.5mm x 45.0mm
Sockets Supported LGA2011-v3
Low Halogen Options Available See MDDS


Advanced Technologies
Intel® Turbo Boost Technology 2.0
Intel® vPro Technology

Intel® Hyper-Threading Technology

Intel® Virtualization Technology (VT-x) Yes
Intel® Virtualization Technology for Directed I/O (VT-d)

Intel® VT-x with Extended Page Tables (EPT)

Intel® 64

Idle States Yes
Enhanced Intel SpeedStep® Technology

Intel® Demand Based Switching

Thermal Monitoring Technologies Yes
Intel® Identity Protection Technology Yes
Intel® Smart Response Technology Yes


Intel® Data Protection Technology
Intel® AES New Instructions



Intel® Platform Protection Technology
Trusted Execution Technology

Execute Disable Bit Yes

Critic Reviews


Intel released the Haswell-E line a few months ago, and it has been quite the talk in terms of the move to the newer and...


Read the full review

That the fastest processors are currently made by Intel is not really a secret, but what is the best choice when you want to spend up to £ 50, £100 or £150? To answer that question we conducted a megatest of 57 current AMD and Intel CPUs. From two...

Read the full review

With the launch of Haswell-E, Intel has introduced three new desktop processors and an updated chipset to support them, called X99. Although the new chips are based on a similar 2011-pin layout to the previous Ivy Bridge-E enthusiast processors, these...

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