Average Bench: 71.5% (115th of 1206)

Based on 71,532 user benchmarks.  Devices: BFEBFBFF000306F2, , 0F8BFBFF000306F2, 1FABFBFF000306F2 Model: Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz

The Intel Core i7-5820K is the cheapest of three (5820K,5930K,5960X) new Haswell-E prosumer/enthusiast processors. The 5820K sports six physical cores and twelve threads which allow for enormous processing throughput. Unfortunately Intel have somewhat handicapped the 5820K by setting its base clock at just 3.3 GHz, 0.7GHz lower than the class leading 4790K. Comparing the 4790K and 5820K shows that the cheaper i7-4790K is significantly faster at both single and dual threaded workloads. The additional two cores found in the 5820K are not relevant to general computing and as such the 5820K probably makes a better server rather than consumer proposition. The Haswell-E X99 architecture also requires DDR4 RAM which is currently far more expensive than DDR3. Overall the 5820K is a very expensive option and probably best avoided by the vast majority of consumers.  [Sep '14 CPUPro]

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Poor: 59%Average: 71.5% Great: 88%
Gaming
Gaming 72%
Battleship
Desktop
Desktop 72%
Battleship
Workstation
Workstation 61%
Destroyer

Good average bench

The Intel Core i7-5820K averaged 28.4% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. Single Core Mixed Speed 104Pts
Avg. Dual Core Mixed Speed 206Pts

Good consistency

The range of scores (95th - 5th percentile) for the Intel Core i7-5820K is 29%. This is a relatively narrow range which indicates that the Intel Core i7-5820K performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Multi Core Mixed Speed 824Pts
Avg. Octa Core Mixed Speed 654Pts
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Average Bench

(Based on 71,532 samples)
Min Avg Max
82.6 1-Core 104 129
168 2-Core 206 256
73.1% 155 Pts
Min Avg Max
316 4-Core 403 507
539 8-Core 654 817
67.1% 528 Pts
Min Avg Max
695 64-Core 824 1,016
55.3% 824 Pts
User Benchmarks Bench Normal Heavy Extreme
The fastest CPU (mainstream) averages a speed of 100%
SOCKET 2011, 1 CPU, 6 cores, 12 threads
Base clock 3.3 GHz, turbo 3.9 GHz (avg)
1-Core 130
2-Core 260
92% 195 Pts
4-Core 530
8-Core 869
89% 699 Pts
64-Core 1,048
70% 1,048 Pts
SOCKET 0, 1 CPU, 6 cores, 12 threads
Base clock 3.3 GHz, turbo 3.85 GHz (avg)
1-Core 121
2-Core 242
85% 181 Pts
4-Core 476
8-Core 767
79% 622 Pts
64-Core 954
64% 954 Pts
SOCKET 2011, 1 CPU, 6 cores, 12 threads
Base clock 3.3 GHz, turbo 3.7 GHz (avg)
1-Core 98.3
2-Core 236
76% 167 Pts
4-Core 459
8-Core 721
75% 590 Pts
64-Core 848
57% 848 Pts
SOCKET 0, 1 CPU, 6 cores, 12 threads
Base clock 3.3 GHz, turbo 3.4 GHz (avg)
1-Core 108
2-Core 207
75% 158 Pts
4-Core 409
8-Core 633
67% 521 Pts
64-Core 789
53% 789 Pts
SOCKET 2011, 1 CPU, 6 cores, 12 threads
Base clock 3.3 GHz, turbo 3.3 GHz (avg)
1-Core 99.3
2-Core 198
70% 149 Pts
4-Core 381
8-Core 572
61% 477 Pts
64-Core 736
49% 736 Pts
71,532 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 24,084,916 CPUs tested.

 Prices

Approx. $389 @ launch in Aug '14
EbayUS $22019 mins
BHPhotoUS $3912 years
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Typical Core i7-5820K Builds (Compare 4,612 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 52%
Yacht
Desktop
Desktop 70%
Battle cruiser
Workstation
Workstation 57%
Gunboat

Motherboard: Asus X99-A - $240

EDIT WITH CUSTOM PC BUILDER Value: 43% - Average Total price: $1,167

Popular Core i7-5820K compatible motherboards:

How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

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  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.
Processor Rankings (Price vs Performance) January 2020 CPU Rankings.

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Specifications

Essentials

DescriptionIntel® Core™ i7-5820K Processor (15M Cache, up to 3.60 GHz)
Code NameHaswell E
Launch DateQ3'14
Processor Numberi7-5820K
# of Cores6
# of Threads12
Cache15 MB SmartCache
Instruction Set64-bit
Instruction Set ExtensionsSSE4.2, AVX 2.0, AES
Embedded Options AvailableNo
Lithography22 nm
Recommended Price$389.00 - $396.00
Clock Speed3.3 GHz
Max Turbo Frequency3.6 GHz
Bus Speed0 GT/s
Scalability1S Only
Max TDP140 W

Graphics

Processor GraphicsNone

Memory

Max Memory Size64 GB
Memory TypesDDR4 1333/1600/2133
Memory Channels4
Memory Bandwidth68 GB/s
ECC Memory SupportedNo

Expansion Options

PCI Express Revision3.0
Max # of PCI Express Lanes28

Data Protection

AES New InstructionsYes

Advanced Technologies

Virtualization Tech (VT-x)Yes
Intel 64Yes
Idle StatesYes
Enhanced Intel SpeedStep® TechYes
Thermal Monitoring TechnologiesYes
Turbo Boost Tech2.0
Hyper-Threading TechYes
Virtualization for Directed I/O (VT-d)Yes
VT-x with Extended Page Tables (EPT)Yes
Demand Based SwitchingNo
vPro TechNo
Identity Protection TechYes
Smart Response TechYes

Package

Package Size52.5mm x 45.0mm
Max CPU Configuration1
Sockets SupportedLGA2011-v3

Platform Protection

Execute Disable BitYes
Trusted Execution TechNo

 Comments

LGA2011-V3

Added 5 years ago.

Excellent (edit your comment) Add link

1 month ago.

Comment 

Amazing processor. just upgraded from an AMD FX 8350. It’s paired with an MSI x99a gaming pro carbon motherboard, 16gb Geil EVO x ram, and an AMD fury x. I’ve overclocked the CPU to 4.0ghz (haven’t felt the need to go faster), with a nzxt kraken x41 and my temps at idle are around 38*C and it never goes above 55*C when gaming. When I’m just messing around in windows or on the web, I haven’t noticed a difference from my fx8350, but gaming on CPU intensive games, this chip blows the former away. (GPU intensive games I couldn’t tell a difference, thank you fury x btw). I was trying to hold out until AMD released Zen, but I pulled the trigger and bought an i7. If I could do it over again, I would.—Nov '16


Excellent

8 days ago.

Compared to the 6800k, much better overclocked now Haswell-e is mature


Good

1 month ago.

Robust CPU, 4.2, 1.2 v, idle 30 top 65


Terrible

2 days ago.

daed 5820k not good Effective Speed


Excellent

1 month ago.

Absolutely Nice CPU! In Use with Asrock X99 extreme6/ac, and 16GB HyperX Fury DDRs 2444mhz Ram and an MSI GTX750 2GB DDR5!


Terrible

21 months ago.

An excellent overclocker for its price, the additional two cores will be definitely beneficial for any video rendering or load heavy tasks.


Outstanding

5 years ago.


Excellent

3 months ago.

Is super prossesor dont need say match take it


Terrible

2 years ago.

low perfomance for that price


Terrible

2 years ago.

old


Outstanding

3 years ago.

Great cpu . Good value,exellent speed and overclocking . (My oc is 4.9 Ghz on costum water cooling)


Good

15 months ago.

This processor has server med very well and handles anything I throw it at with no issues. Easily clocks from 3.3 to 3.8 without any issues. I am watercooled however with corsair H110i.


Excellent

5 months ago.

Great temperatures under HUGE overclock. (upwards of 25% ~4.5GHz!) Still stands strong in 2019. Cons - X99 platform, which means $$$


Excellent

15 months ago.

Built it new around 2015. Currently running at 4.2Ghz @1.2v on air. Game temps are around 50-60 and 70 max in stress tests. I could go higher with better cooling I suppose.


Your
opinion?
1206 Processors (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different CPUs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

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Intel Core i7-9700K $355Nvidia RTX 2060 $340Samsung 850 Pro 512GB $204
HDDRAMUSB
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WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $643SanDisk Ultra Fit 32GB $16
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