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Intel

Core i7-3820

▲ 5659 ▼

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

VS

Average Bench: 67.1% (165th of 1129)

more Based on 15,617 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: 55%Average: 67.1% Great: 83%
Gaming
Gaming 67%
Battle cruiser
Desktop
Desktop 68%
Battle cruiser
Workstation
Workstation 49%
Yacht

Popular builds with this CPU

Above average average bench

The Intel Core i7-3820 averaged 32.8% 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

Multi Core Integer Speed 477Pts
Single Core Integer Speed 95.9Pts

Good consistency

The range of scores (95th - 5th percentile) for the Intel Core i7-3820 is 27.4%. This is a relatively narrow range which indicates that the Intel Core i7-3820 performs reasonably consistently under varying real world conditions.

Weaknesses

Multi Core Floating Point Speed 495Pts
Quad Core Floating Point Speed 328Pts
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Average Bench

(Based on 15,617 samples)
Rank 16567.1%
Min Avg Max
72.6 SC Int 95.9 119
74.3 SC Float 96.5 116
77.1 SC Mixed 96.3 119
77% 96.3 Pts
Min Avg Max
251 QC Int 323 408
263 QC Float 328 411
257 QC Mixed 326 404
73.8% 326 Pts
Min Avg Max
401 MC Int 477 579
420 MC Float 495 602
417 MC Mixed 495 601
73.3% 489 Pts
User Benchmarks Bench Single core Quad core Multi core
The fastest CPU (mainstream) averages a speed of 100%
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.65 GHz (avg)
80.2% Excellent
SC Int 122
SC Float 120
SC Mixed 106
93% 116 Pts
QC Int 416
QC Float 434
QC Mixed 403
95% 418 Pts
MC Int 595
MC Float 612
MC Mixed 605
90% 604 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz
80% Excellent
SC Int 121
SC Float 121
SC Mixed 122
97% 121 Pts
QC Int 380
QC Float 386
QC Mixed 372
86% 379 Pts
MC Int 593
MC Float 632
MC Mixed 629
92% 618 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz
71.8% Very good
SC Int 99.1
SC Float 100
SC Mixed 99.5
80% 99.5 Pts
QC Int 347
QC Float 356
QC Mixed 357
80% 353 Pts
MC Int 486
MC Float 500
MC Mixed 503
74% 496 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 3.8 GHz (avg)
68.7% Good
SC Int 99
SC Float 97.8
SC Mixed 97.9
79% 98.2 Pts
QC Int 319
QC Float 352
QC Mixed 335
76% 335 Pts
MC Int 480
MC Float 497
MC Mixed 498
74% 492 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.8 GHz, turbo 3.9 GHz (avg)
67.4% Good
SC Int 96.5
SC Float 96.5
SC Mixed 92.3
76% 95.1 Pts
QC Int 347
QC Float 350
QC Mixed 336
78% 344 Pts
MC Int 476
MC Float 492
MC Mixed 493
73% 487 Pts
LGA2011, 1 CPU, 4 cores, 8 threads
Base clock 3.6 GHz, turbo 4 GHz (avg)
67.1% Good
SC Int 103
SC Float 103
SC Mixed 102
82% 103 Pts
QC Int 311
QC Float 315
QC Mixed 313
71% 313 Pts
MC Int 509
MC Float 503
MC Mixed 514
76% 509 Pts
SOCKET 0, 1 CPU, 4 cores, 8 threads
Base clock 3.8 GHz, turbo 3.9 GHz (avg)
65.8% Good
SC Int 99.9
SC Float 101
SC Mixed 100
80% 100 Pts
QC Int 334
QC Float 358
QC Mixed 308
76% 333 Pts
MC Int 484
MC Float 498
MC Mixed 498
74% 493 Pts
15,617 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 11,511,820 CPUs tested.

 Prices

AmazonUS $40012 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.

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Typical Core i7-3820 Builds (Compare 2,145 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 99%
Nuclear submarine
Desktop
Desktop 69%
Battle cruiser
Workstation
Workstation 54%
Yacht

Motherboard: Asus P9X79 - $300

CPU
Core i7-3820Intel  $400Bench 67%, 15,617 samples954x
GPU
GTX 1080Nvidia  $450Bench 126%, 297,827 samples171x
GTX 970Nvidia  $195Bench 64%, 327,864 samples171x
GTX 1070Nvidia  $360Bench 99%, 367,574 samples153x
SSD
850 Evo 250GBSamsung  $78Bench 106%, 296,153 samples114x
850 Evo 500GBSamsung  $120Bench 112%, 236,872 samples107x
840 Evo 250GBSamsung  $207Bench 96%, 74,637 samples78x
RAM
HyperX DDR3 1600 C9 4x4GBKingstonBench 56%, 9,844 samples103x
Vengeance DDR3 1600 C9 4x4GBCorsairBench 54%, 7,968 samples45x
Vengeance DDR3 1600 C9 4x4GBCorsairBench 54%, 12,327 samples32x
EDIT WITH CUSTOM PC BUILDER Value: 89% - Excellent Total price: $1,228

Popular Core i7-3820 compatible motherboards:

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  • - CPU tests include: integer, floating and string.
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Processor Rankings (Price vs Performance) October 2018 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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
4,360

Excellent (edit your comment) Add link

2 months ago.

5 years later sill killer. Great 4C/8T. Sandy Bridge was the last great Intel processor. 90% SC improvement over Core 2 Quad just a few years earlier. The fastest CPUs are only 45% faster at best 5 years later.

CAN-User
Avatar level
2,380

Excellent

8 months ago.

since 2012 my i73820 oc speed max 6.67GHZ worth it

AUS-User
Avatar level
1,996

Excellent

12 months ago.

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

ZAF-User
Avatar level
1,262

Excellent

8 months 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.

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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
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 i7-8700K $370Nvidia GTX 1070 $360Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $120
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $147SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $145SanDisk Ultra Fit 32GB $12
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