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Intel

Core i7-3820

▲ 51189 ▼

4 Cores, 8 Threads @3.6 GHz, Sandy Bridge E.
Release date ≤ Q4 2013.

Average Bench: 72.9% (265th of 1305)

more Based on 37,508 user benchmarks.  Devices: BFEBFBFF000206D7, , 0FEBFBFF000206D7, BFEBFBFF000206D6, 1FABFBFF000206D7 Models: Intel(R) Core(TM) i7-3820 CPU @ 3.60GHz, Intel(R) Core(TM) i7-3820 CPU @ 3.60 GHz, Intel Core i7-3820 CPU @ 3.60GHz, Intel(R) Core(TM) i7-3820 CPU @ 3.60GHz
Poor: 62%Average: 72.9% Great: 83%
Gaming
Gaming 73%
Battleship
Desktop
Desktop 76%
Battleship
Workstation
Workstation 58%
Gunboat

Popular builds with this CPU

Good average bench

The Intel Core i7-3820 averaged 27.0% 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. Memory Latency 86Pts
Avg. Single Core Mixed Speed 94.9Pts

Good consistency

The range of scores (95th - 5th percentile) for the Intel Core i7-3820 is 20.6%. This is a relatively narrow range which indicates that the Intel Core i7-3820 performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Multi Core Mixed Speed 485Pts
Avg. Octa Core Mixed Speed 481Pts
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Average Bench

(Based on 37,508 samples)
Rank 26572.9%
Min Avg Max
76.8 Memory 86 94.5
71.5 1-Core 94.9 114
146 2-Core 186 225
72.9% 122 Pts
Min Avg Max
251 4-Core 325 401
366 8-Core 481 580
51.8% 403 Pts
Min Avg Max
384 64-Core 485 588
32.6% 485 Pts
User Benchmarks Bench Normal Heavy Server
The fastest CPU (mainstream) averages a speed of 100%
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 4.2 GHz (avg)
84.9% Excellent
Memory 94.6
1-Core 109
2-Core 220
83% 141 Pts
4-Core 412
8-Core 556
63% 484 Pts
64-Core 554
37% 554 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 4.3 GHz (avg)
83.5% Excellent
Memory 84.8
1-Core 114
2-Core 214
80% 138 Pts
4-Core 454
8-Core 583
68% 518 Pts
64-Core 588
40% 588 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.75 GHz (avg)
81.3% Excellent
Memory 93.5
1-Core 94.6
2-Core 196
76% 128 Pts
4-Core 380
8-Core 501
58% 441 Pts
64-Core 506
34% 506 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.75 GHz (avg)
79.7% Very good
Memory 95.8
1-Core 83.3
2-Core 187
74% 122 Pts
4-Core 344
8-Core 508
55% 426 Pts
64-Core 494
33% 494 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
77.7% Very good
Memory 87
1-Core 100
2-Core 200
76% 129 Pts
4-Core 376
8-Core 498
57% 437 Pts
64-Core 504
34% 504 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.8 GHz, turbo 3.9 GHz (avg)
74.6% Very good
Memory 88.1
1-Core 98.5
2-Core 194
75% 127 Pts
4-Core 330
8-Core 494
53% 412 Pts
64-Core 494
33% 494 Pts
37,508 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 41,981,930 CPUs tested.

 Prices

AmazonUS $3007 hrs
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Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money.

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical Core i7-3820 Builds (Compare 2,263 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 60%
Destroyer
Desktop
Desktop 79%
Battleship
Workstation
Workstation 50%
Yacht

Motherboard: Asus P9X79 - $300

CPU
Core i7-3820Intel  $300Bench 73%, 37,508 samples948x
GPU
GTX 1070Nvidia  $330Bench 80%, 1,088,853 samples155x
GTX 970Nvidia  $340Bench 51%, 677,318 samples141x
GTX 1060-6GBNvidia  $290Bench 57%, 1,119,893 samples128x
SSD
850 Evo 500GBSamsung  $140Bench 111%, 696,417 samples100x
860 Evo 500GBSamsung  $60Bench 106%, 592,209 samples81x
850 Evo 250GBSamsung  $100Bench 104%, 758,733 samples81x
RAM
HyperX DDR3 1600 C9 4x4GBKingstonBench 55%, 24,191 samples73x
Vengeance DDR3 1600 C9 4x4GBCorsairBench 53%, 18,761 samples61x
RipjawsX DDR3 1600 C9 4x4GBG.SKILLBench 56%, 20,142 samples20x
EDIT WITH CUSTOM PC BUILDER Value: 56% - Above average Total price: $1,070

Popular Core i7-3820 compatible motherboards:

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

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  • - 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.
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  • - Share your opinion by voting.
Processor Rankings (Price vs Performance) April 2021 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™ i7-3820 Processor (10M Cache, up to 3.80 GHz)
Code NameSandy Bridge E
Launch DateQ1'12
Processor Numberi7-3820
# of Cores4
# of Threads8
Cache10 MB SmartCache
Instruction Set64-bit
Instruction Set ExtensionsSSE4.2, AVX, AES
Embedded Options AvailableNo
Lithography32 nm
VID Voltage Range0.600V – 1.350V
Recommended PriceN/A
Clock Speed3.6 GHz
Max Turbo Frequency3.8 GHz
Bus Speed5 GT/s DMI2
Max TDP130 W

Memory

Max Memory Size64 GB
Memory TypesDDR3 1066/1333/1600
Memory Channels4
Memory Bandwidth51.2 GB/s
ECC Memory SupportedNo

Expansion Options

PCI Express Revision2.0
Max # of PCI Express Lanes40

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

Platform Protection

Execute Disable BitYes
Trusted Execution TechNo

 Comments

Added n/a ago.
USA-User
Avatar level
7,714

Excellent (edit your comment) Add link

3 months ago.

AUS-User
Avatar level
3,168

Good

7 months ago.

Done an amazing job for 5 years. Still plays CPU intensive games with no problem.

ARG-User
Avatar level
2,744

Excellent

2 years ago.

i love this processador !! i have 4700 ghz

ZAF-User
Avatar level
2,194

Excellent

3 years ago.

Bought this at launch and still have it. I've upgraded my graphics card twice in that time and this processor keeps on delivering so never saw the the need to upgrade the cpu. Maybe in another 3 years I will need to but for now...it's still great.

SVK-User
Avatar level
2,050

Average

2 years ago.

...but old, i7 8700k more faster

DNK-User
Avatar level
1,840

Good

14 days ago.

Also bought this at launch and still running it, but it seems that it's time to upgrade it, my setup is starting to bottleneck with this at the moment...

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1305 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

Processors FAQ
AMD vs Intel: Gaming performance 2012-2021
How does IPC compare between AMD's Ryzen and Intel's Kaby Lake?
What is multi core mixed speed?
What is multi core integer speed?
What is multi core floating point speed?
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What is quad core floating point speed?
What is quad core integer speed?
What is single core floating point speed?
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What is overclocking?
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ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-11400F $180Nvidia RTX 3070 $500Crucial MX500 250GB $49
Intel Core i5-11600K $265Nvidia RTX 3060-Ti $400Samsung 850 Evo 120GB $78
Intel Core i7-10700K $315Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $50
HDDRAMUSB
Seagate Barracuda 1TB (2016) $38Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $73SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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