Average Bench: 74% (74th of 1182)

Based on 56,588 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: 74% Great: 92%
Gaming
Gaming 74%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 63%
Destroyer

Good average bench

The Intel Core i7-5820K averaged 25.9% 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 107Pts
Avg. Dual Core Mixed Speed 214Pts

Above average consistency

The range of scores (95th - 5th percentile) for the Intel Core i7-5820K is 32.7%. 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 845Pts
Avg. Octa Core Mixed Speed 672Pts
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Average Bench

(Based on 56,588 samples)
Min Avg Max
86.2 1-Core 107 131
175 2-Core 214 260
75.4% 160 Pts
Min Avg Max
331 4-Core 418 519
535 8-Core 672 830
69.2% 545 Pts
Min Avg Max
699 64-Core 845 1,027
56.7% 845 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 3.5 GHz (avg)
1-Core 131
2-Core 258
92% 195 Pts
4-Core 498
8-Core 846
85% 672 Pts
64-Core 988
66% 988 Pts
SOCKET 2011, 1 CPU, 6 cores, 12 threads
Base clock 3.3 GHz
1-Core 71.5
2-Core 133
49% 102 Pts
4-Core 371
8-Core 722
68% 547 Pts
64-Core 904
61% 904 Pts
56,588 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,369,474 CPUs tested.

 Prices

Approx. $389 @ launch in Aug '14
BHPhotoUS $39122 months
EbayUS $41029 mins
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Typical Core i7-5820K Builds (Compare 3,864 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 61%
Destroyer
Desktop
Desktop 73%
Battleship
Workstation
Workstation 60%
Gunboat

Motherboard: Asus X99-A - $240

EDIT WITH CUSTOM PC BUILDER Value: 49% - Average Total price: $1,304

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

  • - Download and run UserBenchMark.
  • - 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.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
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  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.
Processor Rankings (Price vs Performance) August 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical gamers and desktop users. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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 4 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

4 months ago.

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


Excellent

8 days ago.

Bought when first came out. Been running at 4.250 OC since. Overclocked still matches and does better then a I7 8600 has been a amazing value chip compare to what we see on offer today.


Excellent

4 mins ago.

daed 5820k not good Effective Speed


Excellent

18 months 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

15 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

4 years ago.


Excellent

11 months ago.

Is super prossesor dont need say match take it


Terrible

23 months ago.

low perfomance for that price


Terrible

20 months 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

10 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

9 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.


Excellent

6 days ago.

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


Your
opinion?
1182 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

 Best User Rated

The Best.
CPUGPUSSD
AMD Ryzen 5 3600 $198Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
Intel Core i5-9600K $230Nvidia GTX 1060-6GB $270Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $233Nvidia GTX 1080-Ti $750Samsung 850 Pro 256GB $195
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $78SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $695SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3200 C16 2x8GB $82SanDisk Extreme 16GB $24
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