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Intel

Core i7-3820

▲ 51179 ▼

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

Average Bench: 73.6% (226th of 1276)

more Based on 35,015 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: 73.6% Great: 83%
Gaming
Gaming 74%
Battleship
Desktop
Desktop 77%
Battleship
Workstation
Workstation 59%
Gunboat

Popular builds with this CPU

Good average bench

The Intel Core i7-3820 averaged 26.3% 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 87.1Pts
Avg. Single Core Mixed Speed 95.9Pts

Very good consistency

The range of scores (95th - 5th percentile) for the Intel Core i7-3820 is just 18.9%. 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 487Pts
Avg. Octa Core Mixed Speed 482Pts
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Average Bench

(Based on 35,015 samples)
Rank 22673.6%
Min Avg Max
79.6 Memory 87.1 95.2
78.5 1-Core 95.9 116
152 2-Core 188 227
73.6% 124 Pts
Min Avg Max
252 4-Core 327 405
374 8-Core 482 588
52.1% 404 Pts
Min Avg Max
401 64-Core 487 589
32.7% 487 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 3.7 GHz (avg)
83.6% Excellent
Memory 94.2
1-Core 124
2-Core 234
88% 151 Pts
4-Core 394
8-Core 625
65% 509 Pts
64-Core 621
42% 621 Pts
CPU 1, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 4.3 GHz (avg)
79.2% Very good
Memory 90.6
1-Core 108
2-Core 220
82% 140 Pts
4-Core 366
8-Core 564
60% 465 Pts
64-Core 565
38% 565 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.8 GHz, turbo 3.9 GHz (avg)
76.5% Very good
Memory 84.4
1-Core 100
2-Core 199
75% 128 Pts
4-Core 378
8-Core 496
57% 437 Pts
64-Core 502
34% 502 Pts
CPU 1, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 4 GHz (avg)
72.9% Very good
Memory 83.1
1-Core 102
2-Core 193
74% 126 Pts
4-Core 341
8-Core 478
53% 410 Pts
64-Core 512
34% 512 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.55 GHz (avg)
72.8% Very good
Memory 78.8
1-Core 94.9
2-Core 194
71% 123 Pts
4-Core 367
8-Core 489
56% 428 Pts
64-Core 460
31% 460 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
72.3% Very good
Memory 88.1
1-Core 91
2-Core 193
73% 124 Pts
4-Core 306
8-Core 466
50% 386 Pts
64-Core 474
32% 474 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
71.5% Very good
Memory 83.7
1-Core 87.9
2-Core 172
69% 114 Pts
4-Core 321
8-Core 458
50% 389 Pts
64-Core 453
30% 453 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.6 GHz (avg)
70.6% Very good
Memory 85.7
1-Core 99.9
2-Core 194
75% 127 Pts
4-Core 301
8-Core 451
48% 376 Pts
64-Core 492
33% 492 Pts
CPUSocket, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.6 GHz (avg)
69.7% Good
Memory 83.2
1-Core 57.8
2-Core 178
62% 106 Pts
4-Core 304
8-Core 476
50% 390 Pts
64-Core 475
32% 475 Pts
35,015 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 38,677,216 CPUs tested.

 Prices

AmazonUS $30016 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 1,909 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 60%
Destroyer
Desktop
Desktop 80%
Battleship
Workstation
Workstation 50%
Yacht

Motherboard: Asus P9X79 - $300

CPU
Core i7-3820Intel  $300Bench 74%, 35,015 samples809x
GPU
GTX 1070Nvidia  $330Bench 79%, 993,871 samples139x
GTX 970Nvidia  $340Bench 50%, 648,344 samples116x
GTX 1060-6GBNvidia  $290Bench 57%, 1,047,709 samples114x
SSD
850 Evo 500GBSamsung  $125Bench 111%, 615,795 samples88x
850 Evo 250GBSamsung  $70Bench 105%, 768,156 samples72x
860 Evo 500GBSamsung  $57Bench 107%, 478,856 samples71x
RAM
HyperX DDR3 1600 C9 4x4GBKingstonBench 56%, 24,323 samples68x
Vengeance DDR3 1600 C9 4x4GBCorsairBench 54%, 15,924 samples54x
RipjawsX DDR3 1600 C9 4x4GBG.SKILLBench 57%, 18,861 samples18x
EDIT WITH CUSTOM PC BUILDER Value: 57% - Above average Total price: $1,055

Popular Core i7-3820 compatible motherboards:

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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) January 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
7,350

Excellent (edit your comment) Add link

8 days ago.

AUS-User
Avatar level
3,058

Good

4 months ago.

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

ARG-User
Avatar level
2,684

Excellent

2 years ago.

i love this processador !! i have 4700 ghz

ZAF-User
Avatar level
2,118

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
1,990

Average

24 months ago.

...but old, i7 8700k more faster

DNK-User
Avatar level
1,768

Poor

5 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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Speed Comparisons

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1276 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 i5-10600K $260Nvidia RTX 3060-Ti $400Crucial MX500 250GB $47
Intel Core i5-9600K $219Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10400F $161Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $40
HDDRAMUSB
Seagate Barracuda 1TB (2016) $47Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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