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Intel

Core i7-3820

▲ 51198 ▼

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

Average Bench: 73% (284th of 1335)

more Based on 40,248 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: 64%Average: 73% Great: 82%
Gaming
Gaming 73%
Battleship
Desktop
Desktop 76%
Battleship
Workstation
Workstation 59%
Gunboat

Popular builds with this CPU

Good average bench

The Intel Core i7-3820 averaged 26.9% 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. Memory Latency 85Pts
Avg. Single Core Mixed Speed 95.2Pts

Very good consistency

The range of scores (95th - 5th percentile) for the Intel Core i7-3820 is just 18.4%. 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 504Pts
Avg. Octa Core Mixed Speed 498Pts
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Average Bench

(Based on 40,248 samples)
Rank 28473%
Min Avg Max
75.7 Memory 85 94.2
71.1 1-Core 95.2 112
149 2-Core 187 220
72.7% 122 Pts
Min Avg Max
261 4-Core 331 403
380 8-Core 498 599
53.3% 415 Pts
Min Avg Max
411 64-Core 504 599
33.9% 504 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 3.8 GHz (avg)
78.6% Very good
Memory 94.7
1-Core 99.9
2-Core 188
77% 127 Pts
4-Core 338
8-Core 534
56% 436 Pts
64-Core 533
36% 533 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.4 GHz, turbo 3.2 GHz (avg)
77.4% Very good
Memory 92.2
1-Core 113
2-Core 211
82% 139 Pts
4-Core 338
8-Core 558
57% 448 Pts
64-Core 564
38% 564 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.75 GHz (avg)
76.9% Very good
Memory 91.9
1-Core 96.5
2-Core 194
76% 128 Pts
4-Core 334
8-Core 528
55% 431 Pts
64-Core 531
36% 531 Pts
CPUSocket, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
76.2% Very good
Memory 92.1
1-Core 99.7
2-Core 187
76% 126 Pts
4-Core 326
8-Core 495
53% 411 Pts
64-Core 491
33% 491 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.5 GHz (avg)
75.8% Very good
Memory 89.9
1-Core 74
2-Core 185
69% 116 Pts
4-Core 334
8-Core 488
53% 411 Pts
64-Core 454
30% 454 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.55 GHz (avg)
74.4% Very good
Memory 85.5
1-Core 87.7
2-Core 195
72% 123 Pts
4-Core 342
8-Core 525
55% 433 Pts
64-Core 520
35% 520 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.7 GHz (avg)
72.7% Very good
Memory 82.5
1-Core 101
2-Core 191
74% 125 Pts
4-Core 339
8-Core 521
55% 430 Pts
64-Core 517
35% 517 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.5 GHz (avg)
71% Very good
Memory 78.8
1-Core 85.5
2-Core 183
68% 116 Pts
4-Core 341
8-Core 527
56% 434 Pts
64-Core 531
36% 531 Pts
40,248 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 49,652,081 CPUs tested.

 Prices

AmazonUS $3506 months
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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 3,060 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  $350Bench 73%, 40,248 samples1,261x
GPU
GTX 970Nvidia  $340Bench 51%, 783,151 samples185x
GTX 1060-6GBNvidia  $290Bench 57%, 1,237,858 samples182x
GTX 1070Nvidia  $138Bench 80%, 1,188,482 samples181x
SSD
850 Evo 500GBSamsung  $160Bench 110%, 708,975 samples127x
850 Evo 250GBSamsung  $100Bench 103%, 898,784 samples114x
860 Evo 500GBSamsung  $80Bench 107%, 716,423 samples109x
RAM
HyperX DDR3 1600 C9 4x4GBKingstonBench 56%, 29,001 samples92x
Vengeance DDR3 1600 C9 4x4GBCorsairBench 53%, 20,189 samples82x
HyperX DDR3 1600 C10 2x8GBKingstonBench 51%, 18,696 samples28x
EDIT WITH CUSTOM PC BUILDER Value: 46% - Average Total price: $1,150

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.

UserBenchmark of the month

Gaming Desktop ProGaming

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) January 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
8,394

Liked (edit your comment) Add link

5 days ago.

AUS-User
Avatar level
3,406

Good

16 months ago.

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

ARG-User
Avatar level
2,912

Excellent

3 years ago.

i love this processador !! i have 4700 ghz

ZAF-User
Avatar level
2,394

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
2,140

Average

2 years ago.

...but old, i7 8700k more faster

DNK-User
Avatar level
1,936

Good

9 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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Ready to retire
Age: 8 years

Speed Comparisons

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1335 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?
What is single core mixed CPU speed?
What is quad core mixed CPU speed?
What is quad core floating point speed?
What is quad core integer speed?
What is single core floating point speed?
What is single core integer speed?
What is the GeekBench single core score?
What is a CPU?
What is the effective CPU speed index?
What is overclocking?
What is thermal design power (TDP)?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-12600K $289Nvidia RTX 3060-Ti $400Crucial MX500 250GB $50
Intel Core i5-12400F $184Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i5-11600K $245Nvidia RTX 3080 $700Samsung 850 Evo 120GB $200
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $63SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $74SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $470SanDisk Ultra Fit 32GB $16
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