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Intel

Core i7-3820

▲ 54162 ▼

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

Average Bench: 73.4% (233rd of 1264)

more Based on 29,128 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: 61%Average: 73.4% Great: 84%
Gaming
Gaming 73%
Battleship
Desktop
Desktop 77%
Battleship
Workstation
Workstation 59%
Gunboat

Popular builds with this CPU

Good average bench

The Intel Core i7-3820 averaged 26.5% 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 87.2Pts
Avg. Single Core Mixed Speed 95Pts

Good consistency

The range of scores (95th - 5th percentile) for the Intel Core i7-3820 is 23.1%. 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 477Pts
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Average Bench

(Based on 29,128 samples)
Rank 23373.4%
Min Avg Max
77.5 Memory 87.2 95.4
70 1-Core 95 118
134 2-Core 186 231
73.2% 123 Pts
Min Avg Max
236 4-Core 325 417
337 8-Core 477 595
51.7% 401 Pts
Min Avg Max
376 64-Core 485 599
32.5% 485 Pts
User Benchmarks Bench Normal Heavy Server
The fastest CPU (mainstream) averages a speed of 100%
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 4 GHz (avg)
78.8% Very good
Memory 94.2
1-Core 100
2-Core 207
79% 134 Pts
4-Core 343
8-Core 517
55% 430 Pts
64-Core 521
35% 521 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.8 GHz (avg)
76.9% Very good
Memory 89.9
1-Core 103
2-Core 202
78% 132 Pts
4-Core 345
8-Core 510
55% 427 Pts
64-Core 518
35% 518 Pts
CPUSocket, 1 CPU, 4 cores, 4 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
72.7% Very good
Memory 89.7
1-Core 85.2
2-Core 182
71% 119 Pts
4-Core 326
8-Core 311
44% 318 Pts
64-Core 329
22% 329 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
71.3% Very good
Memory 87.6
1-Core 95.3
2-Core 173
72% 119 Pts
4-Core 302
8-Core 410
46% 356 Pts
64-Core 452
30% 452 Pts
CPU 1, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
69.3% Good
Memory 85.8
1-Core 90.8
2-Core 178
71% 118 Pts
4-Core 287
8-Core 425
46% 356 Pts
64-Core 405
27% 405 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.8 GHz (avg)
68.7% Good
Memory 92.9
1-Core 97.9
2-Core 179
75% 123 Pts
4-Core 242
8-Core 448
43% 345 Pts
64-Core 461
31% 461 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
68% Good
Memory 81.6
1-Core 87.6
2-Core 174
68% 114 Pts
4-Core 294
8-Core 454
48% 374 Pts
64-Core 427
29% 427 Pts
CPU 1, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
66.5% Good
Memory 83.1
1-Core 89.5
2-Core 157
67% 110 Pts
4-Core 272
8-Core 380
42% 326 Pts
64-Core 408
27% 408 Pts
29,128 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 33,181,856 CPUs tested.

 Prices

AmazonUS $3007 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 1,233 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 60%
Gunboat
Desktop
Desktop 79%
Battleship
Workstation
Workstation 49%
Yacht

Motherboard: Asus P9X79 - $300

CPU
Core i7-3820Intel  $300Bench 73%, 29,128 samples541x
GPU
GTX 1070Nvidia  $415Bench 78%, 913,064 samples90x
GTX 1060-6GBNvidia  $267Bench 57%, 956,584 samples70x
GTX 970Nvidia  $428Bench 52%, 604,200 samples65x
SSD
850 Evo 250GBSamsung  $85Bench 104%, 699,388 samples55x
850 Evo 500GBSamsung  $135Bench 111%, 511,546 samples43x
860 Evo 500GBSamsung  $67Bench 106%, 405,692 samples41x
RAM
HyperX DDR3 1600 C9 4x4GBKingstonBench 56%, 19,211 samples47x
Vengeance DDR3 1600 C9 4x4GBCorsairBench 53%, 16,077 samples34x
Savage DDR3 2400 C11 2x8GBHyperXBench 63%, 17,642 samples13x
EDIT WITH CUSTOM PC BUILDER Value: 52% - Above average Total price: $1,100

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.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
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  • - Share your opinion by voting.
Processor Rankings (Price vs Performance) September 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™ i7-3820 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
6,886

Liked (edit your comment) Add link

2 months ago.

AUS-User
Avatar level
2,926

Good

26 days ago.

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

ARG-User
Avatar level
2,588

Excellent

22 months ago.

i love this processador !! i have 4700 ghz

ZAF-User
Avatar level
2,006

Excellent

2 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
1,874

Average

20 months ago.

...but old, i7 8700k more faster

DNK-User
Avatar level
1,702

Poor

1 month 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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Age: 6 years

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1264 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
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)?
What is the GeekBench score?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-9600K $193Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $145Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $300Nvidia RTX 2070S (Super) $500Samsung 860 Evo 250GB $43
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $66SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $64SanDisk Extreme 32GB $30
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Extreme 16GB $28
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