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Intel

Core i7-3820

▲ 51201 ▼

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

Average Bench: 73.5% (287th of 1358)

more Based on 42,022 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: 63%Average: 73.5% Great: 83%
Gaming
Gaming 74%
Battleship
Desktop
Desktop 76%
Battleship
Workstation
Workstation 60%
Gunboat

Popular builds with this CPU

Good average bench

The Intel Core i7-3820 averaged 26.4% 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. Memory Latency 85.4Pts
Avg. Single Core Mixed Speed 96Pts

Good consistency

The range of scores (95th - 5th percentile) for the Intel Core i7-3820 is 20.4%. 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 508Pts
Avg. Octa Core Mixed Speed 503Pts
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Average Bench

(Based on 42,022 samples)
Rank 28773.5%
Min Avg Max
75.8 Memory 85.4 93.7
69 1-Core 96 116
150 2-Core 189 227
73.2% 123 Pts
Min Avg Max
260 4-Core 334 413
369 8-Core 503 612
53.7% 418 Pts
Min Avg Max
387 64-Core 508 614
34.1% 508 Pts
User Benchmarks Bench Normal Heavy Server
The fastest CPU (mainstream) averages a speed of 100%
CPU 1, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 4.05 GHz (avg)
79.1% Very good
Memory 88.9
1-Core 110
2-Core 219
81% 139 Pts
4-Core 374
8-Core 584
61% 479 Pts
64-Core 581
39% 581 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 4.3 GHz (avg)
78.2% Very good
Memory 82.4
1-Core 115
2-Core 207
79% 135 Pts
4-Core 399
8-Core 573
63% 486 Pts
64-Core 557
37% 557 Pts
CPU 1, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
76.7% Very good
Memory 95.4
1-Core 96.6
2-Core 179
76% 124 Pts
4-Core 314
8-Core 526
53% 420 Pts
64-Core 533
36% 533 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
73.5% Very good
Memory 83.5
1-Core 90.9
2-Core 186
71% 120 Pts
4-Core 343
8-Core 508
55% 426 Pts
64-Core 526
35% 526 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
70.6% Very good
Memory 83.1
1-Core 99.8
2-Core 199
75% 127 Pts
4-Core 314
8-Core 528
53% 421 Pts
64-Core 527
35% 527 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.8 GHz, turbo 3.9 GHz (avg)
67.9% Good
Memory 85.3
1-Core 78
2-Core 144
64% 103 Pts
4-Core 277
8-Core 382
43% 329 Pts
64-Core 366
25% 366 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.55 GHz (avg)
67.6% Good
Memory 77.2
1-Core 83.5
2-Core 165
65% 108 Pts
4-Core 312
8-Core 487
51% 400 Pts
64-Core 498
33% 498 Pts
42,022 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 54,507,411 CPUs tested.

 Prices

AmazonUS $2006 mins
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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 3,494 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 41%
Speed boat
Desktop
Desktop 79%
Battleship
Workstation
Workstation 34%
Sail boat

Motherboard: Asus P9X79 - $300

CPU
Core i7-3820Intel  $200Bench 74%, 42,022 samples1,427x
GPU
GTX 970Nvidia  $125Bench 50%, 794,147 samples212x
GTX 1060-6GBNvidia  $290Bench 57%, 1,347,327 samples207x
GTX 1070Nvidia  $138Bench 80%, 1,277,123 samples202x
SSD
850 Evo 500GBSamsung  $140Bench 111%, 759,910 samples134x
850 Evo 250GBSamsung  $100Bench 104%, 900,642 samples130x
860 Evo 500GBSamsung  $80Bench 106%, 751,699 samples123x
RAM
HyperX DDR3 1600 C9 4x4GBKingstonBench 56%, 28,252 samples109x
Vengeance DDR3 1600 C9 4x4GBCorsairBench 53%, 20,667 samples87x
HyperX DDR3 1600 C10 2x8GBKingstonBench 50%, 19,357 samples33x
EDIT WITH CUSTOM PC BUILDER Value: 66% - Good Total price: $765

Popular Core i7-3820 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
Processor Rankings (Price vs Performance) August 2022 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
8,832

Liked (edit your comment) Add link

7 months ago.

AUS-User
Avatar level
3,558

Good

23 months ago.

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

ARG-User
Avatar level
2,998

Excellent

3 years ago.

i love this processador !! i have 4700 ghz

ZAF-User
Avatar level
2,508

Excellent

4 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
2,204

Average

3 years ago.

...but old, i7 8700k more faster

DNK-User
Avatar level
2,008

Good

16 months 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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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?
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What is quad core floating point speed?
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ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-12600K $275Nvidia RTX 3060-Ti $470Crucial MX500 250GB $40
Intel Core i5-12400F $160Nvidia RTX 3070 $535Samsung 850 Evo 120GB $106
Intel Core i7-12700K $350Nvidia RTX 3050 $325Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $58SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $33Corsair Vengeance LPX DDR4 3000 C15 2x8GB $64SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $449SanDisk Ultra Fit 32GB $16
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